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# Eclipse Code Templates ## Using Code Templates Eclipse provides the ability to improve work efficiency and code predictability by defining and using code templates. During the development of Java programs, we often need to write the main method: ```java public static void main(String[]args) {} If we were to type it letter by letter, it would be a repetitive and meaningless task. In such cases, we can use Eclipse code templates to complete this work quickly. We just need to type `main` in the class body, then use Eclipse's code completion shortcut (default is `Alt+/`), and press Enter. We can then see that Eclipse has automatically completed the full definition of the main function for us: !(#) If we want to use `System.out.println()`, we only need to type `syso` and then press `Alt+/`: !(#) * * * ## Customizing Code Templates Eclipse also provides many code templates. We can see the list of all defined code templates through Windows->Preferences->Java->Editor->Templates (you can type "Templates" in the search box to find it). !(#) In the pop-up window, we select the `sysout` template and click "Edit" on the right, which displays the following: !(#) The editing panel is the core focus because everything is configured here. Let's first understand what the five key items in this panel are. * **Name:** The name, which is essentially the code abbreviation you can use later. * **Context:** Template context, specifying where this code template is effective. For Java, it includes at least these four: * Java type members: The code corresponding to the template is a class member. Strictly speaking, the `psvm` template should select this. * Java statements: The code corresponding to the template is a statement block. * Java: The most general one, as long as it's Java code. * Java doc: As the name suggests. * **Template Variables:** Eclipse has pre-set some template variables (you can click "Insert Variables" to see all pre-set variables), such as: * `${cursor}` represents the cursor. * `${date}` represents the current date string. * `${time}` represents the current time string. * `${line_selection}` selects the current line. * `${word_selection}` selects the current word. Of course, we can also define our own template variables. For example, if I define a `${myTemplateVarible}`, then the corresponding code displayed will be `myTemplateVarible`. * **Pattern:** The pattern corresponding to the code template. Just enter it according to the format you want the code to have. For more content on customizing code templates, you can click the "Help Contents" option in the Help menu, enter "Java Editor Template Variables" in the search bar of the pop-up dialog, and select "Java Editor Template Variables" to view the specific documentation description: !(#) [](#)(#) (#)[](#) [ClassInk Coding Plan supports mainstream large models like Doubao, GLM, DeepSeek, Kimi, MiniMax, etc., officially supplied, stable and reliable. Configuration Guide ¥9.9/month Subscribe Now](https://maas.xfyun.cn/modelSquare?ch=maas_lm_l2E)