How to change a package name in Eclipse?

create a new package, drag and drop the class into it and now you are able to rename the new package

Press Alt+shift+R key and change package name

You can't rename default package since it actually doesn't even exist. All files in default package are actually in src folder.

src--
    |
    MyClass1.java <==== These files are in default package
    MyClass2.java
    |
    org
      |
      mypackage
              |
              MyClass3.java <=== class in org.mypackage package

Just create new package and move your classes within.

First you need to create package:

com.myCompany.executabe (src > right click > new > package).

Follow these steps to move the Java files to your new package.

1. Select the Java files
2. Right click
3. Refactor
4. Move
5. Select your preferred package