Answer Posted / arun kumar rout

hashtable is Synchronised where as hashmap is not.

What's the base class in java from which all classes are derived?

1207

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What are format specifiers in java?

991

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What is unmodifiable list in java?

900

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What is the difference between this() and super() in java?

976

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if u open login & logout ,how can udisplay the timelogin & logout members ?

2220

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Why strings in java are called as immutable?

945

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How many times finalize method will be invoked? Who invokes finalize() method in java?

963

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What happens when a thrown exception is not handled?

1049

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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; }

2281

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How to display all the prime numbers between 1 and 100

937

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What is stream api in java8?

1067

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What is overriding in java?

986

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What does compareto () do in java?

947

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What are user defined exceptions?

960

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What are void pointers?

1217

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