面试题 排错

题目一

public class Something {
	public int addOne(final int x) {
		return ++x;
		// return x + 1;
	}
}

题目二
public class Something {
	public static void main(String[] args) {
		Other o = new Other();
		new Something().addOne(o);
	}
	public void addOne(final Other o) {
		// o = new Other();
		o.i++;
	}
}
class Other {
	public int i;
}