中关村在线

运行Java必须装JRE吗？

运行Java程序并不需要单独安装JRE，因为JDK已包含编译和运行所需的所有工具。只需正确安装JDK并配置好环境变量，即可直接使用。下面将演示如何通过JDK运行一个简单的Hello World程序，整个过程无需额外安装其他组件。 1、 在E盘新建一个文本文档即可。 2、 新建 ...
新浪网

Java JRE安装与环境配置

本文详细讲解Java JDK与JRE的安装步骤及环境变量设置，适合正在学习或使用Java的读者参考，帮助您快速掌握开发环境的搭建方法。 1、 百度搜索JDK，获取官方下载链接，所示。 2、 点击JDK官网下载链接，进入下载页面，所示。 3、 本文以Windows系统下的JDK环境配置 ...
新浪网

Eclipse启动提示JRE问题

当启动Eclipse时，若出现提示需要Java运行环境或开发工具包，但在指定路径中未找到Java虚拟机，可按以下方法排查。通常问题出在两个方面：一是未正确配置JDK环境变量，二是系统找不到javaw.exe文件。首先检查是否已安装JDK，若未安装，需先下载并安装合适版本。
TheServerSide

JAVA_HOME

JAVA_HOME is an operating system (OS) environment variable which can optionally be set after either the Java Development Kit (JDK) or the Java Runtime Environment (JRE) is installed. The JAVA_HOME ...
InfoWorld

What is the JDK? Introduction to the Java Development Kit

The JDK is the development platform for building Java applications. Learn about different JDK versions, then install a JDK in your development environment and use it to compile a Java program. The ...
TheServerSide

What is Java Development Kit (JDK)?

The Java Development Kit (JDK) is a development environment for building Java applications and applets that can then run on any Java Virtual Machine (JVM). The JDK includes a variety of development ...
PC Magazine

Java Runtime Environment

The combination of the Java Virtual Machine (Java interpreter), the core class library and supporting files, all of which are required to run a Java program. See Java and Java Virtual Machine. THIS ...