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?

3 Answers  

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Can a final variable be initialized in constructor?

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What is an object class?

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explain about method overloading and method overriding with difficult examples

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How to find the index of the largest number in an arraylist java?

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write java code to print second max number in the array

12 Answers   Huawei, IBAB,

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Explain about fail safe iterators in java?

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What method is used to know the status of Checkbox(i.e it is checked or unchecked)?

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Which is bigger float or double?

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what is multithreading?

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Is integer passed by reference in java?

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