Problem in java.util.Set.addAll() method

Posted by Yatendra Goel on Stack Overflow See other posts from Stack Overflow or by Yatendra Goel
Published on 2010-04-16T12:36:48Z Indexed on 2010/04/16 12:43 UTC
Read the original article Hit count: 210

Filed under:

java

|

set

I have a java.util.Set<City> cities and I need to add cities to this set in 2 ways:

By adding individual city (with the help of cities.add(city) method call)
By adding another set of cities to this set (with the help of cities.addAll(anotherCitiesSet) method call)

But the problem in second approach is that i don't know whether there were any duplicate cities in the anotherCitiesSet.

I want to do some processing whenever a duplicate entry is tried to be entered in thecities set.

© Stack Overflow or respective owner

Related posts about java

Tomcat 6: Access Control Exception?

as seen on Server Fault - Search for 'Server Fault'
I'm trying to setup a tomcat6 server, and I'm trying to match another setup someone else established. However, my deployment (default Ubuntu install) uses a policy.d/ directory structure, and the established server just uses a catalina.policy file. I've tried setting every entry in policy.d to match… >>> More
Problem in creation MDB Queue connection at Jboss StartUp

as seen on Stack Overflow - Search for 'Stack Overflow'
I am not able to create a Queue connection in JBOSS4.2.3GA Version & Java1.5, as I am using MDB as per the below details. I am putting this MDB in a jar file(named utsJar.jar) and copied it in deploy folder of JBOSS, In the test env. this MDB works well but in another env. [ env settings and… >>> More
failing to establish connection between Postgres db and gwt

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi, I am using Postgres and gwt 2.0 for one of my applications. I am facing problem connecting to the database. When I try to connect it gives "ClassNotFoundException". Here is what I get when I try to connect to database: java.lang.ClassNotFoundException: org.postgresql.Driver at java.net… >>> More
failing to establish connection between postgre db and gwt

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi, For i am using postgre and gwt 2.0 for one of my applications. I am facing problem connecting to the database. When i try to connect it gives "ClassNotFoundException". Here is what i get when i try to connect to database: java.lang.ClassNotFoundException: org.postgresql.Driver at java.net… >>> More
Migration and deployement problems JBoss 4.2.2.GA to JBoss 6.0.0.M2

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi, I'm trying to migrate an application running on JBoss 4.2.2.GA to JBoss 6.0.0.M2 I give you some log to explain my problem : boot.log : 2010-03-16 09:59:29,406 ERROR [org.jboss.system.server.profileservice.ProfileServiceBootstrap] (Thread-2) Failed to load profile: Summary of incomplete deployments… >>> More

Related posts about set

Allowing connections initiated from outside

as seen on Server Fault - Search for 'Server Fault'
I've got an old Juniper SSG5 running ScreenOS 5.4.0r6.0. Once a day, more or less, it'll start randomly dropping packets at a rate of ~5-10%. We currently solve this issue by simply rebooting the unit, after which it resumes working in perfect condition. As this error has started appearing randomly… >>> More
Outbound traffic being blocked for MIP/VIPped servers (Juniper SSG5)

as seen on Server Fault - Search for 'Server Fault'
As we've been having some problems with sporadic packet loss, I've been preparing a replacement router (also an SSG5) for our current Juniper SSG5. I've setup the new SSG5 identically to the old one. We have a /29 IP range with a single IP setup as a MIP map to a server and two others being used… >>> More
dbus dependency with yum

as seen on Server Fault - Search for 'Server Fault'
Whenever, I try and run yum update I get the following error: [root@server ~]# yum update Loaded plugins: dellsysid, fastestmirror Loading mirror speeds from cached hostfile * base: mirror01.idc.hinet.net * extras: mirror01.idc.hinet.net * rpmforge: fr2.rpmfind.net * updates: mirror01.idc.hinet… >>> More
Juniper SSG-5 subinterface vlan routing to the internet

as seen on Server Fault - Search for 'Server Fault'
I'm unable to get a brand new Juniper SSG-5 with latest 6.3.0r05 firmware routing to the internet from a subinterface I created on bgroup0 setup as vlan2 (bgroup0.1 on "wifi" zone). When connected on the default vlan it gets on the internet just fine. When I switch to vlan2 I'm unable to get to the… >>> More
append set to another set

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi Is there a better way of appending a set to another set than iterating through each element ? i have : set<string> foo ; set<string> bar ; ..... for (set<string>::const_iterator p = foo.begin( );p != foo.end( ); ++p) bar.insert(*p); Is there a more efficient way to… >>> More