How could I know:WHO IS CALLING ME?

Question

let's assume that, there are three classes: class A , class B and class C.in class C there is one method :println(String msg).And there is one method: method_A in class A,method_B in class B.
class A
&nbsp&nbsp...
&nbsp&nbsp public void method_A()
&nbsp&nbsp {
&nbsp&nbsp&nbsp&nbsp C.println("I am in method_A of classA");
&nbsp&nbsp&nbsp&nbsp ...
&nbsp&nbsp }
class B
&nbsp&nbsp...
&nbsp&nbsp public void method_B()
&nbsp&nbsp {
&nbsp&nbsp&nbsp&nbsp C.println("I am in method_B of classB");
&nbsp&nbsp&nbsp&nbsp ...
&nbsp&nbsp }
class C
&nbsp&nbsp...
&nbsp&nbsp public static void println(String msg)
&nbsp&nbsp {
&nbsp&nbsp&nbsp&nbsp if (DebuggingOn)
&nbsp&nbsp&nbsp&nbsp {
&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp System.out.println("Called from Class:"+getCallerName() );
&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp System.out.println(msg);
&nbsp&nbsp&nbsp&nbsp }
&nbsp&nbsp }
&nbsp&nbsp private String getCallerName()
&nbsp&nbsp {
&nbsp&nbsp //how to implement this?
&nbsp&nbsp }
in class C,when method println(String msg) being executed,how could I know who is calling me(println(String msg))?

Answer 1

I am not sure exactly what you want, is this supposed to be polly morphism so that both classes can be called by class C and they will tell what they are. fi so this code will work
class top {
   public void method();
class A extends top {
   public void method() {
      c.println("I am in method of class A", this);
   public String toString() {
      return " A";
class B extends top {
   public void method() {
      C.println("I am in method of class B", this);
   public String toString() {
      return " B";
class C {
   public static void println(String msg, top t)
     if (DebuggingOn)
       System.out.println("Called from Class:"+ t );
       System.out.println(msg);
}If called from class A will print out "Classed from Class: A" then the message and if called from Class B will print out "Classed from Class: B" then the message