Java Finalize 方法不调用

Question

<分区>

Answer 1

System.gc() 仅请求收集，不保证垃圾收集。

此外，finalize 方法是为其对象被垃圾收集的类调用的，这在您的场景中不是这种情况。

请在下面找到更新的代码和输出:

class Test123 {
    Test123() {
        System.out.println("Inside the constructor");
    }

    @Override
    protected void finalize() throws Throwable {
        System.out.println("Garbage collector called");
        System.out.println("Object garbage collected : " + this);
    }
}

public class Finalizemerthd {
    public static void main(String args[]) {
        Test123 obj1 = new Test123();
        obj1 = null;
        System.gc();
    }
}

输出:

Inside the constructor
Garbage collector called
Object garbage collected : MyGenerator.Test123@11adfb87