Hi, friend a sample code for displaying as above is as follows :

public class FloydTriangleExample
 {
      public static void main(String[] args) throws Exception 
       { 
            int k=0;
            System.out.println();
            for(int i = 0; i <5; i++)
             {
                 for(int j = 0; j <i; j++)
                 {
          k = k + 1;
          System.out.print(k%2);
          System.out.print(" ");
      }
    System.out.println("");
             }
        }
  }