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Java

SPYRIDON CHRYSSIKOPOULOS
SPYRIDON CHRYSSIKOPOULOS
12,252 Points
Posted by SPYRIDON CHRYSSIKOPOULOS
SPYRIDON CHRYSSIKOPOULOS
12,252 Points

why "this" isn't used? ... if (equals(other)) {...}

In ... if (equals(other)) {...}

why isn't "this" used? I would expect if (this.equals(other)) {...}

is it because we are in the class? then why should we have "this" at all? Thanks!

3 Answers

tobiaskrause
tobiaskrause
9,160 Points

Since i have to leave i just add this here fast...sorry maybe i write more later :). Common reason for using this: http://docs.oracle.com/javase/tutorial/java/javaOO/thiskey.html

http://stackoverflow.com/questions/2429062/java-when-to-use-this-keyword

http://stackoverflow.com/questions/2411270/when-should-i-use-this-in-a-class

lambda
lambda
12,556 Points
lambda
lambda
12,556 Points 
is it because we are in the class?

Because you are inside the class "this" is implicit. You can add "this" to make it explicit and more readable. Try "this.equals(other)" and you get the same result. There are good practices for when to use/not use "this" keyword in the links in Tobias' post.

then why should we have "this" at all?

Refer to Tobias' links about we to use and not use "this" keyword. For example when inside an anonymous inside class "this" will refer to the inner class, but you want to reference the outer class. So "this" will not work in this case.