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| Interview Questions and Answers for 'FatWire' - 2 question(s) found - Order By Newest | ||||
 Very frequently asked. Favorite question in Walk in Drive of many Indian service companies. Frequently asked in HCL Technologies, TCS and Accenture. | ||||
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| Ans. final - constant variable, objects cannot be de-referenced, restricting method overriding, restricting class sub classing. finally - handles exception. The finally block is optional and provides a mechanism to clean up regardless of what happens within the try block. Use the finally block to close files or to release other system resources like database connections, statements etc. finalize() - method helps in garbage collection. A method that is invoked before an object is discarded by the garbage collector, allowing it to clean up its state. | ||||
 Sample Code for final Sample Code for finally Sample Code for finalize | ||||
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 Discuss Correct / Improve  java oops final finally finalize final vs finally vs finalize  Asked in 61 Companies  basic  frequent | ||||
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| Which of the following combination of keywords is illegal in Java ? a. static and transient b. transient and final c. static and synchronized d. abstract and final | ||||
| What is a final method ? | ||||
| Which keyword is used to provide explicit access of a code block to single thread ? a. Transient b. Final c. Explicit d. Synchronized | ||||
| Enums cannot be declared .. | ||||
| What is a Final Variable ? | ||||
| Should we override finalize method ? | ||||
| Will the static block be executed in the following code ? Why ? | ||||
| Can we override compareTo method for Enumerations ? | ||||
| Very Frequently asked. Favorite question in walkins and telephonic interviews. Usually among first few questions. Asked in different variants. Must know for intermediate and expert professionals.Among Top 10 frequently asked questions. | ||||
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| Ans. A Class must override the hashCode method if its overriding the equals method. | ||||
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| Discuss Correct / Improve java collections hashcode hash code equals collections Asked in 44 Companies intermediate frequent | ||||
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| Related Questions | ||||
| Which String class does not override the equals() and hashCode() methods, inheriting them directly from class Object? | ||||
| Write a class and override the equals and hashcode method ? | ||||
| How many threads can access a concurrent hashmap when the hashcode is overridden and always returns a zero. | ||||
