Q2: Answer
int
[] [] triangle = new int [10][];
for
(int j = 0; j < triangle.length; j++)
triangle[j] = new int [j+1];
for (int i = 0; i < triangle.length; j++)
{
for (int j = 0; j < triangle[i].length; j++)
System.out.println(triangle[i][j] + “ “);
System.out.println();
}