Answer Posted / stalin

The HashMap class is roughly equivalent to Hashtable, except
that it is unsynchronized and permits nulls. (HashMap allows
null values as key and value whereas Hashtable doesnt
allow). HashMap does not guarantee that the order of the map
will remain constant over time. HashMap is unsynchronized
and Hashtable is synchronized

What are the ways in which a thread can enter the waiting state?

736

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Is there any difference between nested classes and inner classes?

842

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What are the restrictions imposed on method overriding?

811

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What is a line separator in java?

766

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What is palindrome in java?

771

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What access modifiers can be used for methods?

859

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How do constructors use this() and super()?

836

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How do you find the maximum number from an array without comparing and sorting?

899

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Explain java thread life cycle.

829

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What are the various access specifiers in java?

794

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What does it mean that a class or member is final?

776

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Can we override the static methods?

799

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What is a variable and constant?

795

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How many types of string data types are there?

792

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public class Test { public static void main(String[] args) { int countA = 0; int countB = 0; int countC = 0; int countD = 0; int countE = 0; int countF = 0; int countG = 0; int countH = 0; int countI = 0; int countJ = 0; int countK = 0; int countL = 0; int countM = 0; int countN = 0; int countO = 0; int countP = 0; int countQ = 0; int countR = 0; int countS = 0; int countT = 0; int countU = 0; int countV = 0; int countW = 0; int countX = 0; int countY = 0; int countZ = 0; } } Can anybody tell me any alternate solution(like loop or something) to automate this initialization process. Ex:- for(char chr='A';chr<='Z'; chr++) { (int) String "count"+chr = 0; }

2121

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