Why spring singleton is not thread safe?
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What is the difference between the file and randomaccessfile classes?
Give a brief description of java socket programming?
Distinguish method overloading and method overriding
What is the buffer limit?
How many ways can we create the string object?
Is java call by reference?
What is the final method?
printstream class method println() is calling using System class and its static object out .how it is explain any one in detail with example ?
What is this keyword used for?
how can we synchronize Hash map?
garbate collector(GC)?
what is the purpose of the runtime class?