What is unmodifiable collection in java?
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Can there be an abstract class with no abstract methods in it?
What is the difference between hashmap and hashtable in java?
Explain about fail safe iterators in java?
What does the string method compareto () do?
Can java program run without jre?
Nested classes VS Inner classes?
Which containers may have a MenuBar?
Can we declare a class as abstract without having any abstract method?
What is an example of declaration?
different between exception and error? explaim check and uncheck exception
Explain garbage collection in java?
class{ ... ... interface myinterface{ ... ... } abstract class{ .. .. } ... .. .. } is this possible to write "Interface and/ or Abstract class inside a class ? if possible whcich one is possible is only interface? is only abstract?