What is the difference between hashmap and hashtable in java?
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What is the difference between error and an exception?
Which method must be implemented by all threads?
Marker interface means , interface which has no methods.Then what is the necessity of its usage.I read "it tells the compiler that it should be treated differently ". "It is used to store state of an object". But still am not clear.Please explain clearly.
How is object created in java?
What do you mean by object?
What is type conversion in java?
What is javac in java?
What is stringjoiner ?
What are the elements of java?
Can a static class have a constructor java?
Can an abstract class be final?
Can we access a database using applets?