What are the difference between string, string builder, and string buffer in java?
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how cani read a command line argument?(usingfile object).
Give us a program to check for parenthesis matching using stack.
Is java type safe?
What is __ init __ functions?
Why vector class is used?
What is the preferred size of a component?
What is anti pattern in cyber security?
What is array and arraylist in java?
What are virtual functions?
Can we define constructor in inner class?
suppose in a class there is a code like this: { Set hs=new Hashset(); hs.add(new Emp("kathy",1000)); hs.add(new Emp("kathy",2000)); } how can u avoid the above code in your class as set won't allow duplicate objects?
how can you take care of mutual exclusion using java threads? : Java thread