What is difference between length and length() method in java ?
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Is array size fixed in java?
What is the method to expand and collapse nodes in a jtree?
In the HashMap, we know the values but we dont know the key, then how can we get the key from HashMap ?????
What access modifiers can be used for methods?
What is an Iterator interface?
What is use of super keyword?
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How Vector class is synchronized,How to build user defined class as synchronized?
What is the difference between array and arraylist? what is the difference between arraylist and linkedlist?
What are static variables and functions?
Which list is sorted in java?
What is the difference between preemptive scheduling and time slicing?