Java class file

Executable Java file format

A Java class file is a file containing Java bytecode that can be executed on the Java Virtual Machine (JVM). A Java class file is usually produced by a Java compiler from Java programming language source files containing Java classes. If a source file has more than one class, each class is compiled into a separate class file. Thus, it is called a .class file because it contains the bytecode for a single class.

This keyword could refer to multiple things. Here are some suggestions: