JRE stands for Java Runtime Environment. It is primarily part of the Java Development Kit (JDK). It is free so we can easily find it in any software to use in our programs. It includes Java class libraries, specific tools, and many other important tools. JRE can be implemented on any operating system and it works as an outer layer of the operating system. It also includes integration libraries and basic libraries such as Java Database Connectivity (JDBC), Java Naming and Directory Interface (JNDI), Java Management Extensions (JMX), Java Native Interface (JNI), and Java XML Processing (JAX-WS).
Software programs always require a runtime environment that provides access to program files, memory, and other important dependencies. JRE is important for running any program successfully. JAVA also contains two more important components, namely the JAVA development kit and the JAVA virtual machine.
JAVA Development Kit, also known as JDK, is a programming language. It is a set of necessary tools to make the program successful. It can be easily used by downloading or installing JDK from the Internet. It's a free service. It also has other versions to support different dependencies. Download the JDK version that matches the Java application you want to use.
JAVA Virtual Machine is also called JVM and is used in programming languages. It runs the program line by line in the order written by the developer. Developers can easily manage the JVM's settings to see how much time and memory a program is taking up within the application.
JRE is a platform-independent software, we can run our code on any other platform. It combines Java code by using the Java Development Kit with our libraries. It then creates Java virtual memory for the code written by the developer and ultimately successfully runs the code. It works on almost all operating systems.
Features |
JDK |
The Chinese translation of JVM | is: JVM |
JRE |
|---|---|---|---|---|
Full name |
Java Development Kit |
Java Virtual Machine |
Java Runtime Environment |
|
Platform independent |
NO |
Yes |
NO |
|
tool |
Contains tools for development, debugging and monitoring |
Does not include software development tools |
Contains class libraries and other supporting files. |
|
PRIME FUNCTION |
For code execution |
Specify all implementations and be responsible for providing implementations for JRE |
It is responsible for creating an environment for code execution. |
|
Implementation |
JDK=JRE Development Tools |
JVM=Just a running environment for Java bytecode |
JRE= JVM library used to run applications. |
The operating system is executed on top by the Java Runtime Environment (JRE), which provides more Java-specific resources. Due to the interaction between JRE and JDK, Java program files can be executed on any system. JRE uses three main components namely −
We can call pre-written code found in class libraries. They make it easier for developers by providing built-in code. It contains many different types of libraries in the Java programming language. All necessary class files are dynamically loaded into the Java virtual machine through the class loader.
It has a compiler that converts English-like language into computer language, i.e. bytecode, to run the code successfully. It checks whether the code conforms to the correct format.
The Java interpreter runs the program on the underlying machine after passing the bytecode verification.
The Java runtime environment contains many components in addition to the core components of the Java programming language that contribute to the running of the program when it is executed. Some of these components are listed below:
JRE has its own development toolkit designed to help users make their programs more efficient in JAVA. Here are some of those tools:
The Chinese translation ofThis is a Java application programming interface for creating 2D images. By using it, developers can create interfaces for games, animations, special effects, and more.
The Chinese translation ofIt is a lightweight GUI called Swing. It is used to create combinations of elements such as scroll bars, text boxes, buttons, etc. We can easily create graphical user interfaces by using them together.
This is a user-friendly toolkit for making programs more efficient. This is an easy to use toolkit.
Technology that makes software updates easier to distribute to application users is included in the JRE. They also provide assistance with program upgrades. JRE comes with deployment tools when installed. It makes activation of the program easier. Here are some examples of deployments −
The Chinese translation ofJava Web Start helps launch a fully functional application with a single click on your web browser.
Java Plugin allows you to easily run your website in desktop browsers by creating a link between popular browsers and the Java platform.
It contains many important Java class files, called Java packages. It supports version control and monitoring. Some examples of packages are -
It works on improving memory, and maintaining and monitoring data stored in applications.
It allows many users working on the same system to define their own preference groups.
It is used to maintain log reports on security failures, configuration errors, and other technology-related issues.
It is used to reduce file size by bundling large files together and increase search speed and download speed.
It contains many integration libraries that allow developers to create seamless data connections between services and applications. Some commonly used libraries include −
The Chinese translation ofJava IDL stands for Java Interface Definition Language, which is based on the Universal Object Request Broker architecture. It allows interaction with objects on different platforms over the network.
It is used to access remote information, spreadsheets and files
This is a directory service that allows developers to create portable applications that contain information from external resources using naming conventions.
JRE is called Java Runtime Environment. It is considered part of the Java Development Kit. It provides free services to all users. Anyone can easily download it from the internet. It contains many integrations and basic libraries, as well as specific tools to make the program more efficient. It can run on any operating system.
The above is the detailed content of The full form of JRE is Java Runtime Environment. For more information, please follow other related articles on the PHP Chinese website!
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
