what is the constructor and how many types of constructors are used in java?
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Why are strings immutable in Java?
What is “try and catch” in java
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What is compile time polymorphism?
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Can we have return statement in finally clause? What will happen?
What is the declaration statement?
What are the concepts of 'OOPS'?
How do you break a loop?
Suppose there is an Online shopping cart application having different objects like Cart, SelectionItem, Billing, COnfiguration, Authentication, Authorization, PersonalDetails etc. Out of this which one can be made a singleton pattern and why?
why we import both packages java.awt.*; and java.awt.event.*; as java.awt.*; can import all classes na. then what is the need of importing java.awt.event.*; ?
How to access a variable if it is declared as private?
What is hashset in java?