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| Interview Questions and Answers for 'UST Global' - 5 question(s) found - Order By Rating | ||||
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| Ans. There is no specific order in which database fires the triggers if they are for the same operation. If we need to have a specific order for their execution, we should have them all in a stored procedure and the procedure should get executed upon the event. | ||||
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 Discuss Correct / Improve  oracle database triggers sequence of trigger execution sequence in which triggers gets fired  Asked in 1 Companies | ||||
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| Ans. Now the reference points to a new object in memory. If that was the only reference for the previous object , it will be marked for garbage collection. Foe example - Object obj = new Object(); obj = new Object(); object created in first line will be eligible for garbage collection after line 2 as it looses all it's handlers. | ||||
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| Discuss Correct / Improve references objects garbage collection Asked in 1 Companies | ||||
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| This question was recently asked at 'UST Global'.This question is still unanswered. Can you please provide an answer. | ||||
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 Very frequently asked. Favorite question in Walk in Drive of many Indian service companies. | ||||
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| Ans. They are different the way their elements are stored in memory. TreeMap stores the Keys in order whereas HashMap stores the key value pairs randomly. | ||||
 Sample Code for treemap Sample Code for hashmap | ||||
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Discuss Correct / Improve java collections map treemap hashmap treemap vs hashmap Asked in 31 Companies  basic  frequent | ||||
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| 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 294 Companies basic frequent | ||||
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Which of the following collections stores its elements in natural sorting order ?
