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Core java - Interview Questions and Answers for 'Adnovum' - 1 question(s) found
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Very frequently asked. Usually asked with questions related to String.
Q1.
What is an Immutable Object ?
Core Java
Anonymous
Ans. Object that can't be changed after instantiation.
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java
oops
immutable
immutability
LiveSocialize Technologies
Oracle
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AudioCodes
GCPL Technologies
Infogain
Goldman Sachs
JP Morgan
Incture Technologies
Novell
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Xactly Corp
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Cognizant (CTS)
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AdNovum
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Yatra Online
Multivision (Virginia)
Portware LLC
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Suggestion
Try 2 Question(s) Test
Which of the following class creates mutable objects ?
Boolean
File
String
StringBuffer
Which of the following class creates immutable objects ?
String
StringBuffer
StringBuilder
None of these create immutable objects.
Related Questions
Why is String immutable in Java ?
Why Char array is preferred over String for storing password?
How does making string as immutable helps with securing information ? How does String Pool pose a security threat ?
How is string object immutable if we can concat a string to it ?
What is an immutable class ?
How to implement an immutable class ?
Does Declaring an object "final" makes it immutable ?
What are stateless objects ? How are they different from immutable objects ? Which of these two is thread safe ?
What are advantages of stateless and / or immutable objects ?
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