Pattern Pyramid Program in Java

public class Pattern31
{
    public static void main(String[] args)
    {
        for (int i = 1; i <= 5; i++)
        {
            for (int j = 5 - i; j >= 1; j--)
            {
                System.out.print(" ");
            }
            for (int j = 1; j <= 2 * i - 1; j++)
            {
                System.out.print("*");
            }
            System.out.println();
        }
    }
}

Output:

    *
   ***
  *****
 *******
*********

---

public class Pattern32
{
    public static void main(String[] args)
    {
        for (int i = 1; i <= 5; i++)
        {
            for (int j = 5 - i; j >= 1; j--)
            {
                System.out.print(" ");
            }
            for (int j = 1; j <= 2 * i - 1; j++)
            {
                System.out.print(i);
            }
            System.out.println();
        }
    }
}

Output:

    1
   222
  33333
 4444444
555555555

---

public class Pattern33
{
    public static void main(String[] args)
    {
        for (int i = 1; i <= 5; i++)
        {
            for (int j = 5 - i; j >= 1; j--)
            {
                System.out.print(" ");
            }
            for (int j = 1; j <= i; j++)
            {
                System.out.print(j);
            }
            for (int j = i - 1; j >= 1; j--)
            {
                System.out.print(j);
            }
            System.out.println();
        }
    }
}

Output:

    1
   121
  12321
 1234321
123454321

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