Write a program in Java to display the following pattern:

1   2   3   4   5
6   7   8   9
10 11 12
13 14
15

public class KboatPattern
{
    public void displayPattern() {
        int a = 1;
        for (int i = 5; i > 0; i--) {
            for (int j = 1; j <= i; j++) {
                System.out.print(a++ + "\t");
            }
            System.out.println();
        }
    }
}