use itb;
create table students(name varchar(50),rollno int,branch varchar(20));
insert into students (name,rollno,branch) values
('niha',90,'it'),
('nishka',95,'it'),
('nishu',96,'it');
JAVA
package jdbc;
import java.sql.*;
public class Simple_Connection {
	Connection conn = null;
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		try {
			Class.forName("com.mysql.cj.jdbc.Driver");
			Connection conn = DriverManager.getConnection("jdbc:mysql://localhost:3306/itb","root","root");
			Statement stmt  = conn.createStatement();
			ResultSet rs=stmt.executeQuery("Select * from students");
			while(rs.next()){
					System.out.println(rs.getString(1)+" "+rs.getInt(2)+" "+rs.getString(3));
			}
			conn.close();
			
		}catch(Exception e) {
			e.printStackTrace();
		}
	}
}