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 Tools and Libs > Commons Lang3 > Strings > Contains Only

Contains Only 

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.containsOnly() API. It returns TRUE if the given char sequence contains only the search characters.

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

import org.apache.commons.lang3.StringUtils;

public class ContainsOnlyTest {

  /**
   @param args
   */
  public static void main(String[] args) {
    System.out.println(StringUtils.containsOnly(null, 'a'));
    System.out.println(StringUtils.containsOnly("abc"'b'));
    System.out.println(StringUtils.containsOnly("acbccbba"'a''b''c'));
    System.out.println(StringUtils.containsOnly("acbccbba""abc".toCharArray()));
  }

}
   

It gives the following output,
false
false
true
true



 
  


  
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