What is an array length?
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How to find the given number is a prime number or not by getting input from the user
What are user defined exceptions?
static inner classes means..?
Why do inner class cannot have static declaration except static nested class?
Why do we need singleton class?
How do you sort in java?
How can we find the actual size of an object on the heap?
Why do we need main method to execute a java program?
Why do we declare a class static?
suppose in a class there is a code like this: { Set hs=new Hashset(); hs.add(new Emp("kathy",1000)); hs.add(new Emp("kathy",2000)); } how can u avoid the above code in your class as set won't allow duplicate objects?
How can you read content from file in java?
What do you mean by light weight and heavy weight components?