What is the difference between int and integer in java?
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What is difference in between java class and bean?
How to read and write image from a file ?
Can we store variables in local blocks?
What are the core java topics?
Is space a character in java?
What is the frontend and backedn in Java?
Where import statement is used in a java program?
what is the purpose of "virtual"?
What is Connection pooling? Explain Pros and Cons?
When you say String is immutable, what do you mean by that? Say I have String s = "Ness" s= s+"Technologies"; What will happen? If the value gets appended, then what is the meaning of immutable here?
Can we call thread start () twice?
Is null or empty java?