Explain about core java?
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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?
What is a short in java?
Can a final variable be initialized in constructor?
What is an object class?
explain about method overloading and method overriding with difficult examples
How to find the index of the largest number in an arraylist java?
write java code to print second max number in the array
Explain about fail safe iterators in java?
What method is used to know the status of Checkbox(i.e it is checked or unchecked)?
Which is bigger float or double?
what is multithreading?
Is integer passed by reference in java?