如何在重写toString时使用条件语句

public class MyClass {
    private int value;

    public MyClass(int value) {
        this.value = value;
    }

    @Override
    public String toString() {
        if (value > 0) {
            return "Positive";
        } else if (value < 0) {
            return "Negative";
        } else {
            return "Zero";
        }
    }

    public static void main(String[] args) {
        MyClass obj1 = new MyClass(10);
        MyClass obj2 = new MyClass(-5);
        MyClass obj3 = new MyClass(0);

        System.out.println(obj1.toString()); // 输出：Positive
        System.out.println(obj2.toString()); // 输出：Negative
        System.out.println(obj3.toString()); // 输出：Zero
    }
}