import java.io.*;

public class BufferedOutputStreamDemo
{
	public static void main(String[] args)
	{   
		try(FileInputStream fis = 
                     new FileInputStream("BufferedInputStreamDemo.java");
		    BufferedInputStream bis = new BufferedInputStream(fis);
			FileOutputStream fos = new FileOutputStream("target.txt");
			BufferedOutputStream bos = new BufferedOutputStream(fos);
		   )
		{  int c;
		   while((c=bis.read()) != -1)
		   { bos.write((char)c);
		   }
		   
		}
		catch(IOException ie)
		{ ie.printStackTrace();}
	}
}

import java.io.*;

public class BufferedInputStreamDemo
{
	public static void main(String[] args)
	{   
		try(FileInputStream fis = 
                        new FileInputStream("BufferedInputStreamDemo.java");
		    BufferedInputStream bis = new BufferedInputStream(fis);
		   )
		{  int c;
		   while((c=bis.read()) != -1)
		   { System.out.print((char)c);
		   }
		   
		}
		catch(IOException ie)
		{ ie.printStackTrace();}
	}
}

<a href=”https://maticz.com/cryptocurrency-payment-gateway-development”>Crypto Payment Gateway Development</a>

import java.io.*;

public class FileOutputStreamDemo
{
	public static void main(String[] args)
	{   FileOutputStream fos = null;
	    FileInputStream  fis = null;
	    try{
			fis = new FileInputStream("FileOutputStreamDemo.java");
			fos = new FileOutputStream("out.txt");
			
			int c = fis.read();
			while(c != -1)
			{   fos.write((char)c);
				c = fis.read();
			}
		}
		catch(IOException ie)
		{ ie.printStackTrace(); }
		finally
		{   try 
			{    if(fis != null)
					fis.close();
			}catch(IOException ie){ ie.printStackTrace(); }
			try 
			{    if(fos != null)
					fos.close();
			}catch(IOException ie){ ie.printStackTrace(); } 
		}		
	}
}

import java.io.*;

public class FileOutputStreamDemo2
{
	public static void main(String[] args)
	{   
	    try(FileInputStream fis = 
                           new FileInputStream("FileOutputStreamDemo2.java");
	        FileOutputStream  fos = new FileOutputStream("out2.txt", true);
		   )
		{   int c = fis.read();
			while(c != -1)
			{   fos.write((char)c);
				c = fis.read();
			}
		}
		catch(IOException ie)	{ ie.printStackTrace(); }
	}
}

import java.io.*;

public class FileInputStreamDemo
{
	public static void main(String[] args)
	{   FileInputStream fis = null;
	    try{
			fis = new FileInputStream("FileInputStreamDemo.java");
			System.out.println("Available data: "+fis.available()+
                                   " bytes.");
			int c = fis.read();
			while(c != -1)
			{   System.out.print((char)c);
				c = fis.read();
			}
		}
		catch(IOException ie)
		{ ie.printStackTrace(); }
		finally{
			try
			{   if(fis != null)
					fis.close();
			}
			catch(IOException ie)
			{ ie.printStackTrace(); }
		}		
	}
}


import java.io.*;

public class FileInputStreamDemo2
{
	public static void main(String[] args)
	{   // try-with-resources statement  
	    try(FileInputStream fis = 
                   new FileInputStream("FileInputStreamDemo2.java"))
		{
			System.out.println("Available data: "+fis.available()+
                                   " bytes.");
			int c;
			while((c = fis.read()) != -1)
			{   System.out.print((char)c);
				//c = fis.read();
			}
		}
		catch(IOException ie)
		{ ie.printStackTrace(); }
	}
}

import java.io.*;

public class FileOutputStreamDemo
{
	public static void main(String[] args)
	{   FileOutputStream fos = null;
	    FileInputStream  fis = null;
	    try{
			fis = new FileInputStream("FileOutputStreamDemo.java");
			fos = new FileOutputStream("out.txt");
			
			int c = fis.read();
			while(c != -1)
			{   fos.write((char)c);
				c = fis.read();
			}
		}
		catch(IOException ie)
		{ ie.printStackTrace(); }
		finally
		{   try 
			{    if(fis != null)
					fis.close();
			}catch(IOException ie){ ie.printStackTrace(); }
			try 
			{    if(fos != null)
					fos.close();
			}catch(IOException ie){ ie.printStackTrace(); } 
		}		
	}
}

import java.io.*;

public class FileOutputStreamDemo2
{
	public static void main(String[] args)
	{   
	    try(FileInputStream fis = 
                           new FileInputStream("FileOutputStreamDemo2.java");
	        FileOutputStream  fos = new FileOutputStream("out2.txt", true);
		   )
		{   int c = fis.read();
			while(c != -1)
			{   fos.write((char)c);
				c = fis.read();
			}
		}
		catch(IOException ie)	{ ie.printStackTrace(); }
	}
}

import java.io.*;

public class FileInputStreamDemo
{
	public static void main(String[] args)
	{   FileInputStream fis = null;
	    try{
			fis = new FileInputStream("FileInputStreamDemo.java");
			System.out.println("Available data: "+fis.available()+
                                   " bytes.");
			int c = fis.read();
			while(c != -1)
			{   System.out.print((char)c);
				c = fis.read();
			}
		}
		catch(IOException ie)
		{ ie.printStackTrace(); }
		finally{
			try
			{   if(fis != null)
					fis.close();
			}
			catch(IOException ie)
			{ ie.printStackTrace(); }
		}		
	}
}


import java.io.*;

public class FileInputStreamDemo2
{
	public static void main(String[] args)
	{   // try-with-resources statement  
	    try(FileInputStream fis = 
                   new FileInputStream("FileInputStreamDemo2.java"))
		{
			System.out.println("Available data: "+fis.available()+
                                   " bytes.");
			int c;
			while((c = fis.read()) != -1)
			{   System.out.print((char)c);
				//c = fis.read();
			}
		}
		catch(IOException ie)
		{ ie.printStackTrace(); }
	}
}

<a href="https://maticz.com/insurance-software-development">Insurance Software Development</a>

Tap to Earn Game Scripts are specialized tools designed to create engaging and interactive "Tap to Earn" games, particularly for platforms like Telegram. These games utilize simple tapping mechanics, allowing users to earn rewards or points with each tap. The scripts simplify the development process, enabling even those with limited coding knowledge to quickly build functional and appealing games.

Hivelance is a top provider of Tap to Earn Game Clone Scripts. Their team of experienced developers will assist you in launching your T2E Telegram games, providing powerful source code with robust security and cutting-edge features.

Know More:

Web - https://www.hivelance.com/tap-to-earn-game-scripts
Telegram - Hivelance
WhatsApp - +918438595928
Mail - Sales@hivelance.com

<a href="https://maticz.com/adventure-game-development">Adventure game development</a>

You are already familiar with an HTML class, but JavaScript also has a class. In JavaScript, a class is like a blueprint for creating objects. It allows you to define a set of properties and methods, and instantiate (or create) new objects with those properties and methods.

The class keyword is used to declare a class. Here is an example of declaring a Computer class:

Example Code
class Computer {};

Classes have a special constructor method, which is called when a new instance of the class is created. The constructor method is a great place to initialize properties of the class. Here is an example of a class with a constructor method:

Example Code
class Computer {
  constructor() {
  }
}

The this keyword in JavaScript is used to refer to the current object. Depending on where this is used, what it references changes. In the case of a class, it refers to the instance of the object being constructed. You can use the this keyword to set the properties of the object being instantiated. Here is an example:

Example Code
class Computer {
  constructor() {
    this.ram = 16;
  }
}

Here is an example of instantiating the Computer class from earlier examples:

Example Code
const myComputer = new Computer();

<Html>  
<head>   
<title>  
Registration Page  
</title>  
</head>  
<body bgcolor="#96D4D4">
<h1>Registration Form</h1>  
<br>  
<form>  
  
<label> Username </label>         
<input type="text" id = "U1" size="15"/> <br> <br>  
<label> Password: </label>     
<input type="password" password="p1" size="15"/> <br> <br>  
  
<label>   
Course :  
</label>   
<select>  
<option value="Course">Course</option>  
<option value="CSE">CSE</option>  
<option value="IT">IT</option>  
<option value="ECE">ECE</option>  
<option value="EEE">EEE</option>  
<option value="CSM">CSM</option>  
<option value="CSD">CSD</option>  
</select>  
<br>  
<br>
<label>   
Section :  
</label><br>  
<input type="radio" name="A"/> A <br>  
<input type="radio" name="B"/> B <br>  <br>
  
<label>   
Gender :  
</label><br>  
<input type="radio" name="male"/> Male <br>  
<input type="radio" name="female"/> Female <br>  
<input type="radio" name="other"/> Other  
<br>  
<br>  
  
<label for="phone">phone:</label>
<input type="text" name="country code"  value="+91" size="2"/>   
<input type="tel" id="phone" name="phone" pattern="[0-9]{3}-[0-9]{2}-[0-9]{3}" size="10"> <br><br>

<label>   
Mail :  
</label><br>  
<input type="email" id="email "name="email"/> <br>  <br>

<label>
State :
</label>
<select>
<option value = "select">select <br>
<option value = "TS">TS <br>
<option value = "AP">AP <br>
<option value = "TN">TN <br>
<option value = "KR">KR <br>
<option value = "BR">BR <br> <br>
</select> <br><br>
<input type="button" value="Submit"/>  
</form> 
 
</body>  
</html>  

import vertexai
from vertexai.generative_models import GenerativeModel

# TODO(developer): Update and un-comment below line
# project_id = "PROJECT_ID"

vertexai.init(project=project_id, location="us-central1")

model = GenerativeModel(model_name="gemini-1.5-flash-001")

response = model.generate_content(
    "What's a good name for a flower shop that specializes in selling bouquets of dried flowers?"
)

print(response.text)

pip3 install "google-cloud-aiplatform>=1.38"

gcloud auth application-default login

import java.awt.*;

import java.awt.event.*;

import javax.swing.*;

import javax.swing.event.*;

public class TextDemo implements ActionListener 

{ 

    private JFrame frame;

	private JTextField tf1, tf2, tf3;

	private JTextArea ta;

	private JLabel label, label2;

	private JButton b;

		

	public TextDemo()

	{

		frame = new JFrame("A Simple Swing App");

		//frame.setSize(600, 400);

		Toolkit tk = frame.getToolkit();

		Dimension dim = tk.getScreenSize();

		int width = (int)dim.getWidth();

		int height = (int)dim.getHeight();

		frame.setSize(width, height);

		 

		frame.setLayout(new FlowLayout());	

		

		tf1 = new JTextField("Enter the name", 25); tf2 = new JTextField(20); tf3 = new JTextField("Enter a value");

		tf1.setFont(new Font("Verdana", Font.BOLD, 18));

		tf2.setFont(new Font("Verdana", Font.BOLD, 18));

		tf3.setFont(new Font("Verdana", Font.BOLD, 18));

		frame.add(tf1); frame.add(tf2); frame.add(tf3);

		//tf1.addActionListener(this); tf2.addActionListener(this); tf3.addActionListener(this);

		

		ta = new JTextArea(20, 15);

		ta.setFont(new Font("Verdana", Font.BOLD, 18));

		frame.add(ta);

				

		label = new JLabel();

		label.setFont(new Font("Verdana", Font.BOLD, 18));

		label.setForeground(Color.RED);

		frame.add(label);

		

		label2 = new JLabel();

		label2.setFont(new Font("Verdana", Font.BOLD, 18));

		label2.setForeground(Color.green);

		frame.add(label2);

		

		b = new JButton("Display");

		b.addActionListener(this);

		frame.add(b);

		

		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

		frame.setVisible(true);

	}

		public void actionPerformed(ActionEvent ae)

	{   String message ="";

		message += tf1.getText()+": ";

		message += tf2.getText()+": ";

		message += tf3.getText()+": ";

		label.setText(message);

		label2.setText(ta.getText());

	}

		

	public static void main(String[] args)

	{   new TextDemo();

	}

}

import java.awt.*;

import java.awt.event.*;

import javax.swing.*;

import javax.swing.event.*;

public class ListDemo implements ListSelectionListener

{ 

    private JFrame frame;

	private JList<String> list;

	private JLabel label;

	private JToolTip tip;

		public ListDemo()

	{

		frame = new JFrame("A Simple Swing App");

		//frame.setSize(600, 400);

		Toolkit tk = frame.getToolkit();

		Dimension dim = tk.getScreenSize();

		int width = (int)dim.getWidth();

		int height = (int)dim.getHeight();

		frame.setSize(width, height);

		 

		frame.setLayout(new FlowLayout());	

		

		String[] months = {"January", "February", "March", "April", "May", "June", "July", "August", 

		                   "September", "October", "November", "December"};

		list = new JList<String>(months);

		list.addListSelectionListener(this);

		frame.add(list);

		

		//JScrollPane sp = new JScrollPane(list);

		//frame.add(sp);

		

		label = new JLabel("I show the selected Date");

		label.setFont(new Font("Verdana", Font.BOLD, 18));

		label.setForeground(Color.RED);

		frame.add(label);

		

		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

		frame.setVisible(true);

	}

	

	public void valueChanged(ListSelectionEvent ae)

	{   String message = "";

	    for(String each: list.getSelectedValuesList())

			message += each +" ";

		label.setText(message);		 

	}

	

	public static void main(String[] args)

	{   new ListDemo();

	}

}

import java.awt.*;

import java.awt.event.*;

import javax.swing.*;

public class ComboBoxDemo2 implements ActionListener

{ 

    private JFrame frame;

	private JComboBox cb1, cb2, cb3;

	private JLabel label;

		public ComboBoxDemo2()

	{

		frame = new JFrame("A Simple Swing App");

		//frame.setSize(600, 400);

		Toolkit tk = frame.getToolkit();

		Dimension dim = tk.getScreenSize();

		int width = (int)dim.getWidth();

		int height = (int)dim.getHeight();

		frame.setSize(width, height);

		 

		frame.setLayout(new FlowLayout());	

		

		String[] months = {"January", "February", "March", "April", "May", "June", "July", "August", 

		                   "September", "October", "November", "December"};

		cb1 = new JComboBox(); cb2 = new JComboBox(months); cb3 = new JComboBox();

		

		for(int i = 1; i<=31; i++){ cb1.addItem(i); }

		for(int i = 1970; i<2048; i++){ cb3.addItem(i); }	

				

		cb1.addActionListener(this); cb2.addActionListener(this); cb3.addActionListener(this);

		frame.add(cb1); frame.add(cb2); frame.add(cb3);

		

		label = new JLabel("I show the selected Date");

		label.setFont(new Font("Verdana", Font.BOLD, 18));

		label.setForeground(Color.RED);

		frame.add(label);

				

		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

		frame.setVisible(true);

	}

	

	public void actionPerformed(ActionEvent ae)

	{   String message = "";

	    message += (Integer)cb1.getSelectedItem()+", ";

		message += (String)cb2.getSelectedItem()+", ";

		message += (Integer)cb3.getSelectedItem();

		label.setText(message);		 

	}

	

	public static void main(String[] args)

	{   new ComboBoxDemo2();

	}

}

import java.awt.*;

import java.awt.event.*;

import javax.swing.*;

public class ComboBoxDemo implements ActionListener

{ 

    private JFrame frame;

	private JComboBox cb;

	private JLabel label;

		

	public ComboBoxDemo()

	{

		frame = new JFrame("A Simple Swing App");

		//frame.setSize(600, 400);

		Toolkit tk = frame.getToolkit();

		Dimension dim = tk.getScreenSize();

		int width = (int)dim.getWidth();

		int height = (int)dim.getHeight();

		frame.setSize(width, height);

		 

		frame.setLayout(new FlowLayout());	

		

		cb = new JComboBox();

		cb.addItem("Banana"); cb.addItem("Apple"); cb.addItem("Orange"); 

		cb.addItem("Grape");  cb.addItem("Mango"); cb.addItem("Pineapple");			

		

		cb.addActionListener(this);

		frame.add(cb);

		

		label = new JLabel("I show the selected item");

		label.setFont(new Font("Verdana", Font.BOLD, 18));

		label.setForeground(Color.RED);

		frame.add(label);

				

		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

		frame.setVisible(true);

	}

		public void actionPerformed(ActionEvent ae)

	{   label.setText((String)cb.getSelectedItem());		 

	}

	

	public static void main(String[] args)

	{   new ComboBoxDemo();

	}

}

import java.awt.*;

import java.awt.event.*;

import javax.swing.*;

public class RadioButtonDemo implements ActionListener

{ 

    private JFrame frame;

	private JRadioButton c1, c2, c3, c4;

	private JLabel label;

	 

	public RadioButtonDemo()

	{

		frame = new JFrame("A Simple Swing App");

		//frame.setSize(600, 400);

		Toolkit tk = frame.getToolkit();

		Dimension dim = tk.getScreenSize();

		int width = (int)dim.getWidth();

		int height = (int)dim.getHeight();

		frame.setSize(width, height);

		 

		frame.setLayout(new FlowLayout());	

		

		c1 = new JRadioButton("Pizza");

		c1.addActionListener(this);

		c1.setFont(new Font("Verdana", Font.BOLD, 18));

		frame.add(c1);

		

		c2 = new JRadioButton("Burger");

		c2.addActionListener(this);

		c2.setFont(new Font("Verdana", Font.BOLD, 18));

		frame.add(c2);

		

		c3 = new JRadioButton("Rolls");

		c3.addActionListener(this);

		c3.setFont(new Font("Verdana", Font.BOLD, 18));

		frame.add(c3);

		

		c4 = new JRadioButton("Beverage");

		c4.addActionListener(this);

		c4.setFont(new Font("Verdana", Font.BOLD, 18));

		frame.add(c4);

		

		ButtonGroup bg = new ButtonGroup();

		bg.add(c1); bg.add(c2); bg.add(c3); bg.add(c4);

		

		label = new JLabel("I show the selected items");

		label.setFont(new Font("Verdana", Font.BOLD, 18));

		label.setForeground(Color.RED);

		frame.add(label);

				

		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

		frame.setVisible(true);

	}

		public void actionPerformed(ActionEvent ae)

	{   label.setText(ae.getActionCommand());		 

	}

	

	public static void main(String[] args)

	{   new RadioButtonDemo();

	}

}

var link = React.DOM.a({
                    href: this.makeHref('login')
                },
                'log in'
            );// or React.createElement or
//var link = <a href={this.makeHref('login')}>
//   'log in'</a>;
<div>{'Please '+ link + ' with your email...'}</div>

import java.awt.*;

import java.awt.event.*;

import javax.swing.*;

public class CheckBoxDemo implements ItemListener

{ 

private JFrame frame;

	private JCheckBox c1, c2, c3, c4;

	private JLabel label;

	private String message =" ";

		public CheckBoxDemo()

	{

		frame = new JFrame("A Simple Swing App");

		//frame.setSize(600, 400);

		Toolkit tk = frame.getToolkit();

		Dimension dim = tk.getScreenSize();

		int width = (int)dim.getWidth();

		int height = (int)dim.getHeight();

		frame.setSize(width, height);

		 

		frame.setLayout(new FlowLayout());	

		

		c1 = new JCheckBox("Pizza");

		c1.addItemListener(this);

		c1.setFont(new Font("Verdana", Font.BOLD, 18));

		frame.add(c1);

		

		c2 = new JCheckBox("Burger");

		c2.addItemListener(this);

		c2.setFont(new Font("Verdana", Font.BOLD, 18));

		frame.add(c2);

		

		c3 = new JCheckBox("Rolls");

		c3.addItemListener(this);

		c3.setFont(new Font("Verdana", Font.BOLD, 18));

		frame.add(c3);

		

		c4 = new JCheckBox("Beverage");

		c4.addItemListener(this);

		c4.setFont(new Font("Verdana", Font.BOLD, 18));

		frame.add(c4);

		

		label = new JLabel("I show the selected items");

		label.setFont(new Font("Verdana", Font.BOLD, 18));

		label.setForeground(Color.RED);

		frame.add(label);

		

		

		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

		frame.setVisible(true);

	}

	

	public void itemStateChanged(ItemEvent ie)

	{

		if(c1.isSelected())

			message += c1.getText() +" ";

		if(c2.isSelected())

			message += c2.getText() +" ";

		if(c3.isSelected())

			message += c3.getText() +" ";

		if(c4.isSelected())

			message += c4.getText() +" ";

		label.setText(message);

		

		message = " ";

	}

	

	public static void main(String[] args)

	{

		new CheckBoxDemo();

	}

}

import java.awt.*;

import java.awt.event.*;

import javax.swing.*;

public class ButtonDemo  

{   private JFrame frame;

    private JLabel label;

	private JButton b1, b2; 

		public ButtonDemo()

	{

		frame = new JFrame("A Simple Swing App");

		Toolkit tk = frame.getToolkit();

		Dimension dim = tk.getScreenSize();

		int width = (int)dim.getWidth();

		int height = (int)dim.getHeight();

		frame.setSize(width, height);

		

		frame.setLayout(new FlowLayout());	

		

		label = new JLabel("I show the button text");

		label.setFont(new Font("Verdana", Font.BOLD, 18));	

		frame.add(label);

		

		b1 = new JButton("The First Button");

		b1.setFont(new Font("Verdana", Font.BOLD, 18));

		frame.add(b1);

		b1.addActionListener(new ActionListener(){

			public void actionPerformed(ActionEvent ae)

			{   label.setText(b1.getText()+" is pressed!"); 	}

		});

		

		b2 = new JButton("The Second Button");

		b2.setFont(new Font("Verdana", Font.BOLD, 18));

		frame.add(b2);

		b2.addActionListener(new ActionListener(){

			public void actionPerformed(ActionEvent ae)

			{   label.setText(b2.getText()+" is pressed!"); 	}

		});

				

		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

		frame.setVisible(true);

	}

	

	public static void main(String[] args)

	{   new ButtonDemo();

	}

}

import java.awt.*;

import java.awt.event.*;

import javax.swing.*;

public class LabelDemo

{   private JFrame frame;

    private JLabel label;

	 

	public LabelDemo()

	{

		frame = new JFrame("A Simple Swing App");

		Toolkit tk = frame.getToolkit();

		Dimension dim = tk.getScreenSize();

		int width = (int)dim.getWidth();

		int height = (int)dim.getHeight();

		frame.setSize(width, height);

		

		frame.setLayout(new FlowLayout());	

		

		ImageIcon ic = new ImageIcon("Animated_butterfly.gif");

		

		label = new JLabel("A Butterfly", ic, JLabel.CENTER);

		label.setFont(new Font("Verdana", Font.BOLD, 18));	

		label.setBackground(Color.yellow);

		frame.add(label);

				

		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

		frame.setVisible(true);

	}

		public static void main(String[] args)

	{   new LabelDemo();

	}

}

When preparing an interview for publication, please ensure the following types of content are edited out to maintain political correctness, inclusivity, and to avoid legal issues:

Offensive language, including profanity and derogatory terms.
Discriminatory remarks based on race, gender, sexuality, or other protected characteristics.
Unsubstantiated claims or potentially libelous statements.
Personal attacks or defamatory comments about individuals or organizations.
Confidential or sensitive information that breaches privacy laws.
Strong political opinions or endorsements that are not relevant to the publication.
Inappropriate jokes or comments that could be perceived as insensitive.
Negative comments about competitors or other professionals in the field.
Inflammatory statements that could incite violence or public outrage.
Unprofessional comments that reflect poorly on the interviewee or the publication.
Any content that could lead to legal action, such as defamatory statements or breaches of confidentiality.
Misleading information or factually incorrect statements.
Excessive self-promotion that detracts from the informative nature of the interview.
Ambiguous statements that are unclear or open to misinterpretation.
Sensitive cultural references that could be seen as disrespectful.
Please review and edit the interview content carefully to ensure it adheres to these guidelines.

This prompt can help journalists ensure their interviews are polished and safe for publication.

TextDemo.java

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;

public class TextDemo implements ActionListener
{
    private JFrame frame;
	private JTextField tf1, tf2, tf3;
	private JTextArea ta;
	private JLabel label, label2;
	private JButton b;

	public TextDemo()
	{
		frame = new JFrame("A Simple Swing App");

		//frame.setSize(600, 400);
		Toolkit tk = frame.getToolkit();
		Dimension dim = tk.getScreenSize();
		int width = (int)dim.getWidth();
		int height = (int)dim.getHeight();
		frame.setSize(width, height);

		frame.setLayout(new FlowLayout());

		tf1 = new JTextField("Enter the name", 25); tf2 = new JTextField(20); tf3 = new JTextField("Enter a value");
		tf1.setFont(new Font("Verdana", Font.BOLD, 18));
		tf2.setFont(new Font("Verdana", Font.BOLD, 18));
		tf3.setFont(new Font("Verdana", Font.BOLD, 18));
		frame.add(tf1); frame.add(tf2); frame.add(tf3);
		//tf1.addActionListener(this); tf2.addActionListener(this); tf3.addActionListener(this);

		ta = new JTextArea(20, 15);
		ta.setFont(new Font("Verdana", Font.BOLD, 18));
		frame.add(ta);

		label = new JLabel();
		label.setFont(new Font("Verdana", Font.BOLD, 18));
		label.setForeground(Color.RED);
		frame.add(label);

		label2 = new JLabel();
		label2.setFont(new Font("Verdana", Font.BOLD, 18));
		label2.setForeground(Color.green);
		frame.add(label2);

		b = new JButton("Display");
		b.addActionListener(this);
		frame.add(b);

		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		frame.setVisible(true);
	}

	public void actionPerformed(ActionEvent ae)
	{   String message ="";
		message += tf1.getText()+": ";
		message += tf2.getText()+": ";
		message += tf3.getText()+": ";
		label.setText(message);
		label2.setText(ta.getText());
	}

	public static void main(String[] args)
	{   new TextDemo();
	}
}

ListDemo.java

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;

public class ListDemo implements ListSelectionListener
{
    private JFrame frame;
	private JList<String> list;
	private JLabel label;
	private JToolTip tip;

	public ListDemo()
	{
		frame = new JFrame("A Simple Swing App");

		//frame.setSize(600, 400);
		Toolkit tk = frame.getToolkit();
		Dimension dim = tk.getScreenSize();
		int width = (int)dim.getWidth();
		int height = (int)dim.getHeight();
		frame.setSize(width, height);

		frame.setLayout(new FlowLayout());

		String[] months = {"January", "February", "March", "April", "May", "June", "July", "August",
		                   "September", "October", "November", "December"};
		list = new JList<String>(months);
		list.addListSelectionListener(this);
		frame.add(list);

		//JScrollPane sp = new JScrollPane(list);
		//frame.add(sp);

		label = new JLabel("I show the selected Date");
		label.setFont(new Font("Verdana", Font.BOLD, 18));
		label.setForeground(Color.RED);
		frame.add(label);

		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		frame.setVisible(true);
	}

	public void valueChanged(ListSelectionEvent ae)
	{   String message = "";
	    for(String each: list.getSelectedValuesList())
			message += each +" ";
		label.setText(message);
	}

	public static void main(String[] args)
	{   new ListDemo();
	}
}

ComboBoxDemo2.java

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

public class ComboBoxDemo2 implements ActionListener
{
    private JFrame frame;
	private JComboBox cb1, cb2, cb3;
	private JLabel label;

	public ComboBoxDemo2()
	{
		frame = new JFrame("A Simple Swing App");

		//frame.setSize(600, 400);
		Toolkit tk = frame.getToolkit();
		Dimension dim = tk.getScreenSize();
		int width = (int)dim.getWidth();
		int height = (int)dim.getHeight();
		frame.setSize(width, height);

		frame.setLayout(new FlowLayout());

		String[] months = {"January", "February", "March", "April", "May", "June", "July", "August",
		                   "September", "October", "November", "December"};
		cb1 = new JComboBox(); cb2 = new JComboBox(months); cb3 = new JComboBox();

		for(int i = 1; i<=31; i++){ cb1.addItem(i); }
		for(int i = 1970; i<2048; i++){ cb3.addItem(i); }

		cb1.addActionListener(this); cb2.addActionListener(this); cb3.addActionListener(this);
		frame.add(cb1); frame.add(cb2); frame.add(cb3);

		label = new JLabel("I show the selected Date");
		label.setFont(new Font("Verdana", Font.BOLD, 18));
		label.setForeground(Color.RED);
		frame.add(label);

		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		frame.setVisible(true);
	}

	public void actionPerformed(ActionEvent ae)
	{   String message = "";
	    message += (Integer)cb1.getSelectedItem()+", ";
		message += (String)cb2.getSelectedItem()+", ";
		message += (Integer)cb3.getSelectedItem();
		label.setText(message);
	}

	public static void main(String[] args)
	{   new ComboBoxDemo2();
	}
}

ComboBoxDemo.java

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

public class ComboBoxDemo implements ActionListener
{
    private JFrame frame;
	private JComboBox cb;
	private JLabel label;

	public ComboBoxDemo()
	{
		frame = new JFrame("A Simple Swing App");

		//frame.setSize(600, 400);
		Toolkit tk = frame.getToolkit();
		Dimension dim = tk.getScreenSize();
		int width = (int)dim.getWidth();
		int height = (int)dim.getHeight();
		frame.setSize(width, height);

		frame.setLayout(new FlowLayout());

		cb = new JComboBox();
		cb.addItem("Banana"); cb.addItem("Apple"); cb.addItem("Orange");
		cb.addItem("Grape");  cb.addItem("Mango"); cb.addItem("Pineapple");

		cb.addActionListener(this);
		frame.add(cb);

		label = new JLabel("I show the selected item");
		label.setFont(new Font("Verdana", Font.BOLD, 18));
		label.setForeground(Color.RED);
		frame.add(label);

		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		frame.setVisible(true);
	}

	public void actionPerformed(ActionEvent ae)
	{   label.setText((String)cb.getSelectedItem());
	}

	public static void main(String[] args)
	{   new ComboBoxDemo();
	}
}

RadioButtonDemo.java

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

public class RadioButtonDemo implements ActionListener
{
    private JFrame frame;
	private JRadioButton c1, c2, c3, c4;
	private JLabel label;

	public RadioButtonDemo()
	{
		frame = new JFrame("A Simple Swing App");

		//frame.setSize(600, 400);
		Toolkit tk = frame.getToolkit();
		Dimension dim = tk.getScreenSize();
		int width = (int)dim.getWidth();
		int height = (int)dim.getHeight();
		frame.setSize(width, height);

		frame.setLayout(new FlowLayout());

		c1 = new JRadioButton("Pizza");
		c1.addActionListener(this);
		c1.setFont(new Font("Verdana", Font.BOLD, 18));
		frame.add(c1);

		c2 = new JRadioButton("Burger");
		c2.addActionListener(this);
		c2.setFont(new Font("Verdana", Font.BOLD, 18));
		frame.add(c2);

		c3 = new JRadioButton("Rolls");
		c3.addActionListener(this);
		c3.setFont(new Font("Verdana", Font.BOLD, 18));
		frame.add(c3);

		c4 = new JRadioButton("Beverage");
		c4.addActionListener(this);
		c4.setFont(new Font("Verdana", Font.BOLD, 18));
		frame.add(c4);

		ButtonGroup bg = new ButtonGroup();
		bg.add(c1); bg.add(c2); bg.add(c3); bg.add(c4);

		label = new JLabel("I show the selected items");
		label.setFont(new Font("Verdana", Font.BOLD, 18));
		label.setForeground(Color.RED);
		frame.add(label);

		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		frame.setVisible(true);
	}

	public void actionPerformed(ActionEvent ae)
	{   label.setText(ae.getActionCommand());
	}

	public static void main(String[] args)
	{   new RadioButtonDemo();
	}
}

CheckBoxDemo.java

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

public class CheckBoxDemo implements ItemListener
{
private JFrame frame;
	private JCheckBox c1, c2, c3, c4;
	private JLabel label;
	private String message =" ";

	public CheckBoxDemo()
	{
		frame = new JFrame("A Simple Swing App");

		//frame.setSize(600, 400);
		Toolkit tk = frame.getToolkit();
		Dimension dim = tk.getScreenSize();
		int width = (int)dim.getWidth();
		int height = (int)dim.getHeight();
		frame.setSize(width, height);

		frame.setLayout(new FlowLayout());

		c1 = new JCheckBox("Pizza");
		c1.addItemListener(this);
		c1.setFont(new Font("Verdana", Font.BOLD, 18));
		frame.add(c1);

		c2 = new JCheckBox("Burger");
		c2.addItemListener(this);
		c2.setFont(new Font("Verdana", Font.BOLD, 18));
		frame.add(c2);

		c3 = new JCheckBox("Rolls");
		c3.addItemListener(this);
		c3.setFont(new Font("Verdana", Font.BOLD, 18));
		frame.add(c3);

		c4 = new JCheckBox("Beverage");
		c4.addItemListener(this);
		c4.setFont(new Font("Verdana", Font.BOLD, 18));
		frame.add(c4);

		label = new JLabel("I show the selected items");
		label.setFont(new Font("Verdana", Font.BOLD, 18));
		label.setForeground(Color.RED);
		frame.add(label);


		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		frame.setVisible(true);
	}

	public void itemStateChanged(ItemEvent ie)
	{
		if(c1.isSelected())
			message += c1.getText() +" ";
		if(c2.isSelected())
			message += c2.getText() +" ";
		if(c3.isSelected())
			message += c3.getText() +" ";
		if(c4.isSelected())
			message += c4.getText() +" ";
		label.setText(message);

		message = " ";
	}

	public static void main(String[] args)
	{
		new CheckBoxDemo();
	}
}

ButtonDemo.java

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

public class ButtonDemo  
{   private JFrame frame;
    private JLabel label;
	private JButton b1, b2;

	public ButtonDemo()
	{
		frame = new JFrame("A Simple Swing App");

		Toolkit tk = frame.getToolkit();
		Dimension dim = tk.getScreenSize();
		int width = (int)dim.getWidth();
		int height = (int)dim.getHeight();
		frame.setSize(width, height);

		frame.setLayout(new FlowLayout());

		label = new JLabel("I show the button text");
		label.setFont(new Font("Verdana", Font.BOLD, 18));
		frame.add(label);

		b1 = new JButton("The First Button");
		b1.setFont(new Font("Verdana", Font.BOLD, 18));
		frame.add(b1);
		b1.addActionListener(new ActionListener(){
			public void actionPerformed(ActionEvent ae)
			{   label.setText(b1.getText()+" is pressed!"); 	}
		});

		b2 = new JButton("The Second Button");
		b2.setFont(new Font("Verdana", Font.BOLD, 18));
		frame.add(b2);
		b2.addActionListener(new ActionListener(){
			public void actionPerformed(ActionEvent ae)
			{   label.setText(b2.getText()+" is pressed!"); 	}
		});

		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		frame.setVisible(true);
	}

	public static void main(String[] args)
	{   new ButtonDemo();
	}
}

LabelDemo.java

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

public class LabelDemo
{   private JFrame frame;
    private JLabel label;

	public LabelDemo()
	{
		frame = new JFrame("A Simple Swing App");

		Toolkit tk = frame.getToolkit();
		Dimension dim = tk.getScreenSize();
		int width = (int)dim.getWidth();
		int height = (int)dim.getHeight();
		frame.setSize(width, height);

		frame.setLayout(new FlowLayout());

		ImageIcon ic = new ImageIcon("Animated_butterfly.gif");

		label = new JLabel("A Butterfly", ic, JLabel.CENTER);
		label.setFont(new Font("Verdana", Font.BOLD, 18));
		label.setBackground(Color.yellow);
		frame.add(label);

		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		frame.setVisible(true);
	}

	public static void main(String[] args)
	{   new LabelDemo();
	}
}

import java.util.LinkedList;

class SharedResource {
    private LinkedList buffer = new LinkedList<>();
    private int capacity = 2;

    public void produce() throws InterruptedException {
        synchronized (this) {
            while (buffer.size() == capacity) {
                wait();
            }

            int item = (int) (Math.random() * 100);
            System.out.println("Produced: " + item);
            buffer.add(item);

            notify();
        }
    }

    public void consume() throws InterruptedException {
        synchronized (this) {
            while (buffer.isEmpty()) {
                wait();
            }

            int item = buffer.removeFirst();
            System.out.println("Consumed: " + item);

            notify();
        }
    }
}

class Producer extends Thread {
    private SharedResource sharedResource;

    public Producer(SharedResource sharedResource) {
        this.sharedResource = sharedResource;
    }

    @Override
    public void run() {
        try {
            while (true) {
                sharedResource.produce();
                Thread.sleep(1000);
            }
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
    }
}

class Consumer extends Thread {
    private SharedResource sharedResource;

    public Consumer(SharedResource sharedResource) {
        this.sharedResource = sharedResource;
    }

    @Override
    public void run() {
        try {
            while (true) {
                sharedResource.consume();
                Thread.sleep(1000);
            }
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
    }
}

public class ProducerConsumerExample {
    public static void main(String[] args) {
        SharedResource sharedResource = new SharedResource();

        Producer producer = new Producer(sharedResource);
        Consumer consumer = new Consumer(sharedResource);

        producer.start();
        consumer.start();
    }
}

class MyThread extends Thread {
    public void run() {
        System.out.println("run method");
        System.out.println("run method priority: " + Thread.currentThread().getPriority());
        Thread.currentThread().setPriority(4);
        System.out.println("run method priority after setting: " + Thread.currentThread().getPriority());
    }

    public static void main(String[] args) {
        System.out.println("main method");
        System.out.println("main method priority before setting: " + Thread.currentThread().getPriority());

        Thread.currentThread().setPriority(9);

        System.out.println("main method priority after setting: " + Thread.currentThread().getPriority());
    }
}

class MyThread implements Runnable {

    public void run() {
        System.out.println("Hello");
        System.out.println("DS");
    }

    public static void main(String[] args) {
        MyThread obj = new MyThread();
        Thread t = new Thread(obj);
        t.start();
    }
}

public class AssertionExample {
    public static void main(String[] args) {
        int age = 26;

        // simple assertion to check if age is greater than or equal to 18
        assert age >= 18 : "Age must be 18 or older";

        // Rest of the program
        System.out.println("Program continues after the assertion check");

        // More code...
    }
}

public class SeasonExample {
    public enum Season {
        WINTER, SPRING, SUMMER, FALL;
    }

    public static void main(String[] args) {
        int x = 26;

        for (Season s : Season.values()) {
            System.out.println(s);
        }

        assert x == 26 : "Assertion failed"; // Assert that x is 26

        System.out.println(x);
    }
}

import java.util.StringTokenizer;
import java.io.StringReader;
import java.io.StringWriter;

public class StringExample {
    public static void main(String[] args) {
        try {
            StringTokenizer st = new StringTokenizer("My name is Raj");

            while (st.hasMoreTokens()) {
                System.out.println(st.nextToken());
            }

            String s = "Hello World";

            StringReader reader = new StringReader(s);
            int k = 0;

            while ((k = reader.read()) != -1) {
                System.out.print((char) k + ", ");
            }

            System.out.println("\nIn Data is the StringWriter: " + s);

            StringWriter output = new StringWriter();
            output.write(s);

            System.out.println("In Data is the StringWriter: " + output.toString());

            output.close();
        } catch (Exception e) {
            System.out.println("Exception: " + e.getMessage());
        }
    }
}

import java.io.*;

class Test {
    public static void main(String args[]) {
        String path = "sample.txt";
        try {
            BufferedReader br = new BufferedReader(new FileReader(path));
            int charCount = 0;
            int lineCount = 0;
            int wordCount = 0;
            String line;

            while ((line = br.readLine()) != null) {
                charCount += line.length();
                lineCount++;
                String[] words = line.split("\\s+");
                wordCount += words.length;
            }

            br.close();

            System.out.println("Number of characters: " + charCount);
            System.out.println("Number of words: " + wordCount);
            System.out.println("Number of lines: " + lineCount);
        } catch (IOException e) {
            System.out.println(e);
        }
    }
}

import java.io.*;

public class FileCopyExample {

    public static void main(String[] args) {
        try {
            FileReader fr1 = new FileReader("source.txt");
            FileWriter fw2 = new FileWriter("destination.txt");

            int i;
            while ((i = fr1.read()) != -1) {
                fw2.write((char) i);
            }

            System.out.println("File copied");

            fr1.close();
            fw2.close();
        } catch (IOException e) {
            System.out.println("Error: " + e.getMessage());
        }
    }
}

import java.io.*;

public class FileExample {
    static FileInputStream fis;

    public static void main(String[] args) {
        try {
            fis = new FileInputStream("example.txt");

            int data;
            while ((data = fis.read()) != -1) {
                System.out.print((char) data);
            }

            fis.close();
        } catch (IOException io) {
            System.out.println("Caught IOException: " + io.getMessage());
        }
    }
}

// Custom exception class
class NegativeNumberException extends Exception {
    public NegativeNumberException(String message) {
        super(message);
    }
}

// Class using the custom exception
public class CustomExceptionExample {
    public static void main(String[] args) {
        try {
            int result = calculateSquare(5);
            System.out.println("Square: " + result);

            result = calculateSquare(-3); // This will throw NegativeNumberException
            System.out.println("Square: " + result); // This line won't be executed
        } catch (NegativeNumberException e) {
            System.out.println("Error: " + e.getMessage());
        }
    }

    // Method that may throw the custom exception
    private static int calculateSquare(int number) throws NegativeNumberException {
        if (number < 0) {
            // Throw the custom exception if the number is negative
            throw new NegativeNumberException("Negative numbers are not allowed.");
        }
        return number * number;
    }
}

public class ExceptionExample {
    public static void main(String[] args) {
        int n = 26;
        try {
            int m = n / 0;
        } catch (ArithmeticException e) {
            System.out.println("Exception caught: " + e);
        } finally {
            System.out.println("Any number cannot be divided by zero");
        }
    }
}

public class StringBufferStringBuilderExample{
public static void main(String args[]){
StringBuffer stringBuffer=new StringBuffer("hello");
stringBuffer.append(" ").append("world");
System.out.println("StringBuffer result:" + stringBuffer);
StringBuilder stringBuilder=new StringBuilder();
stringBuilder.append("is").append("awesome");
System.out.println("StringBuilder result:" + stringBuilder);
}
}

public class StringExample {
    public static void main(String[] args) {
        String s = "Hello World!";
        System.out.println("Original string: " + s);
        System.out.println("Length: " + s.length());
        System.out.println("Uppercase: " + s.toUpperCase());
        System.out.println("Lowercase: " + s.toLowerCase());
        System.out.println("Substring from index 7: " + s.substring(7));
        System.out.println("Replace 'o' with 'x': " + s.replace('o', 'x'));
        System.out.println("Contains 'world': " + s.contains("world"));
        System.out.println("Starts with 'Hello': " + s.startsWith("Hello"));
        System.out.println("Index of 'o': " + s.indexOf('o'));
        System.out.println("Last index of 'o': " + s.lastIndexOf('o'));
        System.out.println("Ends with 'ld!': " + s.endsWith("ld!"));
        System.out.println("Character at index 4: " + s.charAt(4));
        System.out.println("Trimmed: " + s.trim());
    }
}

// Interface
interface Printable {
    void print();
}

// Class implementing the interface
class Printer implements Printable {
    @Override
    public void print() {
        System.out.println("Printing...");
    }
}

public class InterfaceExample {
    public static void main(String[] args) {
        // Creating an instance of the class implementing the interface
        Printable printer = new Printer();

        // Using the interface method
        printer.print();
    }
}