What is the difference between compile-time polymorphism and runtime polymorphism?
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What is the purpose of static keyword in java?
Functionality of JVM?
What is design pattern and there types?
What is byte value?
what is the use of clone method? why user cant overwrite in sub class without its proper defination.
What are the two environment variables that must be set in order to run any java programs?
What is an iterator java?
Write a program to find the greatest of three numbers in java?
What is the difference between conversation & casting?
Static Variable can referred in non-static method?
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 garbage collection? What is the process that is responsible for doing that in java?