What should I do if gbk's unmappable characters appear in Java?

What to do if gbk’s unmappable characters appear in java

Such an error occurs, usually because the code contains Chinese characters, Chinese characters in comments also count. Because when using CMD to run a java program, the system's default encoding format is gbk. Codes containing Chinese characters are generally in UNICODE format, so it is easy to cause coding errors when running codes containing Chinese characters directly.

Method 1: Convert the encoding format of the source file

Use notepad software to open the source file

1. First copy all the source file code. Then delete all the code;

2. Next, set the encoding format to "Use ANSI format encoding". After setting, paste the source file and save it.

After modification, let’s run it again and it works perfectly.

Method 2: Use the -encoding directive to specify the running encoding as UTF-8

If you do not use an integrated editor, but use a tool such as Notepad to write code. Then you can directly use the -encoding directive to specify the encoding format for the file.

For example javac -encoding UTF-8 XXX.java

Replace XXX with your java file name.

For example, enter javac -encoding UTF-8 Puppy.java, the compilation is successful and runs perfectly.

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