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 Sets.newHashSet() API. It returns a mutable HashSet object containing the given elements in unspecified order.

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


package com.bethecoder.tutorials.guava.collection_tests;



import java.util.Arrays;

import java.util.Set;



import com.bethecoder.tutorials.guava.common.Student;

import com.google.common.collect.Sets;



public class NewHashSetTest {



  /**

   * @param args

   */

  public static void main(String[] args) {

    Set<String> stringSet = Sets.newHashSet("ONE", "TWO", "THREE");

    System.out.println(stringSet);

    

    Set<Integer> intSets = Sets.newHashSet(1, 2, 3, 4);

    System.out.println(intSets);

    

    Student student = new Student("Sriram", 2, "Chess");

    Student student2 = new Student("Venkat", 28, "Cricket");

    Set<Student> studSets = Sets.newHashSet(Arrays.asList(student, student2));

    System.out.println(studSets);

  }



}

New HashSet