How to Compile a Java Source File Encoded in UTF-8

What are the steps to compile a Java source file that is encoded in UTF-8?

javac -encoding UTF-8 MyClass.java

Compiling a Java source file encoded in UTF-8 is straightforward, but it requires awareness of specifying the correct encoding to prevent issues with character misinterpretation during the compilation process. Java's compiler, `javac`, allows specifying the encoding using the `-encoding` flag, which is crucial for handling special characters correctly.

javac -encoding UTF-8 MyClass.java

Causes

• Source code contains non-ASCII characters.
• Java compiler default encoding does not match the file's encoding.

Solutions

• Use the `javac` command with the `-encoding UTF-8` option.
• Ensure your development environment is configured to recognize UTF-8 encoding.

Mistake: Not specifying the encoding when compiling

Solution: Always use the `-encoding UTF-8` option with your `javac` command.

Mistake: Using an editor that does not save as UTF-8 by default

Solution: Configure your code editor or IDE to save files as UTF-8.