Ways to view JDK source code in eclipse

The problem is that you want to prove that the get () method in the Vector is not a thread-safe method with the synchronized keyword modifier,

So inside Eclipse:

New Vector<> ();

Then select the vector press F3 to see the source code, the results jumped out:

Ok

Direct Click Attach Source

After entering

WorkSpace location is in the workspace, usually for the need to call other self-added jar package when added

External location is the jar package under the external space, for we need to use the JDK, we choose External, can add files can also add folders, but in order to check the JDK later, I directly add the entire folder

OK, this time the source is out,

The Get () method selected to the vector is indeed decorated with the synchronized keyword.

Of course, if you want to modify this path, you can also:

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: "C:\Program Files\java\jre_1.5.0_06\lib\rt.jar"
Point to the left of the "+" sign to expand it,

4. Expand, you can see "source Attachment: (None)", point this item, point to the right of the button "source Attachment ...",

How to view JDK source code in eclipse