BE THE CODER > Tools and Libs > Commons Lang3 Examples > Strings

Apache Commons Lang 3.0 is a java library with lot of utilities and reusable components. This requires the library commons-lang3-3.0.1.jar to be in classpath. The following example shows using StringUtils.isWhitespace() API. It returns TRUE if the given string contains only whitespace.

File Name :	com/bethecoder/tutorials/commons_lang/tests/strings/IsWhiteSpaceTest.java
Author :	Sudhakar KV
Email :	[email protected]


package com.bethecoder.tutorials.commons_lang.tests.strings;



import org.apache.commons.lang3.StringUtils;



public class IsWhiteSpaceTest {



  /**

   * @param args

   */

  public static void main(String[] args) {

    System.out.println(StringUtils.isWhitespace(null));

    System.out.println(StringUtils.isWhitespace(""));

    System.out.println(StringUtils.isWhitespace("   "));

    System.out.println(StringUtils.isWhitespace("be the coder"));

  }



}

Is Whitespace