dcsimg
LinkedIn
Twitter
RSS Feed
Download our iPhone app
TODAY'S HEADLINES  |   ARTICLE ARCHIVE  |   FORUMS  |   TIP BANK
Browse DevX
Sign up for e-mail newsletters from DevX


Tip of the Day
Language: Java
Expertise: Intermediate
Oct 1, 2018

Using the Java Collections Disjoint Method

See how to use the disjoint method in Collections to find if the given lists are completely disjointed:

import java.util.*;

public class UsingDisjointInCollections {
   
   public static void main(String args[])
   {
      UsingDisjointInCollections usingDisjointInCollections = new UsingDisjointInCollections();
      usingDisjointInCollections.proceed();
   }
   
   private void proceed()
   {
      //Creating 2 lists to compare
      List firstLst = new ArrayList(3);
      List secondList = new ArrayList(3);

      //Populating the first list with some elements
      firstLst.add("It");
      firstLst.add("is");
      firstLst.add("raining");

      //Populating the second list with some elements      
      secondList.add("Its cool");
      secondList.add("weather");
      secondList.add("after");
      secondList.add("raining");      

      //Using disjoint, checking both the lists
      boolean areListsDisjoint = Collections.disjoint(firstLst, secondList);

      System.out.println("Given lists are disjoint: "+areListsDisjoint);    
   }    
}

/*

Expected output:

[root@mypc]# java UsingDisjointInCollections
Given lists are disjoint: false

*/ 
M S Sridhar
 
Close Icon
Thanks for your registration, follow us on our social networks to keep up-to-date