Question
Why Strings in Java are called as Immutable?
Answers
In java, string objects are called immutable as once value has been assigned to a string, it can’t be changed and if changed, a new object is created.
In below example, reference str refers to a string object having value “Value one”.
Java
String str="Value One"; 1
String str="Value One";

 
When a new value is assigned to it, a new String object gets created and the reference is moved to the new object.
Java
str="New Value"; 1
str="New Value";

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