A Java project has an associated Java builder that can incrementally compile Java source files as they are changed.
A Java project also maintains information about the type hierarchy, references and declarations of Java elements. This information is constantly updated as the user changes the Java source code. It is independent of the builder.
You can organize Java projects in two different ways:
Java builder
Refactoring support
Copying and moving Java elements
Creating Java elements
Creating a Java project as its own source
container
Creating a Java project with source folders
Creating a new source folder
Filtering elements
Generating getters and setters
Creating a new Java project