Attach the Java Source Code

Question

I cannot for the life of me attach the java source code to eclipse so I can see the inner workings of the language. Not even something as simple as the String Class.

Answer 1

To attach JDK source so that you refer to Java Source Code for code look-up which helps in learning the library implementation and sometimes in debugging, all you have to do is:

In your Eclipse Java Project > JRE Reference Library locate rt.jar. Right click and go to Properties:

Select "Java Source Attachment" on the right and to the left select "External Location" and click on "External File" Button and locate "src.zip" file in your $JAVA_HOME path in my case for my windows machine src.zip location is: C:/Program Files/Java/jdk1.7.0_45/src.zip.

You are done now! Just Ctrl + click on any Java library Class in your project code to look-up the source code for the java class.