473,408 Members | 1,730 Online
Bytes | Software Development & Data Engineering Community
Post Job

Home Posts Topics Members FAQ

Join Bytes to post your question to a community of 473,408 software developers and data experts.

insert integer as keys in hashtable

can anyone help me?/

i want to insert keys of integer type to a hashtable. i can insert keys of string type in the hashtable. But integer keys not getting inserted.

i am getting exception as

java.lang.ClassCastException: java.lang.Integer cannot be cast to java.lang.String

thank u..
Apr 26 '12 #1
0 1152

Sign in to post your reply or Sign up for a free account.

Similar topics

2
by: MFRASER | last post by:
How do I go about looping through a hash table and removing items. I know how do this in a collectionbase, but can't iterate through the hash table with out getting an error. Here is my sample...
5
by: Dick | last post by:
Hello, I'm trying to serialize a class with a Hashtable within: ' Class code: Imports System.Collections Class clsOptions Public countID As Integer Public persons As New Hashtable End Class
12
by: Marty | last post by:
Hi, Is there a way when using a hashtable in VB.NET to add value of a specific type and retrieve that same value without having to cast it to the original type? Thanks Marty
4
by: Joseph Bergevin | last post by:
Why can't I use an int for a key? Doing so evidently doesn't result in unique IDs being generated. I can convert the array into a delimited string, which works fine, but then I have a good deal of...
1
by: josegomez | last post by:
Hi! I want to use shelve to store lists which are indexed by an integer key. The keys are not concurrent or anything, they are just defined as integer values. However, shelve complains that I...
2
by: TheRomance | last post by:
i have a problem about insert integer to link list. sorry it's too long but i try many times, many ways , it's still have an error function is fix . can't change anything about function. i...
5
by: Jen | last post by:
The usual trick to get around the "collection was modified" problem by looping through the collection backwards by index won't work with a Hashtable because there is no way to access by index,...
5
by: rk2008 | last post by:
I am using Hashtable to keep Key-Value pair of elements. When I add the items to the Hashtable it does not retain the order in which I have added the key-value pair. Is there anyway to retain the...
2
by: Rangasql | last post by:
I am trying to insert integer values to mysql database using the integer variable declared in C++ language, but it is not inserting . it is inserting zeroes , but not the values in the variable. Can...
2
by: sarangrao | last post by:
Application=intOne. Please give methe code?
0
by: emmanuelkatto | last post by:
Hi All, I am Emmanuel katto from Uganda. I want to ask what challenges you've faced while migrating a website to cloud. Please let me know. Thanks! Emmanuel
1
by: nemocccc | last post by:
hello, everyone, I want to develop a software for my android phone for daily needs, any suggestions?
0
by: Hystou | last post by:
There are some requirements for setting up RAID: 1. The motherboard and BIOS support RAID configuration. 2. The motherboard has 2 or more available SATA protocol SSD/HDD slots (including MSATA, M.2...
0
by: Hystou | last post by:
Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can...
0
Oralloy
by: Oralloy | last post by:
Hello folks, I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>". The problem is that using the GNU compilers,...
0
by: Hystou | last post by:
Overview: Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows...
0
tracyyun
by: tracyyun | last post by:
Dear forum friends, With the development of smart home technology, a variety of wireless communication protocols have appeared on the market, such as Zigbee, Z-Wave, Wi-Fi, Bluetooth, etc. Each...
0
agi2029
by: agi2029 | last post by:
Let's talk about the concept of autonomous AI software engineers and no-code agents. These AIs are designed to manage the entire lifecycle of a software development project—planning, coding, testing,...
0
by: conductexam | last post by:
I have .net C# application in which I am extracting data from word file and save it in database particularly. To store word all data as it is I am converting the whole word file firstly in HTML and...

By using Bytes.com and it's services, you agree to our Privacy Policy and Terms of Use.

To disable or enable advertisements and analytics tracking please visit the manage ads & tracking page.