When should I use singleton pattern?
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How do you read a char in java?
What is sorting algorithm in java?
How big is a pointer?
Explain the difference between collection api and stream api in java8?
What are virtual methods?
What is the difference between serialization and deserialization?
can any body body expalin best definitions & best real time exaples for opps concepts.
what is java bean?where can we use it?
What is the difference between applet and application?
Why we can not force Garbage Collection?
suppose we have an interface & that interface contains five methods. if a class implements that interface then we have to bound that to give tha definition of all five methods in that class. If we declare that class as abstract then can we call only two methods to give the deinition of that method & i don't want to give the definition of all the methods? can it possible
Why java is call by value?