- JDK, JVM, and JRE are all important components of the Java platform.
- Each plays a specific role in the execution of Java programs.
what they are and how they work:
- The JDK is a software development kit used by Java developers to create Java applications.
- It includes all the necessary tools to compile, debug, and run Java code, as well as various libraries and documentation.
- Some tools included in the JDK are the Java compiler (javac), the Java Virtual Machine (JVM), and the Java Archive (JAR) tool.
the same Java code can be run on any device that has a JVM installed.
- The JVM is a virtual machine that runs Java bytecode.
- It is the runtime environment in which Java code is executed.
- The JVM interprets compiled Java code, optimizing it at runtime for better performance.
- It provides a level of abstraction between the Java code and the underlying operating system, making Java programs portable across different platforms.
- The JRE is a subset of the JDK that includes only the Java Virtual Machine and other libraries required to run Java applications.
- It is designed to provide a Java runtime environment for end-users who only need to run Java programs and do not require the development tools included in the JDK.
- The JRE is necessary to run any Java program, and it is usually installed by default on most computers.
- The JDK is a software development kit used by Java developers to create Java applications.
- The JVM is a virtual machine that runs Java bytecode.
- The JRE is a subset of the JDK that includes only the Java Virtual Machine and other libraries required to run Java applications.
- JDK is used for Java development, JRE is used to run Java applications, and JVM is responsible for executing the Java code.
- The JDK includes the JRE, so if you want to develop and run Java applications, you only need to install the JDK.
- However, if you only want to run Java applications, you can install the JRE.