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General Tech Bugs & Fixes 2 years ago
Posted on 16 Aug 2022, this text provides information on Bugs & Fixes related to General Tech. Please note that while accuracy is prioritized, the data presented might not be entirely correct or up-to-date. This information is offered for general knowledge and informational purposes only, and should not be considered as a substitute for professional advice.
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I have a java class as below
class User { String name; String phone; public String getName() { return name; } public String getPhone() { return phone; } }
The way this class is used is, for every thread 1 object of this User class is created. Now since there is one copy of object for every thread, can i call this class as thread safe?
Do I need to synchronize these methods?
The way you presented it, if each thread has its one copy, then it can be called thread-safe, as maximum of accessing threads is one.
Another thing - if you declare your fields as private and create the instance of that class as final, then it's immutable (final User user = new User(...)). There are no setters, so the object cannot be modified as well as it cannot change its reference. If you wanted to keep the immutability, you would have to make setters return a new instance of this object with changed fields.
private
final
final User user = new User(...)
@markspace noticed, that better approach would be to declare fields as final, because if you use the previous one and make User a member of some class, it won't work (unless final).
User
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