Add JUnit to Java Build Path

1. The first kind

New project, right click, select Properties->java Build path->libraries->add library->junit->junit4->finish

JUnit has two versions: JUnit3 and JUNIT4, select JUNIT4

2. The second type

New project, right click, choose Build Path->add Library->junit->junit4->finish

3. The Third Kind

Create a JUnit Test case directly in this project

After clicking Finish, the dialog box pops up:

Click OK to automatically add JUNIT4 to the Java Build Path

Add JUnit to Java Build Path