Question

Write the program to display the following pattern:

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

Answer 1

public class Q9h
{ public static void main(String ar{])
System.out.println("\n--------------------");
int i, j, p = 1;
for (i = 1; i <= 5; i++)
{ System.out.println();
for(j = 1: j <= i; j++)
System.out.print(p++ + "\t");
}}