General - Interview Questions and Answers for 'Goldman sachs' | Search Interview Question

General - Interview Questions and Answers for 'Goldman sachs' - 5 question(s) found - Order By Newest

Basic and Very Frequently asked.

Q1. What is Polymorphism in Java ?

Ans. Polymorphism means the condition of occurring in several different forms.

Polymorphism in Java is achieved in two manners

1. Static polymorphism is the polymorphic resolution identified at compile time and is achieved through function overloading whereas

2. Dynamic polymorphism is the polymorphic resolution identified at runtime and is achieved through method overriding.

Sample Code for overloading

Sample Code for overriding

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Q2. What is a ConcurrentHashMap ?

Core Java

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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Very Frequently asked to Senior Software Engineers or Developers.

Q3. Describe some of the Design Patterns you have used ?

Design

Ans. [Open Ended Answer]

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Frequently asked in face to face interviews.

Q4. 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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Q5. Are you willing to spend long hours ?

General

Ans. why not if getting money in dollars!

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