Checking from method for what method called it

Question

Say, I have some Java code

public static void method1(){
...//method body
method2();
}
public static void method2(){
...//method body
}

I want method2 to be able to know, as a String, what method called it. For example, in this case, if method1 were run, calling method2, method2 could print out that it was called from method1.

Thanks in advance!

Why do you want do to this, what are you trying to do? – Boris the Spider Aug 02 '13 at 14:58 — Boris the Spider, Aug 02 '13 at 14:58
Thread.currentThread().getStackTrace(). – nachokk Aug 02 '13 at 15:00 — nachokk, Aug 02 '13 at 15:00

score 4 · Answer 1 · answered Aug 02 '13 at 15:00

4

StackTraceElement[] ste = Thread.currentThread().getStackTrace();

The last element of the array represents the bottom of the stack, which is the least recent method invocation in the sequence.

answered Aug 02 '13 at 15:00

D.R.

20,268
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score 0 · Answer 2 · answered Aug 02 '13 at 15:04

0

StackTraceElement[] stackElements = Thread.currentThread().getStackTrace();
System.out.println(stackElements[1].getMethodName());

You might have to check which index you want.

answered Aug 02 '13 at 15:04

Sajal Dutta

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score 0 · Answer 3 · answered Aug 02 '13 at 15:04

I think you need something like that:

public class App
{   
    static public void main(String[] args) {
        secondMethod();
    }   

    public static void secondMethod() {
        StackTraceElement[] ste = Thread.currentThread().getStackTrace();
        System.out.println(ste[ste.length-1]);          
    }
}

score 0 · Answer 4 · answered Aug 02 '13 at 15:07

Try this

public class TestClass {
    public static void main(String... args) {
        m1();
    }

    static void m1() {
        m2();
    }

    static void m2() {
        StackTraceElement[] stackTrace = Thread.currentThread().getStackTrace();
        System.out.println(stackTrace[2].getMethodName());
    }
}

Checking from method for what method called it

4 Answers4