What is application system?
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What about main() method in java ?
What are the differences between this and super keyword?
Why is singleton not thread safe?
Difference between String and StringBuffer.
Which variables are stored in heap?
In collection sorting comparable and comparator interface will be used..but why this two interfaces required..two will work same purpose so why there are two interfaces instead of one?when to use comparator and when to use comparable?
How to sort an array from smallest to largest java?
What is meant by class loader? How many types are there?
What is a package?
What are the main concepts of oops in java?
Why is sizeof not a function?
What is a buffer in java?