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Can any one say how will sort map objects in java?
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In map we have TreeMap ,which sort objects as natural
order.and don't allow duplicate keys and null values
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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?
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