Scans your site and returns information about your SSL implementation and certificate. Helpful for debugging and validating your SSL configuration.
One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.
Solved
MAP of multiple datatypes
Posted on 2009-04-03
Hi,
I'm new to JAVA and I'm trying to achieve something that the JAVA Map seems to be the solution for, but I'm hitting a wall. Basically I want to have a MAP of values BUT with different data types. That doesn't work (maybe I'm doing something wrong) as it asks me to declare the Map parameterized.
Below is a sample snippet of what I want to do.
Note: I know I can use the Memento pattern to achieve this, but I'm wondering if this is at all possible.
I'm new to JAVA and I'm trying to achieve something that the JAVA Map seems to be the solution for, but I'm hitting a wall. Basically I want to have a MAP of values BUT with different data types. That doesn't work (maybe I'm doing something wrong) as it asks me to declare the Map parameterized.
Below is a sample snippet of what I want to do.
Note: I know I can use the Memento pattern to achieve this, but I'm wondering if this is at all possible.
public class MyClass{
protected Map instance;
public void setName( String sName ){
this.instance.put("sName",sName);
}
public void setDate(Date date){
this.instance.put("date", date)
}
public Map getInstanceState(){
return Collections.unmodifiableMap(this.instance);
}
}
[X]
Welcome to Experts Exchange
Add your voice to the tech community where 5M+ people just like you are talking about what matters.
- Help others & share knowledge
- Earn cash & points
- Learn & ask questions
2
3 Comments
Why not just use a HashMap? (Attached is an example)
import java.util.HashMap;
public class Ex
{
public Ex()
{
HashMap hm=new HashMap();
hm.put("sn","InteractiveMind");
hm.put("size",new Integer(200));
}
public static void main(String[]a)
{new Ex();}
}
Thank you, that works! The compiler (Eclipse) still throws a warning saying the HashMap should be parameterized but it works well.
final snippet:
final snippet:
protected HashMap inst = new HashMap();
/*
* Get the state of the object properties at a specific moment
*
* @return unmodifiable SortedMap (memento of object)
*/
public Map getMemento(){
return Collections.unmodifiableSortedMap( new TreeMap(this.inst) );
}
Featured Post
Question has a verified solution.
If you are experiencing a similar issue, please ask a related question
INTRODUCTION
Working with files is a moderately common task in Java. For most projects hard coding the file names, using parameters in configuration files, or using command-line arguments is sufficient.
However, when your application has vi…
This was posted to the Netbeans forum a Feb, 2010 and I also sent it to Verisign. Who didn't help much in my struggles to get my application signed.
------------------------- Start
The idea here is to target your cell phones with
the correct…
Viewers learn about the “for” loop and how it works in Java. By comparing it to the while loop learned before, viewers can make the transition easily. You will learn about the formatting of the for loop as we write a program that prints even numbers…
How to fix incompatible JVM issue while installing Eclipse
While installing Eclipse in windows, got one error like above and unable to proceed with the installation.
This video describes how to successfully install Eclipse.
How to solve incompa…
Suggested Courses
Course of the Month8 days, 18 hours left to enroll
604 members asked questions and received personalized solutions in the past 7 days.
Join the community of 500,000 technology professionals and ask your questions.