What is difference between checked and unchecked exception in java?
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Why should we create an object? what is a need of it? Apart from access members of a class i want what is a need of object what does it contain?? In normal class to access any member of thaht class we create object where as for static class we access its members using class name. what is a difference between them... thanks in advance.
difference between String a; and String a=new String();? y do v need to assign memory to the variable?
What is the difference between multiple processes and multiple threads?
What is the use of keywords in java?
In the HashMap, we know the values but we dont know the key, then how can we get the key from HashMap ?????
What is Marker interface in java? and what is clone?
How do you sort a string in java?
Why string is called as immutable?
what us Dyna action form?
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What is null data type?
What is output buffer?
what is a package?