// $final$ -- makes a variable constant -> unchangeable
// Once a $final$ variable is assigned, it cannot be reassigned!
// Often used in conjunction with $static$ -- see Math.PI

public class final0 {
    public static void main(String[] args) {
	
	final int k = 100;
	
	System.out.println(k);
	
	// k = 200; // this line will cause problems!

    }

}