When you say String is immutable, what do you mean by that?
Say I have String s = "Ness"
s= s+"Technologies";
What will happen? If the value gets appended, then what is
the meaning of immutable here?
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Answer Posted / haribabu
Once you have assigned a value to a "String Object" (i am
saying an "object" not the "object reference")that value
can never change. This is immutability.
by defining "s = s+Technologies" we are pointing the
REFERENCE to newly created "string object" with the
modified string. So the previous string object is
considered to be lost.
This concept has explained very well in String, I/Os
chapter of Kethy Siera, SCJP 5.
All the best
| Is This Answer Correct ? | 26 Yes | 0 No |
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