Why shall I use an indentation level of 4 with a displayed tab width of 8?
For indentation level, any level is OK. But we need a standard to work in a team. We choose the coding style used in “Programming Language Java” out of respect for the creators of Java language as the standard. Therefore we recommend the indentation level of 4. The reason for a displayed tab width of 8 is compatibility with the following essential tools: • … viewcvs, the CVS browser that SourceForge uses. • … Notepad, the default editor of Microsoft Windows. • … Unix command line tools like cat, less, tail, … Most tools support the settings above. An open source IDE that supports these settings is e.g. Eclipse. Text editors that also support it are e.g. jEdit and SciTE which are both open source and availabe for Linux, Mac OS X and Windows like Eclipse.
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