OnJava8-Examples/exceptions/WhoCalled.java
2016-12-30 17:23:13 -08:00

40 lines
875 B
Java

// exceptions/WhoCalled.java
// (c)2017 MindView LLC: see Copyright.txt
// We make no guarantees that this code is fit for any purpose.
// Visit http://OnJava8.com 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
*/