Class exe 2

package Test;
import java.util.Scanner;

public class exe2{

	public static void main(String[] args) {
		// TODO Auto-generated method stub

		Scanner s = new Scanner(System.in);
		int n;


		System.out.println(" Enter a number");
		n = s.nextInt();

		for (int i=1 ;  i<= n; i *=2)   {
			System.out.print( i + " ");
		}
		System.out.println();
	}
}
package Test;
import java.util.Scanner;

public class exe3{

	public static void main(String[] args) {
		// TODO Auto-generated method stub

		Scanner s = new Scanner(System.in);
		int countOdd=0, num;
		for (int counter=0; counter < 10; counter +=1){
			System.out.print(" Enter a number?");
			num = s.nextInt();
			if (!((num % 2) == 0))
			{
				countOdd +=1;

			}
			System.out.printf("total odd: %d",countOdd);
		}

	}
}package Test;
import java.util.Scanner;

public class exe4{

	public static void main(String[] args) {
		// TODO Auto-generated method stub

		Scanner s = new Scanner(System.in);
		int num;

			System.out.print(" Enter a number?");
			num = s.nextInt();

			if (num % 3 == 0)
			{
				System.out.println("The number " +num+ " is an Odd number ");

			} else
			{
			System.out.println(" The number " +num+" is not an Odd number ");
			}
	}
}
package Test;
import java.util.Scanner;

public class exe4{

	public static void main(String[] args) {
		// TODO Auto-generated method stub

		Scanner s = new Scanner(System.in);
		int num, temp;

			System.out.print(" Enter a number?");
			num = s.nextInt();

			for(int i=1; i<= num; i++)

			if (num % 3 == 0)
			{

				temp = num;

			} else
			{
			System.out.println(" The number " +num+" is not an Odd number ");
			}
	}
}
package Test;

import java.util.Scanner;

public class while1 {

	public static void main(String[] args) {
		Scanner s = new Scanner(System.in);
		int num, counter = 0, sum = 0;

		System.out.println("Please enter numbers, -1 to stop:");
		num = s.nextInt();

		while (num != -1) {
			sum += num;
			counter++;
			num = s.nextInt();
		}
		System.out.printf("Average of the %d numbers is %f\n", counter,
				(float) sum / counter);
	}

}
package Test;

import java.util.Scanner;

public class addDigit {

	public static void main(String[] args) {
		Scanner s = new Scanner(System.in);
		int num, sum = 0;

		System.out.print("Please enter a number: ");
		num = s.nextInt();

		while (num != 0) {
			sum += num % 10;
			num /= 10;
		}

		System.out.println("Sum is  " + sum);
	}
}
package Test;

import java.util.Scanner;

public class multiples {

		public static void main(String[] args) {
			Scanner s = new Scanner(System.in);
			int num= 0;
			do {
				System.out.println("Enter a number between 5-10? ");
				num = s.nextInt();
			}while(num < 5 || num >10);
			System.out.printf("%5c", '|');
			for (int i=1; i <=num; i++)
				System.out.printf("%4d|", i);
			System.out.println();

			for (int i =1; i<= num+1; i++)
				System.out.print("-----");
			System.out.println();

			for (int i = 1; i <= num; i++){
				System.out.printf("%4d|", i);
				for (int j=1; j<= num; j++)
					System.out.printf("%4d|", i * j);

				System.out.println();
			}
		}
}