Program for finding the greatest number among three numbers.

class greatest {

  public static void main(String args[]) {

    int a,b,c;

    a=Integer.parseInt(args[0]);

    b=Integer.parseInt(args[1]);

    c=Integer.parseInt(args[2]);

    if(a>b&&a>c)

      System.out.println(a+" is greater.");

    else if(b>c)

      System.out.println(b+" is greater.");

    else

      System.out.println(c+" is greater.");

  }

}

OUTPUT:

C:\jdk1.7.0\bin>java greatest 2 3 1

3 is greater.