BE THE CODER > Tools and Libs > Google Guava Examples > Collections

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 Lists.transform() API. It transforms the given source list to target list by applying Function callback.

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


package com.bethecoder.tutorials.guava.collection_tests;



import java.util.List;



import com.google.common.base.Function;

import com.google.common.collect.Lists;



public class ListTransformTest {



  /**

   * @param args

   */

  public static void main(String[] args) {

    List<Integer> intList = Lists.newArrayList(1, 2, 3, 4, 5, 6);

    System.out.println(intList);

    

    List<String> transList = Lists.transform(intList, new Function<Integer, String>() {



      @Override

      public String apply(Integer input) {

        return "BTC-" + input; //new value in transformed list

      }

      

    });

    

    System.out.println(transList);

  }



}

List Transform