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Interview Questions and Answers for 'Interglobe technologie' - 2 question(s) found - Order By Rating | ||||
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Ans. Maven is a build automation tool used primarily for Java projects. | ||||
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Like Discuss Correct / Improve  maven  build Asked in 6 Companies basic   frequent | ||||
Related Questions | ||||
What is a transitive dependency ? Can we override Transitive Dependency version and If Yes, how ? | ||||
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How do you resolve Maven Dependencies issue while upgrading dependencies versions ? | ||||
What is Maven's order of inheritance? | ||||
What is a Mojo? | ||||
Where do we configure repositories in Maven ? | ||||
What are different type of repositories in Maven ? | ||||
How does Maven looks for a resource ? | ||||
Advanced level question. Frequently asked in High end product companies. Frequently asked in Google , Cognizant and Deloitte ( Based on 2 feedback ) | ||||
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Ans. 1. String Pool - When a string is created and if it exists in the pool, the reference of the existing string will be returned instead of creating a new object. If string is not immutable, changing the string with one reference will lead to the wrong value for the other references. Example - String str1 = "String1"; String str2 = "String1"; // It doesn't create a new String and rather reuses the string literal from pool // Now both str1 and str2 pointing to same string object in pool, changing str1 will change it for str2 too 2. To Cache its Hashcode - If string is not immutable, One can change its hashcode and hence it's not fit to be cached. 3. Security - String is widely used as parameter for many java classes, e.g. network connection, opening files, etc. Making it mutable might possess threats due to interception by the other code segment. | ||||
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Like Discuss Correct / Improve  java   oops   string   string class   immutable  immutability   advanced Asked in 39 Companies expert   frequent | ||||
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