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Eclipse 3.3 - and I guess also other Java IDEs - provides a Code Formatter option according the Java Convention by Sun. You may import the Eclipse Code Formatter Profile Java Conventions without tabs, which differs from Eclipse's build-in Java Convention Formatter Profile only by the Indentation Tab policy modified from Mixed to Spaces only.
In order to import do it within Eclipse 3.3, select Window > Preferences > Java > Code Styl > Formatter > Import_.For more information, see Coding Standardsimport the code formatting settings from this wiki. Download the Eclipse settings (java-conventions-without-tabs.xml) which are attached to the Coding Standards page. In Eclipse, click on Windows, Preferences, and then navigate to the Java/Code Style/Formatter section. Click on Import, and select the java-conventions-without-tabs.xml file. Click on OK to make these your active formatting settings.
Eclipse JRE configuration
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