Question

Write two separate programs to generate the following patterns using iteration(loop) statements:
(a)

*
* #
* # *
* # * #
* # * # *

(b)
5 4 3 2 1
5 4 3 2
5 4 3
5 4
5

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Code

import java.util.Scanner;

public class Program5A
{
	public static void main(String[] args)
	{
	    int no=0,i=0,j=0;
        Scanner sc = new Scanner(System.in);
		System.out.print("Enter a number: ");
		no = sc.nextInt();
		for (i = 1; i <= no; i++)
		{
			for (j = 1; j <= i; j++)
			{
			    /* if j is even then print '#' else print '*' */
				if (j % 2 == 0)
				{
					System.out.print("# ");
				}
				else
				{
					System.out.print("* ");
				}
			}
			System.out.println();
		}
	}
}

import java.util.Scanner;

public class Program5b
{
	public static void main(String[] args)
	{
	    int no=0,temp=0,i=0,j=0;
		Scanner scanner = new Scanner(System.in);
		System.out.print("Enter number: ");
		no = scanner.nextInt();
		for (i = no; i >= 1; i--)
		{
			temp = no;
			for (j = 1; j <= i; j++)
			{
				System.out.print(temp + " ");
				temp--;
			}
			System.out.println();
		}
	}
}