第一个不知道时什么。
J2SE v 1.4.2 JRE SDK 是java运行时环境。主要是JVM。
需要下载j2sdk,j2sdk包括javac,java等编译,运行和调试等工具。其中也包括了jre。
J2SE v 1.4.2 JRE SDK 是java运行时环境。主要是JVM。
需要下载j2sdk,j2sdk包括javac,java等编译,运行和调试等工具。其中也包括了jre。
解决方案 »
- 一个关于多线程与按钮的问题
- 关于数据库唯一性
- 我是山区农村的孩子,买不起vs。那么Java+mySQL是免费的把?可以用来开发商业程序把?vs好像不行。
- The executeQuery method must return a result set 是为什么?
- 求助:菜鸟关于JAVA的一个问题
- 请问如何将一个Frame总是放到其它Frame的前面?谢谢
- 怎样取得jar文件的路径?
- 急!
- org.apache.xerces.parsers.DOMParser包在哪里有的下载阿?很急,在线等
- 查询图片,图片文件存放在数据库中好,还是存放路径好,是否有更好的解决办法
- 如何把JTree的模型提取成一个XML文件?必给分!
- 没有main()该怎么运行?(在线等待)
JRE :JRE全称是 Java Runtime Environment (Java 运行环境),jvm+java附加类库=jre
SDK :software develop Kit (软件开发工具包),j2sdk包括了jre和其他的开发工具看看下边的你就明白了:SDK and JREPurpose
The Java 2 SDK and Java 2 Runtime environment are the two principal products that implement the Java 2 Platform, for developers and consumers, respectively.
Overview
There are two principal products in the J2SETM platform family. JavaTM Runtime Environment (JRE)
The JRE provides the libraries, Java virtual machine, and other components necessary for you to run applets and applications written in the Java programming language. It does not contain tools and utilities such as compilers or debuggers for developing applets and applications. Java 2 SDK
The Java 2 SDK is a superset of the JRE. The Java 2 SDK contains everything that's in the JRE, plus additional tools such as compilers and debuggers that are necessary for developing applets and applications.
Question: Why would anyone want the JRE if the Java 2 SDK has everything in the JRE and more? Answer: The JRE is smaller and therefore easier to download or distribute with software than the Java 2 SDK. Most users of Java technology are people who just want to run applets and applications developed by others. They're not interested in developing any applications themselves. The relatively small Java RE is made for such end users. They can download the Java RE themselves from the web, or software vendors can include it in their own products. The typical end-user doesn't need the bulkier Java 2 SDK with its development tools.
你只需要安装个JBuilder,然后开始学习。一段时间后,再来其他的。这是最快捷的学习方式。
初学java
装了个JBuilder9.0可是不会用。特别对里面的项目结构弄不清楚。郁闷...........
能不能交我用用,或是告诉我哪有使用方法的文章看看。
回feiyuegaoshan(飞跃),现在有csdn出的那本书的jbuilder试用版,本来想先从最基础学起的,看市面上那么多java的语言书,而delphi好像就没出过object pascal的,所以以为java不会语法就不易用开发工具些,这么看就直接用jbuilder好了!