How is StrBuilder from Apache Commons different from Java's StringBuilder?
In Apache Commons I see StrBuilder is deprecated.
import org.apache.commons.lang3.text.StrBuilder;
StrBuilder sb = new StrBuilder();
Can I use Java's StringBuilder instead?
java.lang.StringBuilder
StringBuilder sb1=new StringBuilder();
From my understanding, it closely resembles the Java StringBuilder's design but adds additional functionality to it. From the Apache Common Lang's JavaDoc, the main differences are:
- Not synchronized
- Not final
Subclasses have direct access to character array
Additional methods
appendWithSeparators - adds an array of values, with a separator
- appendPadding - adds a length padding characters
- appendFixedLength - adds a fixed width field to the builder
- toCharArray/getChars - simpler ways to get a range of the character array
- delete - delete char or string
- replace - search and replace for a char or string
- leftString/rightString/midString - substring without exceptions
- contains - whether the builder contains a char or string
size/clear/isEmpty - collections style API methods
Views
asTokenizer - uses the internal buffer as the source of a StrTokenizer
- asReader - uses the internal buffer as the source of a Reader
- asWriter - allows a Writer to write directly to the internal buffer
To answer whether or not you can use it, StrBuilder was depracated in newer versions in favor of org.apache.commons.text.TextStringBuilder. This was done to avoid confusion with StringBuilder.
