Section 3.14 Check Point Questions4 questions

3.14.1

Suppose that, when you run the following program, you enter the input 2 3 6 from the console. What is the output?

public class Test {
  public static void main(String[] args) {
    java.util.Scanner input = new java.util.Scanner(System.in);
    double x = input.nextDouble();
    double y = input.nextDouble();
    double z = input.nextDouble();

    System.out.println((x < y && y < z) ? 
      "sorted" : "not sorted");
  }
}

3.14.2

Rewrite the following if statements using the conditional operator.

if (ages >= 16)
  ticketPrice = 20;
else 
  ticketPrice = 10;

3.14.3

Rewrite the following conditional expressions using if-else statements.

(a) score = (x > 10) ? 3 * scale : 4 * scale; 
(b) tax = (income > 10000) ? income * 0.2 : income * 0.17 + 1000; 
(c) System.out.println((number % 3 == 0) ? i : j);

3.14.4

Write conditional expression that returns -1 or 1 randomly.