Question

1. Exercise 22: Write a program that creates three random double variables a, b, and c and assigns them values between 0 and 1 using the Math.random( ) method mentioned in the preceding exercise. It then does all of the following:

   1. It prints out the three values.

   2. It prints "All are tiny" if all three values are less than 0.5.

   3. Extra: It prints out "One is tiny" if exactly one of the three values is less than 0.5.

   4. Extra: It prints out "Only two are tiny" if exactly two of the three values are less than 0.5.

Extra: it prints if “None is tiny” if none of the values are less than 0.5.

Answer 1

public class ThreeRandom {

    public static void main(String[] args) {
        double a = Math.random(), b = Math.random(), c = Math.random();

        System.out.println("Numbers are " + a + ", " + b + " and " + c);
        if (a < 0.5 && b < 0.5 && c < 0.5) {
            System.out.println("All are tiny");
        } else if((a < 0.5 && b < 0.5) || (b < 0.5 && c < 0.5) || (a < 0.5 && c < 0.5)) {
            System.out.println("Only two are tiny");
        } else if(a < 0.5 || b < 0.5 || c < 0.5) {
            System.out.println("One is tiny");
        } else {
            System.out.println("None is tiny");
        }
    }
}