Why char array is preferred over string for storing password?
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Can java hashmap have duplicate keys?
What is methodological framework?
What is the difference between method overriding and overloading?
What are different types of control structures?
What happens when main () method is declared as private?
write a program that list all permutations of ABCDEF in which A appears before B?
"we cannot create an object of interface but we can create a variable of it".diacuss the statement with the help of an example.
how to print hello world every second till i have pressed enter key ???
3) Suppose you are a very rich person, having 50 rooms and you have lost the key for one of the room's. How effectively you can find this key? (Qs2 and Qs3 are related)
Can an anonymous class be declared as implementing an interface and extending a class?
What are virtual functions?
Can java object be locked down for exclusive use by a given thread?