Core java - Interview Questions and Answers for 'Geometric' | Search Interview Question

Core java - Interview Questions and Answers for 'Geometric' - 2 question(s) found - Order By Newest

Q1. What is a ConcurrentHashMap ?

Ans. ConcurrentHashMap is a hashMap that allows concurrent modifications from multiple threads as there can be multiple locks on the same hashmap.

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isnt the use of HashTable and ConcurrentHashMap the same, i.e providing synchronized map collection ?

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Q2. Write a program to print fibonacci series.

Core Java

Ans. int count = 15;
int[] fibonacci = new int[count];
fibonacci[0] = 0;
fibonacci[1] = 1;
for(int x=2; x < count; x++){
fibonacci[x] = fibonacci[x-1] + fibonacci[x-2];
}

for(int x=0; x< count; x++){
System.out.print(fibonacci[x] + " ");
}

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