What is string data?
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What will happen if non-synchronized method calls a static synchronized method and what kind of lock it acquires?
What is the difference between instanceof and isinstance?
In java, what is the difference between method overloading and method overriding?
Why set is used in java?
What is the meaning of flag day?
Can we use catch statement for checked exceptions when there is no chance of raising exception in our code?
what is use of marker interface? give me good example?
There are 100 keys and values in HashMap.how to get the keys and values?
Explain where variables are created in memory?
What is the covariant return type?
What do you mean by hashing?
Why we should declare the variables as static and final in interfaces?