search
HomeJavajavaTutorialHow to configure environment variables in java

How to configure environment variables in java

Dec 27, 2019 pm 02:38 PM
javaenvironment variablesConfiguration

How to configure environment variables in java

#Download JDK

Download address: https://www.oracle.com/technetwork/java/javase/downloads/index-jsp-138363.html

Click the download button:

How to configure environment variables in java

How to configure environment variables in java

Start installing JDK:

How to configure environment variables in java

can be set to the path you want to install.

Environment variable configuration

1. Open the environment variables window

right-click This PC(this Computer) -> Properties -> Advanced system settings -> Environment Variables...

How to configure environment variables in java

How to configure environment variables in java

How to configure environment variables in java

2. Create a new JAVA_HOME variable

Click the New... button

How to configure environment variables in java

Input:

Variable name: JAVA_HOME

Variable value: The absolute path of the JDK installation on the computer

After inputting, click OK.

How to configure environment variables in java

#The following files must be visible in the JDK path.

How to configure environment variables in java

3. Create/modify CLASSPATH variable

If the CLASSPATH variable exists, select it and click Edit.

If not, click New... to create a new one.

Enter/add after the existing variable value:

Variable name: CLASSPATH

Variable value: .;%JAVA_HOME%\lib\dt.jar ;%JAVA_HOME%\lib\tools.jar;

Click OK to save.

How to configure environment variables in java

#4. Modify the Path variable

Due to the difference in win10, when the Path variable is selected, the system will easily All different paths are separated and will not be connected together like win7 or win8.

How to configure environment variables in java

Create two new paths:

%JAVA_HOME%\bin
%JAVA_HOME%\jre\bin

How to configure environment variables in java

##5. Check to open cmd, enter java, and a series of The command prompt indicates that the configuration is successful:


How to configure environment variables in javaPHP Chinese website has a large number of free

JAVA introductory tutorials

, everyone is welcome study!

The above is the detailed content of How to configure environment variables in java. For more information, please follow other related articles on the PHP Chinese website!

Statement
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
How does the JVM handle differences in operating system APIs?How does the JVM handle differences in operating system APIs?Apr 27, 2025 am 12:18 AM

JVM handles operating system API differences through JavaNativeInterface (JNI) and Java standard library: 1. JNI allows Java code to call local code and directly interact with the operating system API. 2. The Java standard library provides a unified API, which is internally mapped to different operating system APIs to ensure that the code runs across platforms.

How does the modularity introduced in Java 9 impact platform independence?How does the modularity introduced in Java 9 impact platform independence?Apr 27, 2025 am 12:15 AM

modularitydoesnotdirectlyaffectJava'splatformindependence.Java'splatformindependenceismaintainedbytheJVM,butmodularityinfluencesapplicationstructureandmanagement,indirectlyimpactingplatformindependence.1)Deploymentanddistributionbecomemoreefficientwi

What is bytecode, and how does it relate to Java's platform independence?What is bytecode, and how does it relate to Java's platform independence?Apr 27, 2025 am 12:06 AM

BytecodeinJavaistheintermediaterepresentationthatenablesplatformindependence.1)Javacodeiscompiledintobytecodestoredin.classfiles.2)TheJVMinterpretsorcompilesthisbytecodeintomachinecodeatruntime,allowingthesamebytecodetorunonanydevicewithaJVM,thusfulf

Why is Java considered a platform-independent language?Why is Java considered a platform-independent language?Apr 27, 2025 am 12:03 AM

JavaachievesplatformindependencethroughtheJavaVirtualMachine(JVM),whichexecutesbytecodeonanydevicewithaJVM.1)Javacodeiscompiledintobytecode.2)TheJVMinterpretsandexecutesthisbytecodeintomachine-specificinstructions,allowingthesamecodetorunondifferentp

How can graphical user interfaces (GUIs) present challenges for platform independence in Java?How can graphical user interfaces (GUIs) present challenges for platform independence in Java?Apr 27, 2025 am 12:02 AM

Platform independence in JavaGUI development faces challenges, but can be dealt with by using Swing, JavaFX, unifying appearance, performance optimization, third-party libraries and cross-platform testing. JavaGUI development relies on AWT and Swing, which aims to provide cross-platform consistency, but the actual effect varies from operating system to operating system. Solutions include: 1) using Swing and JavaFX as GUI toolkits; 2) Unify the appearance through UIManager.setLookAndFeel(); 3) Optimize performance to suit different platforms; 4) using third-party libraries such as ApachePivot or SWT; 5) conduct cross-platform testing to ensure consistency.

What aspects of Java development are platform-dependent?What aspects of Java development are platform-dependent?Apr 26, 2025 am 12:19 AM

Javadevelopmentisnotentirelyplatform-independentduetoseveralfactors.1)JVMvariationsaffectperformanceandbehavioracrossdifferentOS.2)NativelibrariesviaJNIintroduceplatform-specificissues.3)Filepathsandsystempropertiesdifferbetweenplatforms.4)GUIapplica

Are there performance differences when running Java code on different platforms? Why?Are there performance differences when running Java code on different platforms? Why?Apr 26, 2025 am 12:15 AM

Java code will have performance differences when running on different platforms. 1) The implementation and optimization strategies of JVM are different, such as OracleJDK and OpenJDK. 2) The characteristics of the operating system, such as memory management and thread scheduling, will also affect performance. 3) Performance can be improved by selecting the appropriate JVM, adjusting JVM parameters and code optimization.

What are some limitations of Java's platform independence?What are some limitations of Java's platform independence?Apr 26, 2025 am 12:10 AM

Java'splatformindependencehaslimitationsincludingperformanceoverhead,versioncompatibilityissues,challengeswithnativelibraryintegration,platform-specificfeatures,andJVMinstallation/maintenance.Thesefactorscomplicatethe"writeonce,runanywhere"

See all articles

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

Video Face Swap

Video Face Swap

Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Tools

SublimeText3 English version

SublimeText3 English version

Recommended: Win version, supports code prompts!

SecLists

SecLists

SecLists is the ultimate security tester's companion. It is a collection of various types of lists that are frequently used during security assessments, all in one place. SecLists helps make security testing more efficient and productive by conveniently providing all the lists a security tester might need. List types include usernames, passwords, URLs, fuzzing payloads, sensitive data patterns, web shells, and more. The tester can simply pull this repository onto a new test machine and he will have access to every type of list he needs.

Dreamweaver Mac version

Dreamweaver Mac version

Visual web development tools

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor

PhpStorm Mac version

PhpStorm Mac version

The latest (2018.2.1) professional PHP integrated development tool