Adding the source code to eclipse does not showing .java files

Question

I have attached the source code of rt.jar file ie src.zip to my Eclipse.

My problem is that, After adding the source code of rt.jar to eclipse, when I open any class,for Example "String" class, The eclipse itself showing ".class" file for "String" only,It does nopt showing ".java" file for "String".

How can I see the ".java" file?

I think showing .class is fine. However the .class file should have the source attachment, and it should show the source code contents. — sakura, Feb 20 '14 at 13:42

score 0 · Answer 1 · answered Feb 20 '14 at 13:41

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The source file is exactly that, the source file. You are reading the files in the .jar. Adding the source is not a magical way in which you can edit the .jar. If you could change the underlying Java source code it would be one of the biggest security risks. The .class file is a representation of the .java file and as such there is also no reason for you to need the .java file.

answered Feb 20 '14 at 13:41

Nicky Tellekamp

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Can I debug in the .class file. – reddy Feb 20 '14 at 13:48
No but you could create a test class that calls the class and debug like that. Again you would be debugging the Java source, so unless you found a bug and want to submit it to Oracle, you probably better off checking your own code if you are running into trouble. – Nicky Tellekamp Feb 20 '14 at 13:56
So finally .class file is only visible but not .java file if we attach source code right. – reddy Feb 20 '14 at 14:02
Is it possible to view the .java file in eclipse? – reddy Feb 20 '14 at 14:02
No but you could copy the contents of the .class file into your own .java file. – Nicky Tellekamp Feb 20 '14 at 14:06
k.When we debug that class file with our test class,can we see the variable values in that .class file? – reddy Feb 20 '14 at 14:26
Yes if you use the debugger and go into say String.equalTo(Object o) method you will see the .class file and var values. – Nicky Tellekamp Feb 20 '14 at 16:22

score 0 · Answer 2 · answered Feb 20 '14 at 14:39

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Did you try to attach the source code, as shown in the below screen shot.

enter image description here

answered Feb 20 '14 at 14:39

Jay

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Adding the source code to eclipse does not showing .java files

2 Answers2