7/28/2019 Credit Suisse Interview Question

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Credit Suisse Interview Question for Analysts

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4AnswersImplement a class using singleton pattern

- Singleton on November 12, 2008Report Duplicate|Flag

Credit Suisse Analyst C

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ummm just look it up?

public class Singleton {

private static Singleton instance = null;

private Singleton() {}

public Singleton getInstance() {

if (instance == null)

instance = new Singleton();

return instance;

}

}

- Anonymous on November 14, 2008 |Flag

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How to make it thread safe ?

- Amit on July 29, 2009 |Flag

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get that static instance to initialise staticly instead of lazily...

do

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7/28/2019 Credit Suisse Interview Question

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privatestatic Singleton instance =new Singleton();

and the getInstance just returns 'instance'. That way you're removing all multithreading concerns

from the singleton mechanism.

- Sam on October 11, 2009 |Flag

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What if there are other variables that need to be present in this class (which is usually the case) and need to be

initialized in the constructor. In that case with what values will you initialize the singleton instance statically?

-Apurvaon February 06, 2012 |Flag

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