Practice›Java Fundamentals›Module 4. Classes & Objects›4.1 Objects and fields

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4.1 Objects and fields — double the size

Total: 0 / 3 pts

Practice mode — check each part and get hints as you go.

Task

Fill in doubleSize so that it changes the box: its size field becomes twice as large. The method returns nothing.

The program prints 10 — the change survives after the method ends, because the object is shared.

Your solution

class Box {
    int size;

}

public class Main {

    public static void doubleSize(Box b) {
        // double the size field of b

    }

    public static void main(String[] args) {
        Box b = new Box();
        b.size = 5;
        doubleSize(b);
        System.out.println(b.size);
    }
}

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