Basic difference between jdk,jre,jvm in advance java course
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Java Virtual Machine (JVM), Difference JDK, JRE & JVM
Previously we had begin with Java Tutorial beginners guide featuring – What is Java , features of Java Programming Language , Java editors and different Java editions and Java Application Types . Now on Java tutorial we begin with the section 2 that is about JVM – Java Virtual Machine . And also about the difference between JDK Vs JRE Vs JVM including other aspects of Java Virtual Machine .
https://maccablo.com/java-virtual-machine-jdk-jre-jvm/
JDK,JRE,JVM
The Java Virtual Machine (JVM) is an abstract computing machine that provides a platform-independent way of executing Java code. The Java Runtime Environment (JRE) is an implementation of the JVM that contains the JVM, class libraries, and other supporting files needed to run Java programs but lacks development tools. The Java Development Kit (JDK) contains the JRE as well as development tools like compilers and debuggers that are necessary for writing Java programs but not for simply running existing programs.
QSpiders - Jdk Jvm Jre and Jit
JDK stand for java development kit.
JVM stands for Java Virtual Machine.
JRE is the responsible unit to run the java program.
JIT stands for Just In Time compiler.
Jdk,jre,jvm
The JDK contains the JRE plus development tools like the javac compiler and java runtime. The JRE contains libraries and files used by the JVM at runtime. The JVM provides the runtime environment to execute bytecode and allows Java to be platform independent, though the JVM itself is operating system dependent.
JVM
This document provides an overview of the Java Virtual Machine (JVM) and how it executes Java code. It describes that the JVM converts Java bytecode into machine language and executes it, allowing Java programs to run on different platforms. It also outlines the key components of the JVM, including the class loader, execution engine, stack, method area, and garbage collected heap.
Java virtual machine
Introduction to Java Virtual Machine. JVM Architecture and basics related to Java Virtual Machine. Relation among JVM, JDK and JRE.
Java-java virtual machine
Java is a programming language that compiles code to bytecode that runs on a Java Virtual Machine (JVM). The JVM is an abstraction layer that executes bytecode similarly across operating systems. It includes components like the bytecode verifier, class loader, execution engine, garbage collector, and security manager. The JVM allows Java to be platform independent and "write once, run anywhere".
JAVA ENVIRONMENT
These Slides are Represent the overall Chapter of Java Environment. It includes Architecture of JVM, JRE, JDK. Uses Types for JVM also included.
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Java Virtual Machine (JVM), Difference JDK, JRE & JVM
Previously we had begin with Java Tutorial beginners guide featuring – What is Java , features of Java Programming Language , Java editors and different Java editions and Java Application Types . Now on Java tutorial we begin with the section 2 that is about JVM – Java Virtual Machine . And also about the difference between JDK Vs JRE Vs JVM including other aspects of Java Virtual Machine .
https://maccablo.com/java-virtual-machine-jdk-jre-jvm/
JDK,JRE,JVM
The Java Virtual Machine (JVM) is an abstract computing machine that provides a platform-independent way of executing Java code. The Java Runtime Environment (JRE) is an implementation of the JVM that contains the JVM, class libraries, and other supporting files needed to run Java programs but lacks development tools. The Java Development Kit (JDK) contains the JRE as well as development tools like compilers and debuggers that are necessary for writing Java programs but not for simply running existing programs.
QSpiders - Jdk Jvm Jre and Jit
JDK stand for java development kit.
JVM stands for Java Virtual Machine.
JRE is the responsible unit to run the java program.
JIT stands for Just In Time compiler.
Jdk,jre,jvm
The JDK contains the JRE plus development tools like the javac compiler and java runtime. The JRE contains libraries and files used by the JVM at runtime. The JVM provides the runtime environment to execute bytecode and allows Java to be platform independent, though the JVM itself is operating system dependent.
JVM
This document provides an overview of the Java Virtual Machine (JVM) and how it executes Java code. It describes that the JVM converts Java bytecode into machine language and executes it, allowing Java programs to run on different platforms. It also outlines the key components of the JVM, including the class loader, execution engine, stack, method area, and garbage collected heap.
Java virtual machine
Introduction to Java Virtual Machine. JVM Architecture and basics related to Java Virtual Machine. Relation among JVM, JDK and JRE.
Java-java virtual machine
Java is a programming language that compiles code to bytecode that runs on a Java Virtual Machine (JVM). The JVM is an abstraction layer that executes bytecode similarly across operating systems. It includes components like the bytecode verifier, class loader, execution engine, garbage collector, and security manager. The JVM allows Java to be platform independent and "write once, run anywhere".
JAVA ENVIRONMENT
These Slides are Represent the overall Chapter of Java Environment. It includes Architecture of JVM, JRE, JDK. Uses Types for JVM also included.
Java virtual machine
The document discusses Java virtual machines and how Java code is executed. It defines a virtual machine as an abstraction layer that allows programs to interact with different operating systems. It then describes how the Java virtual machine works, executing Java bytecode and allowing code to run on any platform. It outlines the components of the JVM, including the class loader, execution engine, and garbage collector.
Java Virtual Machine - Internal Architecture
Objective of this article is to share internal architecture details of Java Virtual Machine. Focuses on:
- How many component does JVM has?
- How these component are integrated?
- How processing takes place at run time for classes?
JVM- Java Virtual Machine
The document discusses the Java Virtual Machine (JVM) and its class loading process. It explains that the JVM loads class files and stores their information in the method area, while instantiated objects are stored in the heap. It also describes the class loader subsystem, noting that it performs loading, linking, and initialization of classes. The linking process consists of verification, preparation, and resolution steps. Finally, it provides a diagram of the class loading process.
JRE , JDK and platform independent nature of JAVA
Java programming language was originally developed by Sun Microsystems which was initiated by James Gosling and released in 1995 as core component of Sun Microsystems.
JRE stands for Java Runtime Environment which is used to provide an environment at runtime.
JVM or Java Virtual Machine is the medium which compiles Java code to bytecode which gets interpreted on a different machine and hence it makes it Platform/ Operating system independent.
JDK (Java SE Development Kit) Includes a complete JRE (Java Runtime Environment) plus tools for developing, debugging, and monitoring Java applications.
QSpiders - Memory (JVM architecture)
The JVM architecture has four main memory areas:
1. The method area stores all class files and instance methods.
2. The stack region executes methods and stores local variables.
3. The heap area stores all objects and static variables.
4. The native method area stores code for native languages like C and C++.
Java virtual machine
A Java virtual machine (JVM) is an abstract computing machine. There are three notions of the JVM: specification, implementation, and instance.
Jvm Architecture
This document discusses Java garbage collection. It describes the serial, parallel, and concurrent collectors. The serial collector uses one thread for garbage collection while the parallel collector performs minor collections in parallel. Concurrent collectors like CMS and G1 perform most work concurrently to minimize pauses. The document also discusses selecting collectors based on data size, performance priorities, and pause time requirements. It notes young generation collectors like Copy and PS Scavenge as well as old generation collectors like MarkSweepCompact and ConcurrentMarkSweep.
Java Virtual Machine
This ppt will give you all necessary details about java virtual machine in brief.Its history,specifications and working all are explained.
Architecture diagram of jvm
The document discusses the architecture of the Java Virtual Machine (JVM). It explains that Java code is first compiled to bytecode, which is then converted to native machine code by the JIT compiler and loaded into memory segments by the class loader for execution. The JVM handles tasks like memory management, execution, and exception handling through various modules that interface with the underlying operating system and hardware platform.
Java byte code presentation
The document discusses Java programming language and Java virtual machine (JVM). It states that Java code is compiled into bytecode that can run on any JVM, allowing cross-platform portability. The JVM provides a runtime environment and executes bytecode through its components: the bytecode verifier checks for errors, the class loader loads Java classes, the execution engine interprets bytecode into machine code, the garbage collector automatically frees unused memory, and the security manager monitors for security violations.
Java Virtual Machine
The Java Virtual Machine (JVM) provides platform independence by abstracting differences between operating systems and CPU architectures. It allows Java code to run on any system that has a JVM installed. The JVM acts as an abstraction layer between Java applications and the underlying platform, interpreting Java bytecode instructions. This makes Java highly portable and allows programmers to "write once, run anywhere".
Java architecture
The document discusses the architecture of Java, which combines compilation and interpretation. It describes how Java code is first compiled into bytecode, then executed by the Java Virtual Machine (JVM), which interprets the bytecode and compiles it into machine code to be executed by the operating system. The main components of the Java architecture are the JVM, JRE, and JDK. The JVM provides an environment to execute Java programs and interprets bytecode into machine code so that Java programs can run on any system.
Jvm
This document provides an introduction to the Java Virtual Machine (JVM). It defines the JVM as a software layer that resembles hardware and converts Java bytecode into machine language. It explains that the JVM allows Java programs to run on any device that supports a JVM. It also introduces the Java Runtime Environment (JRE), which implements the JVM, and the Java Development Kit (JDK), which includes the JRE plus development tools. Finally, it briefly discusses just-in-time (JIT) compilation, where the JVM compiles bytecode sections with similar functionality together to improve performance.
Java JVM
Introduction to Java program. Hello World.java. Java Virtual Machine Architecture and how it is working. JVM class loader, Run time Memory, and Execution Engine.
JVM
The document discusses key aspects of the Java Virtual Machine (JVM) including:
1) The JVM interprets bytecode and needs to be implemented on each platform to provide portability and security.
2) The JVM defines runtime data areas like the heap, method area, and stacks that are used during program execution.
3) Class loading involves reading class files, storing type information, and linking which includes verification, preparation, and resolution of symbolic references.
4) Initialization sets class variables to default values and instance variables when objects are created. Constructors are processed by initializing parameters, invoking parent constructors, and initializing variables.
Java Class 2
The Java SDK comes in three versions for different platforms and purposes. It includes command line compilation and execution tools like javac and java but is not an IDE. Many IDEs are available both open source and commercial that provide integrated environments for Java development. The Java code lifecycle involves compiling Java source code to bytecode, verifying and interpreting the bytecode at runtime with the help of various runtime components like the classloader and JVM.
Java introduction with JVM architecture
Java is a general-purpose, object-oriented programming language that is designed to be platform independent and "write once, run anywhere". It uses a bytecode that is executed by a Java Virtual Machine (JVM) available for most operating systems, allowing code to run on different platforms without recompilation. Java code is compiled into bytecode, then executed by the JVM rather than directly by the native hardware and operating system, making it portable. The Java language has advantages of being simple, secure, portable, object-oriented, robust, multithreaded, architecture-neutral, interpreted and high performance.
Java Class1
Java was originally developed at Sun Microsystems in the early 1990s as an object-oriented programming language intended for use in embedded systems. It was designed to be portable, meaning that code written in Java could run on any platform with a Java Virtual Machine (JVM). The JVM allows Java code to execute in a platform-independent manner, as it compiles Java code to bytecode that is then interpreted by the JVM rather than generating native machine code. This makes Java well-suited for distributed computing over networks.
Features of JAVA Programming Language.
Here I List out All Features of Java with the Brief Explanation. also many Features are Described with the Pictures.
Learn Java Part 1
Introduction to Java, Principles, Versions, JDK, Java Compilation Process, Java
Is Platform Independent, Java as Platform
Internal working JVM
The document discusses the differences between JDK, JRE, and JVM. It states that JDK includes development tools like compilers and debuggers, while JRE only allows running Java programs and does not include development tools. JVM is contained within both JDK and JRE and is responsible for executing Java programs line by line. The document then discusses the internal working of JVM, stating that it behaves as a runtime engine and calls the main method. When a Java program runs, the class files are loaded by the class loader and the bytecodes are saved in the method area. The JVM then produces class objects and uses the stack and registers to execute instructions.
java intro.pptx
Java is a general-purpose, class-based, object-oriented programming language that is designed to be portable and deliver high performance. It achieves portability by compiling Java code to bytecode that runs on the Java Virtual Machine (JVM) which is available for many hardware and software platforms. Key features of Java include being write once, run anywhere, object-oriented, platform independent, simple, secure, robust, multithreaded, and dynamic. Java applications can run on desktops, servers, mobile devices, and other platforms.
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Java virtual machine
The document discusses Java virtual machines and how Java code is executed. It defines a virtual machine as an abstraction layer that allows programs to interact with different operating systems. It then describes how the Java virtual machine works, executing Java bytecode and allowing code to run on any platform. It outlines the components of the JVM, including the class loader, execution engine, and garbage collector.
Java Virtual Machine - Internal Architecture
Objective of this article is to share internal architecture details of Java Virtual Machine. Focuses on:
- How many component does JVM has?
- How these component are integrated?
- How processing takes place at run time for classes?
JVM- Java Virtual Machine
The document discusses the Java Virtual Machine (JVM) and its class loading process. It explains that the JVM loads class files and stores their information in the method area, while instantiated objects are stored in the heap. It also describes the class loader subsystem, noting that it performs loading, linking, and initialization of classes. The linking process consists of verification, preparation, and resolution steps. Finally, it provides a diagram of the class loading process.
JRE , JDK and platform independent nature of JAVA
Java programming language was originally developed by Sun Microsystems which was initiated by James Gosling and released in 1995 as core component of Sun Microsystems.
JRE stands for Java Runtime Environment which is used to provide an environment at runtime.
JVM or Java Virtual Machine is the medium which compiles Java code to bytecode which gets interpreted on a different machine and hence it makes it Platform/ Operating system independent.
JDK (Java SE Development Kit) Includes a complete JRE (Java Runtime Environment) plus tools for developing, debugging, and monitoring Java applications.
QSpiders - Memory (JVM architecture)
The JVM architecture has four main memory areas:
1. The method area stores all class files and instance methods.
2. The stack region executes methods and stores local variables.
3. The heap area stores all objects and static variables.
4. The native method area stores code for native languages like C and C++.
Java virtual machine
A Java virtual machine (JVM) is an abstract computing machine. There are three notions of the JVM: specification, implementation, and instance.
Jvm Architecture
This document discusses Java garbage collection. It describes the serial, parallel, and concurrent collectors. The serial collector uses one thread for garbage collection while the parallel collector performs minor collections in parallel. Concurrent collectors like CMS and G1 perform most work concurrently to minimize pauses. The document also discusses selecting collectors based on data size, performance priorities, and pause time requirements. It notes young generation collectors like Copy and PS Scavenge as well as old generation collectors like MarkSweepCompact and ConcurrentMarkSweep.
Java Virtual Machine
This ppt will give you all necessary details about java virtual machine in brief.Its history,specifications and working all are explained.
Architecture diagram of jvm
The document discusses the architecture of the Java Virtual Machine (JVM). It explains that Java code is first compiled to bytecode, which is then converted to native machine code by the JIT compiler and loaded into memory segments by the class loader for execution. The JVM handles tasks like memory management, execution, and exception handling through various modules that interface with the underlying operating system and hardware platform.
Java byte code presentation
The document discusses Java programming language and Java virtual machine (JVM). It states that Java code is compiled into bytecode that can run on any JVM, allowing cross-platform portability. The JVM provides a runtime environment and executes bytecode through its components: the bytecode verifier checks for errors, the class loader loads Java classes, the execution engine interprets bytecode into machine code, the garbage collector automatically frees unused memory, and the security manager monitors for security violations.
Java Virtual Machine
The Java Virtual Machine (JVM) provides platform independence by abstracting differences between operating systems and CPU architectures. It allows Java code to run on any system that has a JVM installed. The JVM acts as an abstraction layer between Java applications and the underlying platform, interpreting Java bytecode instructions. This makes Java highly portable and allows programmers to "write once, run anywhere".
Java architecture
The document discusses the architecture of Java, which combines compilation and interpretation. It describes how Java code is first compiled into bytecode, then executed by the Java Virtual Machine (JVM), which interprets the bytecode and compiles it into machine code to be executed by the operating system. The main components of the Java architecture are the JVM, JRE, and JDK. The JVM provides an environment to execute Java programs and interprets bytecode into machine code so that Java programs can run on any system.
Jvm
This document provides an introduction to the Java Virtual Machine (JVM). It defines the JVM as a software layer that resembles hardware and converts Java bytecode into machine language. It explains that the JVM allows Java programs to run on any device that supports a JVM. It also introduces the Java Runtime Environment (JRE), which implements the JVM, and the Java Development Kit (JDK), which includes the JRE plus development tools. Finally, it briefly discusses just-in-time (JIT) compilation, where the JVM compiles bytecode sections with similar functionality together to improve performance.
Java JVM
Introduction to Java program. Hello World.java. Java Virtual Machine Architecture and how it is working. JVM class loader, Run time Memory, and Execution Engine.
JVM
The document discusses key aspects of the Java Virtual Machine (JVM) including:
1) The JVM interprets bytecode and needs to be implemented on each platform to provide portability and security.
2) The JVM defines runtime data areas like the heap, method area, and stacks that are used during program execution.
3) Class loading involves reading class files, storing type information, and linking which includes verification, preparation, and resolution of symbolic references.
4) Initialization sets class variables to default values and instance variables when objects are created. Constructors are processed by initializing parameters, invoking parent constructors, and initializing variables.
Java Class 2
The Java SDK comes in three versions for different platforms and purposes. It includes command line compilation and execution tools like javac and java but is not an IDE. Many IDEs are available both open source and commercial that provide integrated environments for Java development. The Java code lifecycle involves compiling Java source code to bytecode, verifying and interpreting the bytecode at runtime with the help of various runtime components like the classloader and JVM.
Java introduction with JVM architecture
Java is a general-purpose, object-oriented programming language that is designed to be platform independent and "write once, run anywhere". It uses a bytecode that is executed by a Java Virtual Machine (JVM) available for most operating systems, allowing code to run on different platforms without recompilation. Java code is compiled into bytecode, then executed by the JVM rather than directly by the native hardware and operating system, making it portable. The Java language has advantages of being simple, secure, portable, object-oriented, robust, multithreaded, architecture-neutral, interpreted and high performance.
Java Class1
Java was originally developed at Sun Microsystems in the early 1990s as an object-oriented programming language intended for use in embedded systems. It was designed to be portable, meaning that code written in Java could run on any platform with a Java Virtual Machine (JVM). The JVM allows Java code to execute in a platform-independent manner, as it compiles Java code to bytecode that is then interpreted by the JVM rather than generating native machine code. This makes Java well-suited for distributed computing over networks.
Features of JAVA Programming Language.
Here I List out All Features of Java with the Brief Explanation. also many Features are Described with the Pictures.
Learn Java Part 1
Introduction to Java, Principles, Versions, JDK, Java Compilation Process, Java
Is Platform Independent, Java as Platform
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The document discusses the differences between JDK, JRE, and JVM. It states that JDK includes development tools like compilers and debuggers, while JRE only allows running Java programs and does not include development tools. JVM is contained within both JDK and JRE and is responsible for executing Java programs line by line. The document then discusses the internal working of JVM, stating that it behaves as a runtime engine and calls the main method. When a Java program runs, the class files are loaded by the class loader and the bytecodes are saved in the method area. The JVM then produces class objects and uses the stack and registers to execute instructions.
java intro.pptx
Java is a general-purpose, class-based, object-oriented programming language that is designed to be portable and deliver high performance. It achieves portability by compiling Java code to bytecode that runs on the Java Virtual Machine (JVM) which is available for many hardware and software platforms. Key features of Java include being write once, run anywhere, object-oriented, platform independent, simple, secure, robust, multithreaded, and dynamic. Java applications can run on desktops, servers, mobile devices, and other platforms.
Java JDK.docx
The document discusses Java JDK, JRE, and JVM. It explains that:
1) A Java program is first written, then compiled into bytecode, and executed by the JVM on any platform.
2) The JVM is a specification implemented by vendors like Oracle that executes Java bytecode. It uses just-in-time compilation and garbage collection for performance.
3) The JRE contains the JVM and libraries needed to run Java applications. It must be installed to execute Java programs on a system.
4) The JDK contains the JRE plus development tools like compilers and debuggers needed to create Java applications.
Java programming(unit 1)
This document provides an overview of key Java concepts and technologies. It discusses Java's main characteristics including being simple, object-oriented, portable, platform independent, robust, and secure. It then outlines several Java platforms (J2SE, J2E, J2ME), tools (JDK, JRE), virtual machines (JVM, Java HotSpot), and common APIs and technologies used in Java development.
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The document discusses the internal details of running a Java program. It explains that at compile time, the Java compiler converts Java code into bytecode. At runtime, the classloader loads the bytecode and the bytecode verifier checks for illegal code before the interpreter executes the instructions. It then addresses some questions about naming Java files and having multiple classes in a file. Finally, it defines the JVM, JRE, and JDK, explaining that the JVM executes bytecode, the JRE provides the runtime environment, and the JDK contains the JRE plus development tools.
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This document provides an overview of key Java programming concepts including data types, classes, inheritance, polymorphism, and the Java architecture. It discusses how Java code is compiled to bytecode and executed by the Java Virtual Machine (JVM) independently of hardware or operating systems, making Java programs platform independent. It also describes the Java Runtime Environment (JRE) and Java Development Kit (JDK) and their roles in developing and running Java applications.
Java -lec-1
Java is an object-oriented programming language that is platform independent. It compiles to bytecode that runs on a Java Virtual Machine (JVM) available for most operating systems. Key features of Java include being object-oriented, compiled and interpreted, platform independent, distributed, multi-threaded, dynamic, and robust/secure. The Java Development Kit (JDK) includes tools like compilers while the Java Runtime Environment (JRE) contains libraries and the JVM needed to run Java applications. Integrated development environments (IDEs) provide tools to write and test Java code.
Jvm
The document discusses the Java Development Kit (JDK), Java Runtime Environment (JRE), and Java Virtual Machine (JVM). The JDK contains tools needed to develop Java programs like compilers and allows programs to run. The JRE includes the JVM and Java class libraries, and is needed to run Java programs. The JVM interprets Java bytecode from compiled .class files into machine code that can be executed by different operating systems and hardware. It loads classes and interfaces, executes methods, and manages a method area for class data and heap area for objects using shared memory across threads.
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Basics of java
Java was created in 1991 at Sun Microsystems by James Gosling and others. It derives its syntax from C and object-oriented features from C++. Java is portable, secure, object-oriented, robust, multithreaded, architecture neutral, distributed, and dynamic. The Java Virtual Machine (JVM) executes Java bytecode, which is platform independent. The Java Development Kit (JDK) includes tools for developing Java programs like the compiler and JRE. The JRE provides the minimum requirements to run Java programs and includes the JVM and core classes. A simple "Hello World" Java program is presented.
Java - At a glance
This document provides an overview of the Java programming language. It discusses that Java is an object-oriented language created by James Gosling in 1991. It then lists the major versions of Java and describes some of its key features like being platform independent, secure, robust and portable. The document also provides brief explanations of Java concepts like the Java Virtual Machine, Java Runtime Environment and Java Development Kit.
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Java is an object-oriented programming language that is platform independent, meaning code can run on any system with a Java Virtual Machine (JVM). It was created in 1995 by James Gosling at Sun Microsystems to be simple, secure, portable, high-performance, and dynamic. The Java Development Kit (JDK) includes tools like a compiler and debugger to develop Java applications, which are compiled to bytecode that can run on any JVM.
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Write once, Run anywhere – Java programs are platform independent which means they can be run on any operating system.
JVM, JRE and Javac are the main part for the java program
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What is java
Introduction to Java - Java, was developed by Sun Microsystems, by James Gosling, is an object oriented programming language.
java basics.pptx
Java is an object-oriented programming language that is simple, secure, portable, and robust. It provides support for multithreaded programming and is architecture-neutral and interpreted, running on the Java Virtual Machine (JVM). The JVM provides the runtime environment for Java programs and executes optimized Java bytecode. Setting up Java involves downloading the Java Development Kit (JDK), which contains the JRE and tools, and configuring the system path and environment variables. Popular editors for writing Java include Notepad, NetBeans, and Eclipse.
Introduction to java
This document provides an introduction to Java, including descriptions of the Java ecosystem, the Java Development Kit (JDK), Java Runtime Environment (JRE), and key features of Java such as portability, object orientation, and security. The JDK contains development tools like compilers and debuggers as well as the JRE, which runs Java programs. The JRE includes the Java Virtual Machine (JVM) and class libraries. The JVM interprets bytecode into machine code and includes a just-in-time (JIT) compiler to improve performance. Java's portability comes from writing bytecode rather than platform-specific machine code.
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