How to get a caller class of a method

Question

How do I know which class called a method?

class A {
   B b = new B();

   public void methodA() {
    Class callerClass = b.getCallerCalss(); // it should b         


        

Answer 1

There's a method of observing the stacktrace

StackTraceElement[] elements = Thread.currentThread().getStackTrace()

Javadoc

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