DIGIT Char Matcher 

Google Guava is a java library with lot of utilities and reusable components. This requires the library guava-10.0.jar to be in classpath. The following example shows using CharMatcher.DIGIT char matcher which returns TRUE if the given character is a DIGIT.

File Name  :   com/bethecoder/tutorials/guava/base_tests/DigitCharMatcherTest.java  Author  :   Sudhakar KV Email  :   [email protected]

package com.bethecoder.tutorials.guava.base_tests; import com.google.common.base.CharMatcher; public class DigitCharMatcherTest {   /**    * @param args    */   public static void main(String[] args) {     System.out.println(CharMatcher.DIGIT.apply('a'));     System.out.println(CharMatcher.DIGIT.apply('0'));     System.out.println(CharMatcher.DIGIT.apply('1'));     System.out.println(CharMatcher.DIGIT.apply('9'));   } }

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