Go Premium for a chance to win a PS4. Enter to Win


Java JVM Method Invocation

Posted on 2013-02-01
Medium Priority
Last Modified: 2013-02-01
Method Invocation
When the following Java code is run by the JVM, what is the order of method invocation? Assume the class Foo has not been loaded yet.
new Foo().getName();

a) <init>, <clinit>, getName
b) getName, <clinit>, <init>
c) <clinit>, <init>, getName
d) None of the above
Question by:javaagile
  • 3
  • 2
LVL 37

Expert Comment

ID: 38843282
We're not allowed/here to do your homework. Sorry.

Author Comment

ID: 38843351
this is not homework. I need to understand what happens in jvm internally when a method is invoked.
LVL 37

Accepted Solution

zzynx earned 2000 total points
ID: 38843387
Technology Partners: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

LVL 37

Expert Comment

ID: 38843423
Thanx 4 axxepting
LVL 14

Expert Comment

ID: 38844398
Hi javaagile,

This is one of those cases where "try it and see" would have been the best advice anybody could give you. You could have done something like this and found the answer in much less time:

public class Foo
      System.out.println("In <clinit>");

   public Foo()
      System.out.println("In <init>");

   public void getName()
      System.out.println("In getName()");

Open in new window

If you're really interested in learning and using Java, you'll do thousands of little investigations just like this. Best get used to it, if you ask me.

Author Comment

ID: 38845449
Thanks CPColin, I knew this execution order but was not familiar with terms like <clinit> and <init>

Featured Post

Keep up with what's happening at Experts Exchange!

Sign up to receive Decoded, a new monthly digest with product updates, feature release info, continuing education opportunities, and more.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

INTRODUCTION Working with files is a moderately common task in Java.  For most projects hard coding the file names, using parameters in configuration files, or using command-line arguments is sufficient.   However, when your application has vi…
Java functions are among the best things for programmers to work with as Java sites can be very easy to read and prepare. Java especially simplifies many processes in the coding industry as it helps integrate many forms of technology and different d…
Video by: Michael
Viewers learn about how to reduce the potential repetitiveness of coding in main by developing methods to perform specific tasks for their program. Additionally, objects are introduced for the purpose of learning how to call methods in Java. Define …
Viewers will learn about the regular for loop in Java and how to use it. Definition: Break the for loop down into 3 parts: Syntax when using for loops: Example using a for loop:
Suggested Courses

879 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question