JDK stands for Java Development Kit, which is a software development environment used to develop Java applications and applets. It is a distribution of Java technology by Oracle Corporation, and it includes software such as Java Virtual Machine, compiler, debugger, performance monitoring tools, and other utilities that are useful for Java programmers.
Main Features of JDK:
- Implements Java Language Specification and Java Virtual Machine Specification
- Provides Standard Edition of Java API
- Includes virtual machine, compiler, performance monitoring tools, debugger, and other development utilities
- Comes with JRE (Java Runtime Environment)
- Available in three different platforms: Standard, Enterprise, and Micro editions
If you want to develop Java-based applications, you will certainly need to install JDK. It is an essential tool for setting up a development environment and crucial for executing Java-based programs.
JDK vs JRE: What is the difference?
JRE (Java Runtime Environment) is a subset of the JDK, which includes only the Java Virtual Machine and other components required to run Java applications. On the other hand, JDK is a superset of JRE and includes additional development tools such as compiler and other utilities needed for Java application development.
Q. Is JDK a free software?
A. Yes, JDK is free to download and use for personal or commercial purposes.
Q. Can I install JDK on any operating system?
A. JDK is available for different platforms such as Windows, MacOS, and Linux, and you can download the version that is compatible with your operating system.
Q. Do I need to install JRE if I already have JDK?
A. No, if you have already installed JDK, then it includes JRE, and you don’t need to install it separately.
JDK (Java Development Kit) is a software development environment used to develop Java applications and applets. It is a critical tool for setting up a development environment and executing Java-based programs. With its virtual machine, compiler, debugger, performance monitoring tools, and other utilities, JDK is an essential tool for Java programmers.