Pattern Questions in Java

We see that there are 5 rows and 5 elements in each row.

So we must have an OUTER loop running 5 times to print 5 rows.

In the row, the number is printed times. So we must set a loop for that.

For example, in the third row, 3 is printed 3 times.

After this we NEED an INCREASING sequence to fill for the remaining elements. We run another loop for that.

Here is a Java program which prints the required pattern:

public class Pattern

{

   public static VOID main(String[] ARGS)

   {

       int i,j,k;

       for(i=1;i<=5;i++)   //Outer Loop of i prints 5 rows

       {

           //In the i^th row, we must print the number i, i times

           for(j=1;j<=i;j++)       //j runs from 1 to i

           {

               System.out.print(i+" ");

           }

           //After that we need an increasing sequence to fill for the remaining elements

           for(k=j;k<=5;k++)       //k runs from j to 5

           {

               System.out.print(k+" ");

           }

           System.out.println();       //Printing a new line after each row

       }

   }

}