What is contract between hashcode and equal method?
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What is use of a abstract variable?
What is an object-oriented paradigm?
When to use runnable interface vs thread class in java?
What are the differences between getting and load method?
What are the types of collections in java?
Explain the difference between string, stringbuffer and stringbuilder in java?
When object is created and destroyed?
What is the entry point in Java, and how is it written?
When the constructor of a class is invoked?
What is the static field modifier?
What is jar?
What super () does in java?