How can I increment a variable without exceeding a maximum value?

Question

I am working on a simple video game program for school and I have created a method where the player gets 15 health points if that method is called. I have to keep the health at

Answer 1

I think an idiomatic, object oriented way of doing this is to have a setHealth on the Character class. The implementation of that method will look like this:

public void setHealth(int newValue) {
    health = Math.max(0, Math.min(100, newValue))
}

This prevents the health from going below 0 or higher than 100, regardless of what you set it to.

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Your getHealed() implementation can just be this:

public void getHealed() {
    setHealth(getHealth() + 15);
}

Whether it makes sense for the Character to have-a getHealed() method is an exercise left up to the reader :)