How static variable work in java?
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What is the lifetime and scope of a variable?
Can a final variable be manipulated in java?
Why spring singleton is not thread safe?
Using callable statement how can you pass out parameters, explain with example?
Is java hashset ordered?
What is the r character?
Why should we create an object? what is a need of it? Apart from access members of a class i want what is a need of object what does it contain?? In normal class to access any member of thaht class we create object where as for static class we access its members using class name. what is a difference between them... thanks in advance.
which one the better thread emplemented thread or extended ?
why the abstract class has default constructor?
Can we have static methods in an interface?
Can constructor be static or final?
Difference between Map & Hashmap