Explain garbage collection in java?
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What will happen inside init() in servlet. my interviewer asked servlet lifecycle. i said "once servlet is loaded in to memory init() will be called which performs servlet initialization " . Again interview asked what values will be initialized . what is difference between init() and init(ServletConfig config).
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Does anyone still use java?
Write program to print Hello World and print each character address in that string and print how many times each character is in that string? Ex: H: 0 & 1 e:1 & 1 l :2,3,8 & 3 o:4,6 & 2 w:5 & 1 r: 7 & 1 d 9 & 1
What is the differences between c++ and java? Explain
What is java and their uses?
What does three dots mean in java?
What is java volatile?
how to call a method in different package?
Explain the difference between the Boolean & operator and the && operator?
What happens if an exception is not handled in a program?
In treeset we add same object ...what will be the out put
Is java same as core java?