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|Interview Questions and Answers
|Ans. The goal of a synchronised block is to achieve mutual exclusion i.e at one time, the segment of the code should be executed by single thread only and hence the lock needs to be retrieved before executing the segment and then released.
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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
| Which keyword is used to provide explicit access of a code block to single thread ?
|How does volatile affect code optimization by compiler?
|Can constructors be synchronized in Java ?
|What is Volatile keyword used for ?
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|Difference between Vector and ArrayList ?
|Difference between StringBuffer and StringBuilder ?
|What is race condition ?
|What is an object's lock and which object's have locks?