Guava 简明教程

Guava - Environment Setup

Local Environment Setup

如果您仍然愿意为 Java 编程语言设置您的环境，则本节指导您如何在您的机器上下载并设置 Java。请按照下面提到的步骤设置环境。

If you are still willing to set up your environment for Java programming language, then this section guides you on how to download and set up Java on your machine. Please follow the steps mentioned below to set up the environment.

Java SE 可以从链接 Download Java 中免费获取。因此，您可以根据自己的操作系统下载版本。

Java SE is freely available from the link Download Java. So you download a version based on your operating system.

按照说明下载 Java 并运行 .exe 以在您的计算机上安装 Java。安装计算机上的 Java 后，您需要设置环境变量以指向正确的安装目录 −

Follow the instructions to download Java and run the .exe to install Java on your machine. Once you have installed Java on your machine, you would need to set environment variables to point to correct installation directories −

Setting up the Path for Windows 2000/XP

我们假设您已将 Java 安装在 c:\Program Files\java\jdk 目录中 −

We are assuming that you have installed Java in c:\Program Files\java\jdk directory −

  1. Right-click on 'My Computer' and select 'Properties'.

  2. Click on the 'Environment variables' button under the 'Advanced' tab.

  3. Now, alter the 'Path' variable so that it also contains the path to the Java executable. Example, if the path is currently set to 'C:\WINDOWS\SYSTEM32', then change your path to read 'C:\WINDOWS\SYSTEM32;c:\Program Files\java\jdk\bin'.

Setting up the Path for Windows 95/98/ME

我们假设您已将 Java 安装在 c:\Program Files\java\jdk 目录中 −

We are assuming that you have installed Java in c:\Program Files\java\jdk directory −

  1. Edit the 'C:\autoexec.bat' file and add the following line at the end − 'SET PATH=%PATH%;C:\Program Files\java\jdk\bin'

Setting up the Path for Linux, UNIX, Solaris, FreeBSD

环境变量 PATH 应设置为指向已安装 Java 二进制文件的位置。如果你在这方面遇到问题，请参阅 shell 文档。

Environment variable PATH should be set to point to where the Java binaries have been installed. Refer to your shell documentation if you have trouble doing this.

例如，如果您用 bash 作为您的 shell，则您将向您 '.bashrc: export PATH=/path/to/java:$PATH' 的末尾添加以下行

Example, if you use bash as your shell, then you would add the following line to the end of your '.bashrc: export PATH=/path/to/java:$PATH'

Popular Java Editors

要编写 Java 程序，您需要一个文本编辑器。市场中有许多高级集成开发环境可用。但目前，您可以考虑以下选项之一 −

To write your Java programs, you need a text editor. There are many sophisticated IDEs available in the market. But for now, you can consider one of the following −

  1. Notepad − On Windows machine you can use any simple text editor like Notepad (Recommended for this tutorial), TextPad.

  2. Netbeans − It is a Java IDE that is open-source and free which can be downloaded from https://www.netbeans.org/index.html.

  3. Eclipse − It is also a Java IDE developed by the eclipse open-source community and can be downloaded from https://www.eclipse.org/.

Download Guava Archive

从 guava-18.0.jar 下载 Guava jar 文件的最新版本。编写本教程时，我们已经下载了 guava-18.0.jar，并将它复制到了 C:\>Guava 文件夹。

Download the latest version of Guava jar file from guava-18.0.jar. At the time of writing this tutorial, we have downloaded guava-18.0.jar and copied it into C:\>Guava folder.

OS

Archive name

Windows

guava-18.0.jar

Linux

guava-18.0.jar

Mac

guava-18.0.jar

Set Guava Environment

将 Guava_HOME 环境变量设置为你计算机上储存 Guava jar 的基础目录位置。假设我们已经将 guava-18.0.jar 提取到各个操作系统上的 Guava 文件夹中，如下所示：

Set the Guava_HOME environment variable to point to the base directory location where Guava jar is stored on your machine. Assuming, we’ve extracted guava-18.0.jar in Guava folder on various Operating Systems as follows.

OS

Output

Windows

Set the environment variable Guava_HOME to C:\Guava

Linux

export Guava_HOME=/usr/local/Guava

Mac

export Guava_HOME=/Library/Guava

Set CLASSPATH Variable

将 CLASSPATH 环境变量设置为你计算机上储存 Guava jar 的位置。假设我们已经将 guava-18.0.jar 存储到各个操作系统上的 Guava 文件夹中，如下所示：

Set the CLASSPATH environment variable to point to the Guava jar location. Assuming, you have stored guava-18.0.jar in Guava folder on various Operating Systems as follows.

OS

Output

Windows

Set the environment variable CLASSPATH to %CLASSPATH%;%Guava_HOME%\guava-18.0.jar;.;

Linux

export CLASSPATH=$CLASSPATH:$Guava_HOME/guava-18.0.jar:.

Mac

export CLASSPATH=$CLASSPATH:$Guava_HOME/guava-18.0.jar:.