Formatting Code

Eclipse has a built-in mechanism for formatting Java code. Formatting code with a tool is useful for keeping the style consistent, applying a new style to old code, or matching styles with a different client or target (such as a book or an article).

To quickly format a small block of code, select the code and press Ctrl-Shift+F in Windows (or Cmd+Shift+F on a Mac). The code is formatted to the current settings. If no code is selected, the entire file is formatted. Occasionally, you need to select more code—such as an entire method—to get the indentation levels and brace matching correct.

The Eclipse formatting settings are found in the Properties pane under Java Code Style, Formatter. You can configure these settings on a per-project or workspace-wide basis. Dozens of rules can be applied and modified to suite your own style.

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