Is hashmap thread safe?
Does treeset allow null in java?
What are batch updates. in jdbc
How do you create a null object?
What is casting?
Explain about complier design(phases)
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What about main() method in java ?
what is marker interface ? what is the necessity of it?
How will you measure that int takes up only 32 bits in memory?
What is the default modifier in Interface?
Why is multiple inheritance not supported in java?
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; }
Explain JPA in Java.