Questions and Exercises in Loops.

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Mon Apr 19 2021 05:01:45 GMT+0000 (Coordinated Universal Time)

Saved by @ahmedqgqgq #java

import java.util.Scanner;
public class Mohamed {
    public static void main(String[] args) {
        Scanner input = new Scanner(System.in);
        // Write a program to print numbers from 1 to 10.
        for (int i = 1; i < 10; i++) {
            System.out.println(i);
        }
    }
}
import java.util.Scanner;
public class Mohamed {
    public static void main(String[] args) {
        Scanner input = new Scanner(System.in);
        // Write a program to print numbers from 1 to 10.
        int i = 1;
        do {
            System.out.println(i);
            i++;
        } while (i <= 10);
    }
}
import java.util.Scanner;
public class Mohamed {
    public static void main(String[] args) {
        Scanner input = new Scanner(System.in);
        /*
         * Write a program to calculate the sum
         * of 10 floating point numbers using for loop.
         */
        float sum = 0;
        for (int i = 1; i <= 10; i++) {
            sum = sum + i;// sum+=i
        }
        System.out.println("sum==" + sum);
    }
}
import java.util.Scanner;
public class Mohamed {
    public static void main(String[] args) {
        Scanner input = new Scanner(System.in);
        /*
         * Write a program to calculate the sum of 10 floating point numbers using for loop.
         */
        float sum = 0;
        for (int i = 1; i <= 10; i++) {
            sum = sum + i;// sum+=i
        }
        System.out.println("sum==" + sum);
    }
}
import java.util.Scanner;
public class Mohamed {
    public static void main(String[] args) {
        /*
         * write a program to calculate the sum of 10 floating point number.
         */
        Scanner input = new Scanner(System.in);
        float sum = 0, num;
        for (float i = 1; i <= 10; i++) {
            System.out.println("Enter any number:");
            num = input.nextFloat();
            sum = sum + num;
        }
        System.out.println("sum==" + sum);
    }
}
import java.util.Scanner;
public class Mohamed {
    public static void main(String[] args) {
        /*
         * write a program that that asking the user to input a positive integer.It
         * should than print the multiplication table of that number.
         */
        Scanner input = new Scanner(System.in);
        int num = input.nextInt();
        for (int i = 1; i <= 10; i++) {
            System.out.println(num + "*" + i + "=" + (num * i));
        }
    }
}
import java.util.Scanner;
public class Mohamed {
    public static void main(String[] args) {
        /* write a program to find the factorial value of any number */
        // !4=4*3*2*1=24
        // !5=5*4*3*2*1=120
        Scanner input = new Scanner(System.in);
        System.out.println("Enter any number:");
        int num = input.nextInt();
        int f = 1;
        for (int i = num; i >= 1; i--) {
            f = f * i;
        }
        System.out.println("factorial==" + f);
    }
}
import java.util.Scanner;
public class Mohamed {
    public static void main(String[] args) {
        /*
         * Write a program that enters 10 integer number from the user,and then prints
         * the sum of the even and odd integers
         */
        Scanner input = new Scanner(System.in);
        int num, sumEven = 0, sumOdd = 0, i = 0;
        while (i < 10) {
            System.out.println("Enter integer number:");
            num = input.nextInt();
            if (num % 2 == 0) {
                sumEven = sumEven + num;
            } else {
                sumOdd = sumOdd + num;
            }
            i++;
        }
        System.out.println("The sum of Even numbers==" + sumEven);
        System.out.println("The sum of Odd numbers==" + sumOdd);
    }
}
import java.util.Scanner;
public class Mohamed {
    public static void main(String[] args) {
        /*
         * Write a program that enters 10 integer number from the user,and then prints
         * the sum of the even and odd integers
         */
        Scanner input = new Scanner(System.in);
        int num, sumEven = 0, sumOdd = 0, i = 0;
        int countEven = 0, countOdd = 0;
        while (i < 10) {
            System.out.println("Enter integer number:");
            num = input.nextInt();
            if (num % 2 == 0) {
                countEven++;
            } else {
                countOdd++;
            }
            i++;
        }
        System.out.println("The sum of Even numbers==" + countEven);
        System.out.println("The sum of Odd numbers==" + countOdd);
    }
}
import java.util.Scanner;
public class Mohamed {
    public static void main(String[] args) {
        // 1+ 1/2 + 1/3 + 1/4 + 1\5 +.......1/n
        Scanner input = new Scanner(System.in);
        int num = input.nextInt();
        float sum = 0;
        for (int i = 1; i <= num; i++) {
            sum += 1.0 / i;
        }
        System.out.println("sum is=" + sum);
    }
}
import java.util.Scanner;
public class Mohamed {
    public static void main(String[] args) {
        Scanner input = new Scanner(System.in);
        float n, sum = 0.0f;
        for (int i = 1; i <= 10; i++) {
            System.out.println("Enter # " + i + " : ");
            n = input.nextFloat();
            sum += n;
        }
        float avg = sum / 10;
        System.out.println("Avg==" + avg);
    }
}
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