Why is String immutable?
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what is thread? What are the high-level thread states? Or what are the states associated in the thread? : Java thread
What is the use of bufferedreader?
I have an HashMap object, which has with key and value pair. It has 10 keys and values in that object. Now the question is I want insert new key and value in middle or any where in that list but not at the end or at the top. Is it possible or not. If yes how can we achieve this one?
Explain the polymorphism principle?
Program to output as below formate: 1 2 3 4 5 6 7 8 9 10
Which is better ascii or unicode?
What is the purpose of tostring() method in java?
we cannot create an object of interface but we can create a variable of it
What are the benefits of operations in java?
What are the differences between forwarding () method and sendredirect() methods?
What is intern method in java?
Can we return null in java?