在Java中，有没有一种方法可以退出一个同时退出所有垂直嵌套方法的方法

Question

我正在寻找某种语句或函数，当命中时，它不仅会退出当前方法(方法1(，还会退出当前方法嵌套的所有方法(方法2、3和4(，而不会退出程序(我想在运行时停止(。

我希望有一种替代方法，可以有条件地检查调用(或可能调用(方法1的每个实例。谢谢

import java.awt.EventQueue;
public class ExitTest implements Runnable {
    public static void main(String[] args) {
        EventQueue.invokeLater(new ExitTest());
    }
    @Override
    public void run() {
        method4();
    }
    
    public void method1() {
        System.out.println("I want this line to hit.");
        // Looking for something here that exits all nested methods
    }
    
    public void method2() {
        method1();
        System.out.println("I don't want this line to hit.");
    }
    
    public void method3() {
        method2();
        System.out.println("I don't want this line to hit.");
    }
    
    public void method4() {
        method3();
        System.out.println("I don't want this line to hit.");
    }
}

Answer 1

正如大家所说，您可以在方法1中抛出异常，并在方法4中处理异常，如下所示。

public class Main  {
    public static void main(String[] args) {
        new Main().run();
    }
    public void run() {
        System.out.println("Calling method 4");
        try {
            method4();
        }catch(Exception e){ }
        System.out.println("Return from method 4");
    }
    public void method1() {
        System.out.println("I want this line to hit.");
        throw new RuntimeException();
    }
    public void method2() {
        method1();
        System.out.println("I don't want this line to hit.");
    }
    public void method3() {
        method2();
        System.out.println("I don't want this line to hit.");
    }
    public void method4() {
        method3();
        System.out.println("I don't want this line to hit.");
    }
}