What are the components of JDK?

It is a core package used in Java, along with the JVM (Java Virtual Machine) and the JRE (Java Runtime Environment).

A component is an object having a graphical representation that can be displayed on the screen and that can interact with the user . Examples of components are the buttons, checkboxes, and scrollbars of a typical graphical user interface.

There are three major components of class in Java.