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| Design - Interview Questions and Answers for 'Goldman sachs' - 4 question(s) found - Order By Newest | |||||||||||||||||||||||||||
 Very frequently asked. Among first few questions in almost all interviews. Among Top 5 frequently asked questions. Frequently asked in Indian service companies (HCL,TCS,Infosys,Capgemini etc based on multiple feedback ) and Epam Systems | |||||||||||||||||||||||||||
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| Ans. "equals" is the method of object class which is supposed to be overridden to check object equality, whereas "==" operator evaluate to see if the object handlers on the left and right are pointing to the same object in memory. x.equals(y) means the references x and y are holding objects that are equal. x==y means that the references x and y have same object. Sample code: String x = new String("str"); String y = new String("str"); System.out.println(x == y); // prints false System.out.println(x.equals(y)); // prints true | |||||||||||||||||||||||||||
 Sample Code for equals | |||||||||||||||||||||||||||
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 Discuss Correct / Improve  java string comparison string object class == equals object equality operator == vs equals equals vs ==  Asked in 293 Companies  basic  frequent | |||||||||||||||||||||||||||
 Try 6 Question(s) Test | |||||||||||||||||||||||||||
| Very frequently asked. Usually followed by questions related to private constructor and synchronized access. Frequently asked in JPMorgan and TCS (Based on 2 feedback) | |||||||||||||||||||||||||||
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| Ans. http://www.buggybread.com/2014/03/java-design-pattern-singleton-interview.html | |||||||||||||||||||||||||||
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| Discuss Correct / Improve java design pattern singleton at&t ebay fidelity india united healthcare india Asked in 46 Companies intermediate frequent | |||||||||||||||||||||||||||
| Frequently asked in face to face interviews. | |||||||||||||||||||||||||||
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| 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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| Discuss Correct / Improve ebay fibonacci series Asked in 66 Companies basic frequent | |||||||||||||||||||||||||||
| Very Frequently asked to Senior Software Engineers or Developers. | |||||||||||||||||||||||||||
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| Ans. [Open Ended Answer] | |||||||||||||||||||||||||||
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| Discuss Correct / Improve design patterns Asked in 17 Companies intermediate frequent | |||||||||||||||||||||||||||
Which of the following statement is not true ?
