generate the two diffrent patterns using iteration in JAVA

Answer

Pattern - Java Code

public class Pattern
{
    public static void main(String args[]) {
        for (int i = 1; i <= 5; i++) {
            for (int j = 1; j <= i; j++) {
                if (j % 2 == 0)
                    System.out.print("# ");
                else
                    System.out.print("* ");
            }
            System.out.println();
        }
    }
}

OUTPUT: