How to view the JDK source code under Eclipse

View the source code of the JDK class library in Eclipse!!!

Set up:

1. Point "Window", "Preferences", "Java", "Installed JREs"

2. The right side of "Installed JREs" is the list pane, listing the JRE environment in the system, selecting your JRE, and then clicking "Edit ..." on the edge, a window will appear (edit JRE)

3. Select this entry for the Rt.jar file: source Attachment to the right of the "E:\Java\jdk1.6.0_10\jre\lib\rt.jar" point

4. Select the "src.zip" file in your JDK directory

5. "OK", end.

Dt.jar is a class library about the operating environment, mainly swing packages

Tools.jar is a class library of some tools

Rt.jar contains the base class library of the JDK, which is the class file of all the classes you see in Java doc

Use:

You can select the name of a type, method, or field in the Java source editor or Code Snippet Editing Test window, and then open the editor for the definition of the element.

In the Java editor, select the name of the type, method, or field. You can also just click once in the name.

Perform one of the following actions:

1. You put the mouse cursor on a JDK class and press F3

2. Double-click a JDK class to eject the Javadoc

In the red box, the first button jumps to the class, the second button jumps to the API

How to view the JDK source code under Eclipse