Commons Collections 简明教程

Commons Collections - 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 www.oracle.com/technetwork/java/archive-139210.html 链接免费获得。因此，您可以根据自己的操作系统下载一个版本。

Java SE is freely available from the link www.oracle.com/technetwork/java/archive-139210.html So, you download a version based on your operating system.

按照说明下载 Java 并运行 .exe 以在您的机器上安装 Java。在您的机器上安装 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

我们假设您已在 c:\Program Files\java\jdk directory 中安装了 Java。

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

我们假设您已在 c:\Program Files\java\jdk directory 中安装了 Java。

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

应设置环境变量 PATH 来指向 Java 二进制文件安装的位置。如果您遇到困难，请参阅您的 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，如果您使用 bash 作为您的 Shell，则您需要将以下行添加到您的 .bashrc: export PATH=/path/to/java:$PATH' 的末尾：

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 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 www.eclipse.org.

Download Common Collections Archive

从 commons-collections4-4.1-bin.zip 下载 Apache Common Collections jar 文件的最新版本。在撰写本教程时，我们下载了 commons-collections4-4.1-bin.zip 并将其复制到 C:>Apache folder 中。

Download the latest version of Apache Common Collections jar file from commons-collections4-4.1-bin.zip. At the time of writing this tutorial, we have downloaded commons-collections4-4.1-bin.zip and copied it into C:\>Apache folder.

OS

Archive name

Windows

commons-collections4-4.1-bin.zip

Linux

commons-collections4-4.1-bin.tar.gz

Mac

commons-collections4-4.1-bin.tar.gz

Set Apache Common Collections Environment

将 APACHE_HOME 环境变量设置到存储在计算机上的 Apache jar 所在的基目录位置。假设我们已在各种操作系统上将 commons-collections4-4.1-bin.zip 抽取到 Apache 文件夹中，如下所示 −

Set the APACHE_HOME environment variable to point to the base directory location where Apache jar is stored on your machine. Assuming, we’ve extracted commons-collections4-4.1-bin.zip in Apache folder on various Operating Systems as follows −

OS

Archive name

Windows

Set the environment variable APACHE_HOME to C:\Apache

Linux

export APACHE_HOME=/usr/local/Apache

Mac

export APACHE_HOME=/Library/Apache

Set CLASSPATH Variable

将 CLASSPATH 环境变量设置到 Common Collections jar 位置。假设你已将 commons-collections4-4.1-bin.zip 存储在各种操作系统上的 Apache 文件夹中，如下所示 −

Set the CLASSPATH environment variable to point to the Common Collections jar location. Assuming, you have stored commons-collections4-4.1-bin.zip in Apache folder on various Operating Systems as follows −

OS

Output

Windows

Set the environment variable CLASSPATH to %CLASSPATH%;%APACHE_HOME%\commons-collections4-4.1-bin.jar;.;

Linux

export CLASSPATH=$CLASSPATH:$APACHE_HOME/commons-collections4-4.1-bin.jar:.

Mac

export CLASSPATH=$CLASSPATH:$APACHE_HOME/commons-collections4-4.1-bin.jar:.