java.lang does not contain a class called StringUtils. Several third-party libs do, such as Apache Commons Lang or the Spring framework. Make sure you have the relevant jar in your project classpath and import the correct class.
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java.lang does not contain a class called StringUtils. Several third-party libs do, such as Apache Commons Lang or the Spring framework. Make sure you have the relevant jar in your project classpath and import the correct class.
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StringUtils is an Apache Commons project. You need to download and add the library to your classpath.
To use:
import org.apache.commons.lang3.StringUtils;
Apache Commons
commons.apache.org › proper › commons-lang › apidocs › org › apache › commons › lang3 › StringUtils.html
StringUtils (Apache Commons Lang 3.20.0 API)
Instead, the class should be used as StringUtils.trim(" foo ");.
Apache Commons
commons.apache.org › proper › commons-lang › jacoco › org.apache.commons.lang3 › StringUtils.java.html
StringUtils.java
* * <p>Specifically:</p> * <ul> * <li>If the number of characters in {@code str} is less than or equal to * {@code maxWidth}, return {@code str}.</li> * <li>Else abbreviate it to {@code (substring(str, 0, max-3) + "...")}.</li> * <li>If {@code maxWidth} is less than {@code 4}, throw an * {@link IllegalArgumentException}.</li> * <li>In no case will it return a String of length greater than * {@code maxWidth}.</li> * </ul> * * <pre> * StringUtils.abbreviate(null, *) = null * StringUtils.abbreviate("", 4) = "" * StringUtils.abbreviate("abcdefg", 6) = "abc..."
Spring
docs.spring.io › spring-framework › docs › current › javadoc-api › org › springframework › util › StringUtils.html
StringUtils (Spring Framework 7.0.5 API)
Mainly for internal use within the framework; consider Apache's Commons Lang for a more comprehensive suite of String utilities · This class delivers some simple functionality that should really be provided by the core Java String and StringBuilder classes. It also provides easy-to-use methods ...
Educative
educative.io › answers › what-is-stringutilsright-in-java
What is StringUtils.right() in Java?
import org.apache.commons.lang3.StringUtils; public static String right(final String str, final int len) final String str: The string to get the rightmost characters from. final int len: The length of the rightmost characters to extract from ...
AWS
docs.aws.amazon.com › AWSJavaSDK › latest › javadoc › com › amazonaws › util › StringUtils.html
StringUtils (AWS SDK for Java - 1.12.797)
com.amazonaws.util.StringUtils · public class StringUtils extends Object · Utilities for converting objects to strings. equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait · public static final String COMMA_SEPARATOR · See Also: Constant Field Values ·
Apache Commons
commons.apache.org › proper › commons-codec › apidocs › org › apache › commons › codec › binary › StringUtils.html
StringUtils (Apache Commons Codec 1.21.0 API)
StringUtils() Deprecated. TODO Make private in 2.0. All MethodsStatic MethodsConcrete Methods · Modifier and Type · Method · Description · static boolean · equals · (CharSequence cs1, CharSequence cs2) Compares two CharSequences, returning true if they represent equal sequences of characters.
Experts Exchange
experts-exchange.com › questions › 29223133 › How-can-I-import-StringUtils-difference-into-my-Java-code.html
Solved: How can I import "StringUtils.difference" into my Java code | Experts Exchange
August 26, 2021 - import org.apache.commons.lang3.*; public class Difference { public static void main(String[] args) { try { System.out.println(StringUtils.difference(args[0], args[1])); } catch(Throwable t) { t.printStackTrace(); } } }
Oracle
docs.oracle.com › cd › E55783_02 › Platform.11-2 › apidoc › atg › core › util › StringUtils.html
StringUtils (ATG Java API)
atg.core.util.StringUtils · public class StringUtils extends java.lang.Object · This class contains static methods for performing various operations on Strings.
O'Reilly
oreilly.com › library › view › jakarta-commons-cookbook › 059600706X › ch02s02.html
2.1. Setting Up StringUtils and WordUtils - Jakarta Commons Cookbook [Book]
November 16, 2004 - import org.apache.commons.lang.StringUtils; import org.apache.commons.lang.WordUtils;
Author Timothy M. O'Brien
Published 2004
Pages 400
JavaBeat
javabeat.net › home › how to use stringutils class in java
How to Use StringUtils Class in Java
March 8, 2024 - The StringUtils class offers several methods to check if a string contains numbers, whitespaces, Unicode characters, etc. The below table demonstrates these methods with description and syntax: The given code block creates a numeric string and applies the above-mentioned methods to show how they work: import org.apache.commons.lang3.StringUtils; public class ExampleClass { public static void main(String[] args) { String numString = "123910"; System.out.println("Result of isNumeric Method ==> " + StringUtils.isNumeric(numString)); System.out.println("Result of isNumericSpace Method ==> " + StringUtils.isNumericSpace(numString)); System.out.println("Result of isAlpha Method ==> " + StringUtils.isAlpha(numString)); System.out.println("Result of isAsciiPrintable Method ==> " + StringUtils.isAsciiPrintable(numString)); } }
W3Schools
w3schools.com › java › java_strings.asp
W3Schools.com
assert abstract boolean break byte case catch char class continue default do double else enum exports extends final finally float for if implements import instanceof int interface long module native new package private protected public return requires short static super switch synchronized this throw throws transient try var void volatile while Java String Methods
Apache Commons
commons.apache.org › proper › commons-lang › apidocs › src-html › org › apache › commons › lang3 › StringUtils.html
StringUtils.isBlank - Source code - Apache Software Foundation
ads a String</li> 077 * <li><strong>UpperCase/LowerCase/SwapCase/Capitalize/Uncapitalize</strong> 078 * - changes the case of a String</li> 079 * <li><strong>CountMatches</strong> 080 * - counts the number of occurrences of one String in another</li> 081 * <li><strong>IsAlpha/IsNumeric/IsWhitespace/IsAsciiPrintable</strong> 082 * - checks the characters in a String</li> 083 * <li><strong>DefaultString</strong> 084 * - protects against a null input String</li> 085 * <li><strong>Rotate</strong> 086 * - rotate (circular shift) a String</li> 087 * <li><strong>Reverse/ReverseDelimited</strong> 088
Python
docs.python.org › 3 › library › string.html
string — Common string operations
>>> from string import Template >>> s = Template('$who likes $what') >>> s.substitute(who='tim', what='kung pao') 'tim likes kung pao' >>> d = dict(who='tim') >>> Template('Give $who $100').substitute(d) Traceback (most recent call last): ... ValueError: Invalid placeholder in string: line 1, col 11 >>> Template('$who likes $what').substitute(d) Traceback (most recent call last): ...
Maven Repository
mvnrepository.com › artifact › org.apache.commons › commons-lang3
Maven Repository: org.apache.commons » commons-lang3
November 12, 2025 - Apache Commons Lang, a package of Java utility classes for the classes that are in java.lang's hierarchy, or are considered to be so standard as to justify existence in java.lang. The code is tested using the latest revision of the JDK for supported LTS releases: 8, 11, 17, 21 and 25 currently ...
Educative
educative.io › answers › what-is-stringutilsisblank-in-java
What is StringUtils.isBlank in Java?
You can import the StringUtils class as follows: import org.apache.commons.lang3.StringUtils; public static boolean isBlank(final CharSequence cs) final CharSequence cs: The character sequence/string to check.