What are the 4 versions of java?
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What do you understand by abstract classes?
What is data string?
Can we cast any other type to boolean type with type casting?
Can you override a private or static method in java?
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What is the life cycle of Servlet?
Can java hashmap have duplicate keys?
What is downcasting?
Which Component subclass is used for drawing and painting?
What is fail fast in java?
What is broken and continue statement?
What is the type of lambda expression?