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For example, JTree or another? An XML parser will give it to you straight away. Learn more. Ask Question. Asked 10 years, 1 month ago. Active 8 years, 1 month ago. Viewed 8k times. Alexander Alexander 41 1 1 silver badge 2 2 bronze badges. Active Oldest Votes. Chris Jester-Young Chris Jester-Young k 41 41 gold badges silver badges bronze badges.
Amir Afghani Amir Afghani Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password. Post as a guest Name. Email Required, but never shown. The Overflow Blog. Podcast Cryptocurrency-Based Life Forms.The signatures of the XElement and XAttribute constructors let you pass the contents of the element or attribute as arguments to the constructor. Because one of the constructors takes a variable number of arguments, you can pass any number of child elements.
Of course, each of those child elements can contain their own child elements. For any element, you can add any number of attributes. If the new content already is parented, and is part of another XML tree, the new content is cloned, and the newly cloned content is attached to the XML tree.
The last example in this topic demonstrates this.
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To create a contacts XElementyou could use the following code:. If indented properly, the code to construct XElement objects closely resembles the structure of the underlying XML. The XElement class uses the following constructors for functional construction. Note that there are some other constructors for XElementbut because they are not used for functional construction they are not listed here.
The content parameter is extremely flexible. It supports any type of object that is a valid child of an XElement. The following rules apply to different types of objects passed in this parameter:. An XElement is added as a child element. An XAttribute is added as an attribute. An IEnumerable is enumerated, and these rules are applied recursively to the results.
For any other type, its ToString method is called and the result is added as text content. You can create an XElement that contains simple content with a single method call. To do this, specify the content as the second parameter, as follows:.
You can pass any type of object as the content.You may have seen a lot of XML material make references to descendants, children, parents, or even great grandchildren and wondered to yourself, "Am I reading a family tree or am I learning XML?
How to use XML Notepad to create an XML document
The great benefit about XML is that the document itself describes the structure of data. If any of you have researched your family history, you have probably come across a family tree. At the top of the tree is some early ancestor and at the bottom of the tree are the latest children. With a tree structure you can see which children belong to which parents, which grandchildren belong to which grandparents and many other relationships.
Before you even think about matching up these tree terms with their XML counterparts, it might be helpful to see a real XML document converted into a tree structure. The lemonade. As you can see from the XML document, inventory is the root element.Class 10 Fit Chapter 7 Introduction to XML
When we convert the document over to a tree format, we can see that the inventory element is at the top of the tree. In other words, all other elements are a descendent of the inventory element. We've written up a set of rules to use in figuring out if an element is a child or parent of another element. With these basic rules, you can figure out the relationship of just about any two elements in an XML document.
The next few lessons will go into more detail about descendant, ancestor, child, parent and sibling relationships in an XML document. If you are still attempting to grasp the notion of the XML Tree structure, we recommend that you carefully read through each of these lessons. Advertise on Tizag. XML Code, lemonade.
Construction of an XML tree isn't all that hard to do, as long as you follow some basic rules. XML Tree Rules We've written up a set of rules to use in figuring out if an element is a child or parent of another element.
I would like to transform XML-document to java-tree-structure, but I do not know what is a java-tree-structure? For example, JTree or another? An XML parser will give it to you straight away. Learn more. Ask Question. Asked 10 years, 1 month ago. Active 8 years, 1 month ago. Viewed 8k times.
Alexander Alexander 41 1 1 silver badge 2 2 bronze badges. Active Oldest Votes. Chris Jester-Young Chris Jester-Young k 41 41 gold badges silver badges bronze badges. Amir Afghani Amir Afghani Sign up or log in Sign up using Google.
Sign up using Facebook. Sign up using Email and Password. Post as a guest Name. Email Required, but never shown. The Overflow Blog.
The Overflow How many jobs can be done at home?Microsoft Scripting Guy, Ed Wilson, is here. I am not talking about anything extensive or anything that is even formalized. But I do estimate how long it will take to do something manually, and then I estimate how long it will take to do the same thing with Windows PowerShell. As you may well know, quite often Windows PowerShell wins. But not always. The not always areas are often because I may not know or understand an underlying technology well enough to script it.
Creating XML trees in C# (LINQ to XML)
You might also enjoy reading:. Windows PowerShell is not "magic pixie dust. To successfully automate, I often must know and understand the underlying technology.
The better the Windows PowerShell cmdlets abstract this requirement, the easier it is for a non-expert to automate. But at some point, I need to know what I am doing. To successfully automate firewall stuff, I need to know the relationship between the firewall rules, address, application, interface, and port filters. I also need to understand the relationship between rules, filters, settings, and profiles.
Clearly, there is going to be a bit of reading before I really mess stuff up. This is shown here:. I can see that the XML node does not contain a lot of extremely useful information. The DocumentElement is Users. Nothing I need here.
Although this is interesting, I am trying to see the data. One area that looks promising is InnerXML. It definitely contains the data for all of the user nodes. It is shown here:. This command will clean up the output a bit:. All of these could be useful from a navigation perspective. The following image shows the properties and their associated values:. From all of this, I can see the best path for me to pursue, is to go into the Users node, and look at the individual User objects.
This is shown here—and it takes us back to where we left off yesterday. Well, it helps to know a bit about XML to avoid doing a lot of extra work, such as manually trying to parse by using string methods XML data. XML data is already formatted. I only need to know what it looks like, and I can easily use Windows PowerShell to retrieve the data I need or want. I invite you to follow me on Twitter and Facebook. If you have any questions, send email to me at scripter microsoft.Markup languages are designed for presentation of text in different formats, and it can also be used for transporting and storing data.
This markup language specifies the code for formatting, layout and style of data. This markup code is called Tag.
It mainly concentrates on storing of data, not on displaying of data. Declaring the XML version is very important for each XML document and platform needs to be specified in which it is running. XPath is used to find information in an XML document and contains standard functions. Yes, we can have empty tags in XML. Empty tags are used to indicate elements that have no textual content. Empty tags can be represented as. It can contain:. This comment symbol is applicable for single or multiple lines.
XML - Tree Structure
XML namespaces are used to avoid element name conflicts, and it can be avoided by using prefix before the name. It describes how to display an XML document for a given type.
SGML is large and powerful Standard Generalized markup Language which is used to define descriptions of the structure of different types of electronic document. No, we cannot execute XML, and it is not a programming language to execute. It is just a markup language to represent the data.
Because these characters are used for making tags. XML provides an alternative approach to define own set of markup elements, and it is used for processing and storing data.
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Change your preferences any time. Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. Is there any available structure for this or do I need to create my own if so implementation suggestions would be great.
That is a basic tree structure that can be used for String or any other object. It is fairly easy to implement simple trees to do what you need. All you need to add are methods for add to, removing from, traversing, and constructors. The Node is the basic building block of the Tree. Have a look at javax. They are designed to be used with the JTreePanel but they are, in fact, a pretty good tree implementation and there is nothing stopping you from using it with out a swing interface.
Note that as of Java 9 you may wish not to use these classes as they will not be present in the 'Compact profiles'. I wrote a little library that handles generic trees. It's much more lightweight than the swing stuff. I also have a maven project for it. You should start by defining what a tree is for the domainthis is best done by defining the interface first. Not all trees structures are modifyable, being able to add and remove nodes should be an optional feature, so we make an extra interface for that.
There's no need to create node objects which hold the valuesin fact I see this as a major design flaw and overhead in most tree implementations. Given these interfaces, code that uses trees doesn't have to care much about how the tree is implemented. This allows you to use generic implementations as well as specialized ones, where you realize the tree by delegating functions to another API.
If you're doing whiteboard coding, an interview, or even just planning to use a tree, the verbosity of these is all a little much. It should further be said that the reason a tree is not in there like, say, a Pair about which the same could be saidis because you should be encapsulating your data in the class using it, and the simplest implementation looks like:.
It's not generic, but otherwise seems to fit the bill. Even though it's in the javax. But none of these are sufficient yet small enough for general purpose.