public class Ex04Conversion //class and file have same name { public static void main(String[] args) { //widening conversion double x; int y = 10; x = y; System.out.println("x is "+ x); //narrowing conversion int a; double b = 3.33; a = (int)b; System.out.println("a is "+ a); //constant with final final double INTEREST_RATE = 0.069; //INTEREST_RATE = 0.07; //gives error } }