Swing 简明教程

SWING - Environment Setup

本部分将指导您如何在计算机上下载和设置 Java。请使用以下步骤设置环境。

This section guides you on how to download and set up Java on your machine. Please use the following steps to set up the environment.

Java SE 可从链接 Download Java 中免费获取。因此，您可以根据操作系统下载版本。

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

按照说明下载 Java 并运行 .exe 在计算机上安装 Java。在计算机上安装 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 the environment variables to point to the correct installation directories.

Setting Up the Path for Windows 2000/XP

假设您已在 c:\Program Files\java\jdk 目录中安装了 Java−

Assuming you have installed Java in c:\Program Files\java\jdk directory −

Step 1 − 右键单击“我的电脑”并选择“属性”。

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

Step 2 − 单击“高级”选项卡下的“环境变量”按钮。

Step 2 − Click the 'Environment variables' button under the 'Advanced' tab.

Step 3 − 更改“Path”变量，以便它还包含 Java 可执行文件的路径。例如，如果路径当前设置为 'C:\WINDOWS\SYSTEM32' ，请将路径更改为 'C:\WINDOWS\SYSTEM32;c:\Program Files\java\jdk\bin' 。

Step 3 − 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

假设您已在 c:\Program Files\java\jdk 目录中安装了 Java−

Assuming you have installed Java in c:\Program Files\java\jdk directory −

Step 1 − 编辑 'C:\autoexec.bat' 文件并在末尾添加以下行： 'SET PATH=%PATH%;C:\Program Files\java\jdk\bin' 。

Step 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 Java 二进制文件已安装的位置。如果您在执行此操作时遇到问题，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，如果您使用 bash 作为 shell，则您会在结尾 '.bashrc: export PATH=/path/to/java:$PATH' 添加以下行。

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

Popular Java Editors

为了编写 Java 程序，您需要文本编辑器。市场上还有功能更强大的 IDE。但是目前，您可以考虑以下选项之一−

To write your Java programs, you will need a text editor. There are even more sophisticated IDE 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 − Netbeans is a Java IDE that is open source and free, which can be downloaded from https://www.netbeans.org/index.html.

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