What is instance means in java?
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What is downcasting?
What is Unicast and Multicast object? Where we will use?
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Can you give few examples of final classes defined in java api?
Can I import same package/class twice?
what is the difference between String and StringBuffer classes?
Can singleton class be serialized?
How garbage collection is done in java?
How can constructor chaining be done by using the super keyword?
What are reference variables in java?
Can we override the main method?
What is the concatenation operator in java?
What is starvation?