stringbuilder Questions
1
Solved
In scenarios where I am using 5-10 replacements is it necessary to use stringbuilder.
String someData = "......";
someData = someData.replaceAll("(?s)<tag_one>.*?</tag_one>", "");
some...
Petal asked 22/12, 2017 at 10:32
5
Solved
I need a way to read all sections/keys of ini file in a StringBuilder variable:
[DllImport("kernel32.dll")]
private static extern int GetPrivateProfileString(string lpAppName, string lpKeyName, st...
Cordwood asked 17/8, 2011 at 8:48
1
Solved
While investigating a performance test result I found the following stack trace reported in Java Flight Recorder's "Hot Methods":
Stack Trace Sample Count Percentage(%)
----------- ------------ --...
Merwyn asked 1/12, 2017 at 9:28
8
Solved
What is the default capacity of a StringBuilder?
And when should (or shouldn't) the default be used?
Surrounding asked 29/10, 2008 at 9:23
1
My method below needs to return a String concatenated from strings.
StringBuilder sb = new StringBuilder();
sb.append("count: ").append(this.count()).append( "\n");
return sb.toString();
In In...
Johannesburg asked 4/10, 2017 at 21:25
2
Solved
In JDK 8, StringBuffer class has a toStringCache, while StringBuilder doesn't.
/**
* A cache of the last value returned by toString. Cleared
* whenever the StringBuffer is modified.
*/
private ...
Karylkarylin asked 19/9, 2017 at 7:33
2
Solved
Is it true that StringBuilder is slower than concatenate a dozen of strings?
How does compiler optimize the string concatenation so that joining a dozen of strings using "+" will be better than Str...
Vandavandal asked 11/9, 2017 at 8:44
2
Solved
I was trying to figure out when to use or why capacity() method is different from length() method of StringBuilder or StringBuffer classes.
I have searched on Stack Overflow and managed to come up...
Notation asked 6/9, 2017 at 9:24
9
Solved
When doing concatenating lots of strings, I have been recommended to do it using a StringBuilder as such:
StringBuilder someString = new StringBuilder("abc");
someString.append("def");
someString....
Glendon asked 11/2, 2011 at 4:3
8
Solved
Suppose our application have only one thread. and we are using StringBuffer then what is the problem?
I mean if StringBuffer can handle multiple threads through synchronization, what is the proble...
Rubstone asked 30/5, 2011 at 9:2
4
Solved
Today I was reading Antonio's Blog about toString() performance and there is a paragraph:
What used to be considered evil yesterday (“do not concatenate Strings with + !!!“), has become cool an...
Worry asked 24/5, 2017 at 4:58
3
Solved
To concatenate String we often use StringBuilder instead of String + String, but also we can do the same with String.format which returns the formatted string by given locale, format and arguments....
Piotrowski asked 22/5, 2017 at 16:24
3
Solved
When I have an empty StringBuilder with a capacity of 5 and I write "hello, world!" to it, does the C# standard specify the new capacity of the StringBuilder? I have a vague memory that it's twice ...
Neogene asked 25/9, 2011 at 18:59
13
Solved
What is the difference between string and StringBuilder?
Also, what would be some examples for understanding?
Tallbot asked 18/6, 2010 at 12:9
5
Solved
I have the following code:
StringBuilder data = new StringBuilder();
for (int i = 0; i < bytes1; i++)
{
data.Append("a");
}
byte[] buffer = Encoding.ASCII.GetBytes(data);
But I get this er...
Cleary asked 2/2, 2012 at 3:41
6
Solved
The following code sort of works, but fixes the number of elements in String[]. Is there a way to make a String[] add the number of elements needed dynamically?
private static StringBuilder names ...
Bolection asked 12/8, 2010 at 21:33
6
Solved
Is there a way to append two string builders?
And if so - does it perform better than appending a string to a StringBuilder ?
Affiant asked 23/6, 2011 at 13:0
8
Solved
I have a condition that a StringBuilder keeps storing lines matching a pattern from a large flat file (100's of MB). However after reaching a condition I write the content of the StringBuilder vari...
Incompressible asked 12/9, 2013 at 14:18
2
Solved
I have a StringBuffer initialized outside for loop and inside for loop I am concatenating some strings.
I am getting the warning
'StringBuffer stringBuffer' may be declared as 'StringBuilder'...
Reason asked 30/3, 2017 at 3:36
4
Solved
I know that Javac compiler is able to transform String concatenation + using StringBuilder/StringBuffer, and I'm curious to know starting from which version this change was introduced?
I'm using t...
Alessandraalessandria asked 27/2, 2017 at 14:15
2
Solved
I know that in more recent Java versions string concatenation
String test = one + "two"+ three;
Will get optimized to use a StringBuilder.
However will a new StringBuilder be generated each tim...
Passionate asked 26/10, 2016 at 16:29
2
Solved
I was reading this documentation page, http://developer.android.com/reference/android/util/Log.html.
The section here caught my eye:
Tip: Don't forget that when you make a call like
Log.v(TA...
Medea asked 18/12, 2011 at 18:32
1
I have the following piece of code in Java.
String foo = " ";
Method 1:
StringBuffer buf = new StringBuffer();
buf.append("Hello");
buf.append(foo);
buf.append("World");
Method 2:
StringB...
Dey asked 7/6, 2016 at 7:14
15
Solved
What is the difference between String and StringBuffer in Java?
Is there a maximum size for String?
They asked 13/3, 2010 at 17:25
6
Solved
I'm trying to use stringbuilder to create a body of string to be used in a text (not HTML) email. However some lines (where i include dynamic data, a new line is not added, but in some the newline ...
Hogback asked 22/6, 2012 at 12:4
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