Why do we need singleton class?
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List some java keywords sun like c, c + + keywords?
What is difference between static and final?
Is java supports multiple inheritance? explain?
How can u increase the heap size in the memory?
What does business logic mean?
What about main() method in java ?
describe method overloading
What is the largest data type in java?
is set interface synchronized by default???
What is the difference between serializable and externalizable interface?
What types of index data structures can you have in java?
Difference between collection, collection and collections in java?