Quiz: Java Control Flow

5 questionsNo time limitPass: 60%+10 XP on first pass

Read input with Scanner, use arithmetic, logical and ternary operators, make decisions with if-else and switch, and repeat with for, while, do-while and for-each.

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Question 1

What does this print?

public class Main {
    public static void main(String[] args) {
        int x = 3;
        int y = x++ + ++x;
        System.out.println(y);
    }
}

7869

Question 2
How many times does a do-while loop run if the condition is false at the start?
01InfiniteDepends on the compiler

Question 3

What does this print?

public class Main {
    public static void main(String[] args) {
        int n = 2;
        switch (n) {
            case 1: System.out.print("one ");
            case 2: System.out.print("two ");
            case 3: System.out.print("three ");
        }
    }
}

twotwo threeone two threethree

Question 4

What does this print?

public class Main {
    public static void main(String[] args) {
        int count = 0;
        for (int i = 0; i < 10; i += 3) {
            count++;
        }
        System.out.println(count);
    }
}

34105

Question 5
Which operator is the ternary operator?
&&? :::->