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.overlay() API. It overlays part of the given string with another string.

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


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



import org.apache.commons.lang3.StringUtils;



public class OverlayTest {



  /**

   * @param args

   */

  public static void main(String[] args) {



    String credit_card = "4840282024288624";

    System.out.println(StringUtils.overlay(credit_card, "****", 0, 4));

    System.out.println(StringUtils.overlay(credit_card, "****", 2, 4));

    System.out.println(StringUtils.overlay(credit_card, "****", 4, 8));

    System.out.println(StringUtils.overlay(credit_card, "****", 8, 12));

  }



}