#370 Pass-by-Value in Method Parameters

Companies:

Aston

Themes:

JavaJava BasicsCode Review

What will be printed?

class Exercise1 {
    public static void main(String[] args) {
        int int1 = 4;
        Integer integer = 9;
        User user = new User(18);

        inc(int1);
        inc(integer);
        inc(user);

        System.out.println(int1);
        System.out.println(integer);
        System.out.println(user.age);
    }

    private static void inc(int a) {
        a++;
    }

    private static void inc(Integer a) {
        a++;
    }

    private static void inc(User a) {
        a.age++;
    }
}

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