Creating object with names from a String Array

Hi all,
This might be a stupid question .. I have the following method:
     public OptionInputPanel(Option newO, String [] parameter){
          super(new BorderLayout());
          o = newO;
          for (int i = 0; i < parameter.length; i++){
               testB = BorderFactory.createTitledBorder(parameter);
               JFormattedTextField parameter[i] = new JFormattedTextField(); // problem
as you can see I would like to name my text fields with the strings that I have in the parameters array so that I can get their values later on. How can I do it?
Thanks for help
Stan

               JFormattedTextField parameter[i] = new JFormattedTextField(); // problemYou are declare an array of size i, and assigning a single JFormattedTextField to it.
     public OptionInputPanel(Option newO, String [] parameter){
          super(new BorderLayout());
          o = newO;
          JFormattedTextField params[ i ] = new JFormattedTextField();
          for (int i = 0; i < parameter.length; i++){
               testB = BorderFactory.createTitledBorder(parameter[ i ]);
               param[ i ] = new JFormattedTextField(parameter[ i ]);
Resources for Beginners
Sun's basic Java tutorial
Sun's New To Java Center. Includes an overview of what Java is, instructions for setting up Java, an intro to programming (that includes links to the above tutorial or to parts of it), quizzes, a list of resources, and info on certification and courses.
http://javaalmanac.com. A couple dozen code examples that supplement The Java Developers Almanac.
jGuru. A general Java resource site. Includes FAQs, forums, courses, more.
JavaRanch. To quote the tagline on their homepage: "a friendly place for Java greenhorns." FAQs, forums (moderated, I believe), sample code, all kinds of goodies for newbies. From what I've heard, they live up to the "friendly" claim.
Bruce Eckel's Thinking in Java (Available online.)
Joshua Bloch's Effective Java
Bert Bates and Kathy Sierra's Head First Java. This one has been getting a lot of very positive comments lately.

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BufferedImage image = new BufferedImage(colorModel, writableRaster, false, null);Message was edited by:
ben_weisburd
Message was edited by:
ben_weisburd

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        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <configuration>
                    <source>1.6</source>
                    <target>1.6</target>
                    <compilerArgument>-proc:none</compilerArgument>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.bsc.maven</groupId>
                <artifactId>maven-processor-plugin</artifactId>
                <version>2.0.6</version>
                <executions>
                    <execution>
                        <id>process</id>
                        <goals>
                            <goal>process</goal>
                        </goals>
                        <phase>generate-sources</phase>
                        <configuration>
                            
                            <outputDirectory>target/metamodel</outputDirectory>
                        </configuration>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>
</project>In Weblogic 10.3.6 I have enabled JPA2 support by adding the following in commEnv.cmd
@rem Enable JPA 2.0 functionality on WebLogic Server
set PRE_CLASSPATH=%BEA_HOME%\modules\javax.persistence_1.1.0.0_2-0.jar;
%BEA_HOME%\modules\com.oracle.jpa2support_1.0.0.0_2-1.jarApplication which works on WLS 10.3.6 is http://download.oracle.com/otn/nt/middleware/11g/wls/1036/wls1036_dev.zip and the one which is not working is
http://download.oracle.com/otn/nt/middleware/11g/wls/1036/wls1036_win32.exe.
How can I resolve these errors and exceptions? Any help is highly appreciable.
Thanks

Looks like you might have a spelling error in your spring config, or are trying to set a read-only property. BdasInterfaceManagerImpl has been configured as having a method called setBdasInterfaceJdbcDao() : does it?
By the way, we now know that you're writing code for JP Morgan - there's a slight risk that this could bite you in the @ss at some point (there are some malicious people around) you might want to take that into consideration next time!

Error creating Objects with Reflection

This is the code:
try{
     System.out.println("Restart - test 1 - sub == " + sub);
     c = Class.forName(sub);
     con = c.getDeclaredConstructor();
catch(NoSuchMethodException e){
     System.out.println("Unknown event type\t" + e);
}Output:
Restart - test 1 - sub == Mouse
Unknown event type     java.lang.NoSuchMethodException: Mouse.<init>()I have a Mouse class with a declared Constructor. Why can't it find the Constructor?

SquareBox wrote:
almightywiz wrote:
Your code is trying to find the default constructor for your Mouse class. If you don't have a default constructor specified, it will throw the exception you encountered. What does your constructor signature look like?
public Mouse(int weight){
     this.weight = weight;
}How do I get the Constructor if it contains parameters?This is answered in your other thread: Creating objects with relfections And you even marked it correct!
Please don't post the same question multiple times. It leads to people wasting their time duplicating each others' answers, and makes for a fractured discussion.
Edited by: jverd on Apr 26, 2011 3:59 PM

Can we create objects with interface

can we create objects with interface,if yes then where we implement the
methods,can we type cast any object with inerface kind of object,if yes what kind
of objects we can type cast

can we create objects with interface,if yes then where we implement the
methods
Objects are created with classes, not interfaces, which are abstract.
can we type cast any object with inerface kind of object,if yes what kind
of objects we can type cast
Objects may be cast to interfaces, but only if an object's class or one of its superclasses actually implements the interface.

Is it posible to create objects with different names dinamically?

Hi,
I'm creating an app that manages different wireless nodes in a network and I was thinking that I could create a class called Node which would have a constructor that every time I created an object Node, I would pass the address and some other data about the Node and the constructor will save all that data and also create a unique ID for every Node object.
Now the problem is that I need to be able to discover all the nodes in my network every time the user clicks a Ping button. So every time the users clicks Ping I need to do a ping and create as many Node objects as nodes I have in my network. The thing is I don't know how to make it create the node objects with different names so after I've created all the nodes objects I can refer to one of them.
Something like this.
int Id=0;
id++;
Node node+Id = new Node();
I think its not possible to do something like that. If it isn't how can I do to refer to one of the objects I've created?
Thanks.

Twistx77 wrote:
Thanks to both of you. I'll check out the Link and if I can't find the solution there I'll make the array , I don't know how I didn't think about doing that. There are two collections you should study specifically:
First you have the ArrayList which in essense is a growable array. This means you don't have to decide in advance how big it can be.
Second there's the HashMap. It's sometimes called an associate array. Such an array doesn't have fixed position indexes like an ordinary array. Instead each index (called key) is associated with a value but the keys don't have any particular order. Still, given a certain key, finding the corresponding value in a HashMap is almost as fast as an array access.

Funky sync? many new groups with names from Notes field created

I've got a client using Tiger on a G5 iMac, and syncing both with dot mac to a PowerBook, and using PocketMac to a Blackberry (don't get me started about PocketMac and Blackberries.)
Anyway, I figure a sync caused this: today she opened Address Book and about 50 groups with names taken from her Notes field were there (things like "christmas card"). Some of these groups have cards in them, some don't. We had to restore from a backup. We use Backup, and I hope it's smart enough to take care of the sync stuff in the truth database when the next sync happens. I had Backup do a Restore of the entire ~Library/Application Support/Address Book folder.
Anybody seen this before? I'd like to prevent it happening again. Also if there are other files that Backup needs to be told to Restore in case this comes up again, I'd appreciate knowing about that, too.
Thanks!

By anychance did you or your wife use any forwarding options under mobile me.

Object/variable name from unknown input

Hello,
Suppose that a program reads data from a file and collects name/address/telephone information. The file contains first-time information and updates. For example a portion of the file could be:
John, 123 Some Ave, 555-1212
Paul, 234 Another Blvd, 555-1234
John, 123 Some Ave, 555-9876
Meaning that John changed his phone number from the first one to the second one.
I thought of creating a person class so that I'd end up with something like this:
person John
- string address = "123 Some Ave"
- int telephone = 5551212
but that created all sorts of problems.
What's the best way to manage a situation like this where you create and update data from a source? I used a file as an example, but it could be user input or whatever.
I just started learning Java a few days ago, so bear with me ;-)
Many thanks in advance!

ironcito wrote:
1) How to name the object when I create it.
person whatever_the_file_says = new person();You don't need to. You should be storing you objects in an array or a Collection.
array[index] = new Person(....); // array
list.add(new Person(....)); // ArrayList
2) How to search if an object by that name already exists.You would iterate over your array and compare each object with your new data. If you use a collection then you need to give Person class an equals method and use contains().
3) Update existing objects.
whatever_the_file_says.telephone = new_valueYour Person class needs to have the appropriate setter method.

Creating object with names from a String Array

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