string and StringBuilder

Question

I have written two concept for adding or initializing two string just want to know in both concept final str1 reference will be change from starting ?

string str1="A"; str1="B";
string srt1="A"+"B";

Please answer me in concept of stringBuilder

thanks

This question is *extremely* unclear. What are you actually trying to accomplish? — Jon Skeet, Aug 06 '14 at 09:32
When you use `+` between two strings, they are concatenated at compile time. — Matthew Watson, Aug 06 '14 at 09:32
No I means same what I have written ....if I do str1="B" means this will write in other memory location right ? — Kranti Singh, Aug 06 '14 at 09:33
Your `1.` will result in `str1 == "B"`, while `2.` will result in `str1 == "AB"` — Matthew Watson, Aug 06 '14 at 09:34
I am asking in concept of stringBuilder ...both are doing same job means adding 2 character changing address ? — Kranti Singh, Aug 06 '14 at 09:37

score 2 · Answer 1 · edited May 23 '17 at 12:05

2

strings are immutable, its recommended to avoid direct string concatenation frequently or in a large loop. In your case, impact of performance is nil. look at - String vs. StringBuilder

edited May 23 '17 at 12:05

Community

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answered Aug 06 '14 at 09:37

Rabi

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string and StringBuilder

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