What are the 6 boolean operators?
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write a progam hashmap & hashtable?
What is the use of arraylist in java?
Is array a class?
why using interface interface ?
How are Observer and Observable used?
Which is better list or arraylist in java?
Using callable statement how can you pass out parameters, explain with example?
What is a Java package and how is it used?
Can a main method be overloaded?
what is mutability?which one is mutable String or StringBuffer?and why?give examples of each which shows the mutability of each String or StringBuffer
What is a method vs function?
What is left shift and right shift?