Build Classpath

The build classpath specifies which Java source files and resource files in a project are considered by the Java builder and specifies how to find types outside of the project. The Java builder compiles the Java source files into the output folder and also copies the resources into it. The build classpath is specified for each project. In the project properties, it is referred to as the Java Build Path

Java builder
Classpath variables
Inclusion and exclusion patterns
Access rules Classpath variables preferences
Java build path properties