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lang-java
this.is optional, but it is a good practice. It helps document the difference between accessing variables/parameters vs. fields, so other people looking at the code will know for sure what is being accessed. This is especially true for larger methods, where many parameters and variables may exist. I find it a good code practice to always do it, and IDEs like Eclipse can be told to help enforce such a "code style", using compiler error/warning "Unqualified access to instance field".Window -> Preferences -> Java -> Editor -> Save Actions. Now go to the tabCode Styleand enable "Use final modifier where possible". So, eclipse will add the final modifier keyword where possible each time you save your code.