Square Root calculation for given numbers using Java

// Sqrt  program

class ssvsqrt
{
 public static void main(String args[])
 {
     System.out.print("\n\n\n        | ");
        for(double j=0.0;j<=0.9;j+=0.1)
                           if ((j > 0.7) && (j < 0.9)) { j = 0.8;System.out.print(j+"    "); }
               else
        System.out.print(String.valueOf(j).substring(0,3)+"    ");
 System.out.print("\n   -----|---------------------------------------------------------------------");
 System.out.print("\n          \n        | \n    ");
      for(double i=0.0;i<=9.0;i++)
     {   System.out.print(i +  " | ");
        for(double j=0.0;j<=0.9;j+=0.1)
       {
            if ( (Math.sqrt(i+j) == 0.0) ||  (Math.sqrt(i+j) == 1.0)||  (Math.sqrt(i+j) == 2.0)||  (Math.sqrt(i+j) == 3.0))
                System.out.print(Math.sqrt(i+j)+ "    ");
            else
                System.out.print(String.valueOf( Math.sqrt(i+j)).substring(0,4) + "   ");
       }
       System.out.print("\n    " );
                      }
  }
 }