What about instanceof operator in java?
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7) Suppose there is Student class like class student { int age; string name; } We want to store these objects in a HashMap. Do we need to override any methods in Student class? If any which ones and why? what if i just override equals or just hashcode? what will be the results in both the cases?
What is the best way to findout the time/memory consuming process?
why java is platform independent?
Difference between Superclass and Subclass?
What is array sorting in java?
Why java is object oriented?
What is int argc char * argv?
How are commas used in the initialization and iteration parts of a for statement?
What does three dots mean in java?
What is meant by class loader? How many types are there? When will we use them?
why we need this (1.object,2.class,3.data hiding,4.encapsulation,5.abstraction,6. polymorphism,7.inheritance)
IS method overriding is Duplication of Methods?