Question

Write java code to display the following:

4 3 2 1
   3 2 1
      2 1
         1

Answer 1

public class Pattern
{
    public static void main(String[] args)
    {
        for(int i=1;i<=4;i++)       //i does the work of printing 4 rows
        {
            for(int j=1;j<i;j++)    //j prints required spaces before numbers in each row
            {
                System.out.print("  ");
            }
            for(int k=5-i;k>0;k--)  //k prints the numbers in descending order in each row
            {
                System.out.print(k+" ");
            }
            System.out.println();
        }
    }
}