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Questions tagged [stringbuilder]

Stringbuilder is a class that provides a convenient and efficient way of working with text data in Java and .NET framework.

Stringbuilder is a class that provides a convenient and efficient way of working with text data. Implementation of the stringbuilder can be found in .NET framework and Java.

The very idea of the class is being a character array with the capability to insert and append new characters. It avoids copying the strings in the memory, hence improves the performance.

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Difference between StringBuilder and StringBuffer

What is the main difference between StringBuffer and StringBuilder? Is there any performance issues when deciding on any one of these?
blacktiger
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StringBuilder vs String concatenation in toString() in Java

Given the 2 toString() implementations below, which one is preferred: public String toString(){ return "{a:"+ a + ", b:" + b + ", c: " + c +"}"; } or public String toString(){ StringBuilder sb = new StringBuilder(100); return…
non sequitor
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How can I clear or empty a StringBuilder?

I'm using a StringBuilder in a loop and every x iterations I want to empty it and start with an empty StringBuilder, but I can't see any method similar to the .NET StringBuilder.Clear in the documentation, just the delete method which seems overly…
Hans Olsson
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Remove last character of a StringBuilder?

When you have to loop through a collection and make a string of each data separated by a delimiter, you always end up with an extra delimiter at the end, e.g. for (String serverId : serverIds) { sb.append(serverId); sb.append(","); } Gives…
Matthew
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How to append a newline to StringBuilder

I have a StringBuilder object, StringBuilder result = new StringBuilder(); result.append(someChar); Now I want to append a newline character to the StringBuilder. How can I do it? result.append("/n"); Does not work. So, I was thinking about…
Illep
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String, StringBuffer, and StringBuilder

Please tell me a real time situation to compare String, StringBuffer, and StringBuilder?
JavaUser
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Does JavaScript have a built in stringbuilder class?

I see a few code project solutions. But is there a regular implementation in JavaScript?
leora
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Is String.Format as efficient as StringBuilder

Suppose I have a stringbuilder in C# that does this: StringBuilder sb = new StringBuilder(); string cat = "cat"; sb.Append("the ").Append(cat).(" in the hat"); string s = sb.ToString(); would that be as efficient or any more efficient as…
lomaxx
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How can we prepend strings with StringBuilder?

I know we can append strings using StringBuilder. Is there a way we can prepend strings (i.e. add strings in front of a string) using StringBuilder so we can keep the performance benefits that StringBuilder offers?
burnt1ce
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Is it better to reuse a StringBuilder in a loop?

I've a performance related question regarding use of StringBuilder. In a very long loop I'm manipulating a StringBuilder and passing it to another method like this: for (loop condition) { StringBuilder sb = new StringBuilder(); …
Pier Luigi
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Best way to remove the last character from a string built with stringbuilder

I have the following data.AppendFormat("{0},",dataToAppend); The problem with this is that I am using it in a loop and there will be a trialling comma. What is the best way to remove the trailing comma? Do I have to change data to a string the…
Wesley Skeen
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java: use StringBuilder to insert at the beginning

I could only do this with String, for example: String str=""; for(int i=0;i<100;i++){ str=i+str; } Is there a way to achieve this with StringBuilder? Thanks.
user685275
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Newline character in StringBuilder

How do you append a new line(\n\r) character in StringBuilder?
user274364
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Correct way to use StringBuilder in SQL

I just found some sql query build like this in my project: return (new StringBuilder("select id1, " + " id2 " + " from " + " table")).toString(); Does this StringBuilder achieve its aim, i.e reducing memory usage? I doubt that, because in the…
Vaandu
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Best practices/performance: mixing StringBuilder.append with String.concat

I'm trying to understand what the best practice is and why for concatenating string literals and variables for different cases. For instance, if I have code like this StringBuilder sb = new StringBuilder("AAAAAAAAAAAAA") …
Nick Rolando
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