What does += mean coding?
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what is an anonymous class?
What is an accessor?
Why do we override tostring method in java?
What is the use of bin and lib in JDK?
how to make the double-tone class ? as we have singletone class..?
Do I need java on my pc?
What is charat ()?
What is isa relationship?
What are the differences between checked exception and unchecked exception?
which one is more efficient int x; 1. if(x==null) 2.if(null==x) state which one either 1 or 2?
What is final method?
why are there separate wait and sleep methods? : Java thread