import java.util.Date;

class hello{
  public static void main (String args[]) {

  int x=123;
  int y=123; 

  final double pi = 3.14159265;
  String str="This is a string";

  Date d1 = new Date();  

     System.out.println("Hello World!");
     System.out.println("The result is   "+ (x+y));
     System.out.println("The constant Pi   "  + pi);
     System.out.println("The date is " + d1);
     System.out.println("The string is " + str);
     System.out.println("The length of the string is " + str.length());
     System.out.println("Upper case " + str.toUpperCase());
     System.out.println("The Character at position 5 of the string is " + str.charAt(5));

  }
}