Extract Number 

OSCore (Open Symphony Core) is a java library with lot of utilities and reusable components. This requires the libraries oscore-2.2.6.jar, mail.jar to be in classpath. The following example shows using TextUtils.extractNumber() API. It extracts the number from given string.

File Name  :   com/bethecoder/tutorials/oscore/ExtractNumberTest.java  Author  :   Sudhakar KV Email  :   [email protected]

package com.bethecoder.tutorials.oscore; import com.opensymphony.util.TextUtils; public class ExtractNumberTest {   /**    * @param args    */   public static void main(String[] args) {     String num = TextUtils.extractNumber("My Phone bill is 1234.56 rupees per month");     System.out.println(num);          num = TextUtils.extractNumber("a1b2c3d4e5f6g7h8");     System.out.println(num);          num = TextUtils.extractNumber("1.2.3.4.5.6");     System.out.println(num);          num = TextUtils.extractNumber("- 1 abc .2 + .3  .4  xyz   5.6");     System.out.println(num);          num = TextUtils.extractNumber("JAVA");     System.out.println(num);   } }

1234.56
12345678
1.23456
-1.23456
0