OnJava8-Examples/exceptions/WhoCalled.java

// exceptions/WhoCalled.java
// (c)2016 MindView LLC: see Copyright.txt
// We make no guarantees that this code is fit for any purpose.
// Visit http://mindviewinc.com/Books/OnJava/ for more book information.
// Programmatic access to stack trace information.

public class WhoCalled {
  static void f() {
    // Generate an exception to fill in the stack trace
    try {
      throw new Exception();
    } catch (Exception e) {
      for(StackTraceElement ste : e.getStackTrace())
        System.out.println(ste.getMethodName());
    }
  }
  static void g() { f(); }
  static void h() { g(); }
  public static void main(String[] args) {
    f();
    System.out.println("--------------------------------");
    g();
    System.out.println("--------------------------------");
    h();
  }
}
/* Output:
f
main
--------------------------------
f
g
main
--------------------------------
f
g
h
main
*/