Java Program to find Square Root of a number through Commandline

import java.lang.Math;

class Squareroot
{
     public static void main (String args[])
     {
          float num,sqnum;
          num = Float.valueOf(args[0]).floatValue();
          sqnum = (float)Math.sqrt(num);
          System.out.println("Square Root of "+num+" is "+sqnum);
     }
}    

Output: