StringBuilder s = new StringBuilder("Hello
Mom");s.append(",I mean,Mother");
Response.Write(s.ToString());
String s = "Hello Mom";
s+ = ",I mean Mom";
Response.Write(s);
Which is faster ? which uses the most memory?
Answers were Sorted based on User's Feedback
Answer / debapriya maity
The first one is faster
Second code snippets:3 objects are created
1:s = "Hello Mom"
2:,I mean Mom
3:Hello Mom,I mean Mom
Is This Answer Correct ? | 5 Yes | 1 No |
Answer / debapriya maity
The first one is faster
Second code snippets:3 objects are created
1:s = "Hello Mom"
2:,I mean Mom
3:Hello Mom,I mean Mom
Is This Answer Correct ? | 5 Yes | 2 No |
Answer / parameswaran m
The StringBuilder one is slightly more efficient and uses
less memory. In practice, it is unlikely to make enough of a
difference to matter either way.
Is This Answer Correct ? | 3 Yes | 1 No |
Answer / prasanta khandai
Actually what happens if u add two strings like second one,
then internally it uses the String Builder to call the
append method to add and it converted into the strings again.
so first one is the faster as it appended right ways.
Is This Answer Correct ? | 0 Yes | 1 No |
Answer / jimmy dean
The second one is faster.
In the first example the StringBuilder is initialized with
an initial value. Then the append method is ran, adding
another string to 's'. Then the Write method is called,
which calls the ToString() method of 's'.
Total Steps:
1.) Initialize and set initial value
2.) Append
3.) Write
4.) ToString()
In the second example the String is initialized with an
initial value. Then a string is added onto 's'. Then the
Write method is called.
Total Steps:
1.) Initialize and set initial value
2.) Add String to String
3.) Write
Therefore I would say that the second example is faster, and
uses less memory.
Is This Answer Correct ? | 0 Yes | 3 No |
What are different data types?
What are the types of statement? explain
Can we have multiple classes in a single file?
How we can execute any code even before main method?
Why singleton pattern is better than creating singleton class with static instance?
Can you declare a private method as static?
Why Java is called as purely platform independent..? Explain briefly..dont Give regular answers Explain with your own example..?
What is the importance of finally block in exception handling?
How does JAVA ClassLoader work?
How can u increase the heap size in the memory?
Which java collection does not allow null?
How does Vector implement synchronization?