class simple {
    public static void main(String args[]){
	double angle=3.14285714/4, foo, foo2;
      	foo = Math.sin(angle);
	foo2 = Math.sqrt(4);
      	System.out.println("\n Hello World! I also computed Sin (Pi/4) to be: " +
	foo + " and Square Root (4) to be: " + foo2 + "\n");
    }
}