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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.

1966 questions
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Why StringBuilder when there is String?

I just encountered StringBuilder for the first time and was surprised since Java already has a very powerful String class that allows appending. Why a second String class? Where can I learn more about StringBuilder?
an00b
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When to use StringBuilder?

I understand the benefits of StringBuilder. But if I want to concatenate 2 strings, then I assume that it is better (faster) to do it without StringBuilder. Is this correct? At what point (number of strings) does it become better to use…
Shiraz Bhaiji
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String.Join vs. StringBuilder: which is faster?

In a previous question about formatting a double[][] to CSV format, it was suggested that using StringBuilder would be faster than String.Join. Is this true?
Hosam Aly
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StringWriter or StringBuilder

What is the difference between StringWriter and StringBuilder and when should I use one or the other?
MAC
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How to use StringBuilder wisely?

I am little confused about using StringBuilder class, first: A string object concatenation operation always creates a new object from the existing string and the new data. A StringBuilder object maintains a buffer to accommodate the concatenation…
Bartłomiej Sobieszek
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Difference between string and StringBuilder in C#

What is the difference between string and StringBuilder? Also, what would be some examples for understanding?
ratty
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Why StringJoiner when we already have StringBuilder?

I recently encountered with a Java 8 class StringJoiner which adds the String using the delimiters and adds prefix and suffix to it, but I can't understand the need of this class as it also uses StringBuilder at the backend and also performs very…
Hitesh Garg
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What is the difference between String and StringBuffer in Java?

What is the difference between String and StringBuffer in Java? Is there a maximum size for String?
Praveen
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StringBuilder: how to get the final String?

Someone told me that it's faster to concatenate strings with StringBuilder. I have changed my code but I do not see any Properties or Methods to get the final build string. How can I get the string?
Mister Dev
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When do you use StringBuilder.AppendLine/string.Format vs. StringBuilder.AppendFormat?

A recent question came up about using String.Format(). Part of my answer included a suggestion to use StringBuilder.AppendLine(string.Format(...)). Jon Skeet suggested this was a bad example and proposed using a combination of AppendLine and…
Neil Barnwell
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Write StringBuilder to Stream

What is the best method of writing a StringBuilder to a System.IO.Stream? I am currently doing: StringBuilder message = new StringBuilder("All your base"); message.Append(" are belong to us"); System.IO.MemoryStream stream = new…
Andy Joiner
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What is the simplest way to write the contents of a StringBuilder to a text file in .NET 1.1?

I have to use StringBuilder instead of a List of strings because of being stuck with .NET 1.1 for this project. I want to write a series of debug messages I've written to a file to study at my leisure, as there is too much to see on the screen (the…
B. Clay Shannon
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How to check if a StringBuilder is empty?

I must unit test a method that takes a StringBuilder, two items, and fill the StringBuilder with the discrepancies found between the two items. In my first test, I give to it two identical items, so I want to test if the StringBuilder is…
Boiethios
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Am I undermining the efficiency of StringBuilder?

I've started using StringBuilder in preference to straight concatenation, but it seems like it's missing a crucial method. So, I implemented it myself, as an extension: public void Append(this StringBuilder stringBuilder, params string[] args) { …
dlras2
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StringBuffer is obsolete?

In the book "Effective Java", Josh Bloch says that StringBuffer is largely obsolete and should be replaced by the non-synchronized implementation 'StringBuilder' . But in my experience, I've still seen widespread use of the StringBuffer class.…
Varun Achar
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