Why there is an isRoot() function in DefaultMutableTreeNode? I ask because I have a Class that extends DefaultMutableTreeNode. I would like to be able to use a single instance of this class in multiple different JTree objects. However, it would seem that isRoot() is a question I should be asking the tree object itself. Can anyone provide any insight as to why this function exists at a node level instead of the tree level?
isRoot() in DefaultMutableTreeNode
303 Views Asked by user3058135 At
1
There are 1 best solutions below
Related Questions in JAVA
- Add image to JCheckBoxMenuItem
- How to access invisible Unordered List element with Selenium WebDriver using Java
- Inheritance in Java, apparent type vs actual type
- Java catch the ball Game
- Access objects variable & method by name
- GridBagLayout is displaying JTextField and JTextArea as short, vertical lines
- Perform a task each interval
- Compound classes stored in an array are not accessible in selenium java
- How to avoid concurrent access to a resource?
- Why does processing goes slower on implementing try catch block in java?
- Redirect inside java interceptor
- Push toolbar content below statusbar
- Animation in Java on top of JPanel
- JPA - How to query with a LIKE operator in combination with an AttributeConverter
- Java Assign a Value to an array cell
Related Questions in TREE
- prolog traverse nonstandard tree left to right
- Why would one use a heap over a self balancing binary search tree?
- recursively editing member variable: All instances have same value
- D3.js collapsable tree - visualise set number of levels
- java - How to generate Tree from two dimensional array
- Haskell, Tree problems
- d3 indented tree close other nodes with child and open only specific node
- Function that return average depth of a binary search tree
- SQL Tree Structure Table
- Java: make prefix tree remember last value that was not null
- C++: no matching function call
- Building SQL tree from random parent updates
- Use significant attributes only, or use full set of attributes to build J48 model after checking information gain?
- Trie Data Structure in Finding an Optimal Solution
- How to store data in a tree structure in R?
Related Questions in ROOT
- MySql can not grant privileges to root
- MariaDB installed without password prompt
- .htaccess root changed with mod_rewrite
- Go root, create tmux, send commands and then attach - all via a single SSH command in a bash script
- PHP: take a path from site root given an absolute path
- Redirect from server root directory to apache root directory
- Access denied for user 'root'@'localhost' (using password: YES) EVEN when the Password works on PhpMyAdmin
- Reading eeprom on linux without root right
- Vanilla Android allow direct SU/Root access
- How do I connect the RIGHT way from One Server SQL to another and make updates?
- How to define custom location for crossdomain.xml file?
- MySQL: Access denied for user 'root'@'localhost' Mac osx
- Control another tab bar controller's view to root view by Swift code
- Get the output from executed commands through android app
- Is it possible to pipe the password to login as root , rather that typing the password when it prompts in command line?? - Korn shell
Related Questions in JTREE
- How to add children nodes to the last parent node
- TreeView - Jtree (NetBeans) How to add a description to a node
- JTree representing a graph
- Java Swing: JTree DefaultMutableTreeNode not updating
- jtree high DPI does not scale
- Dynamically add nodes in an JTree
- jtree drag and drop to panel as object
- How to set the background of tooltip in Swing?
- Sort JTree nodes alphabetically
- JTree Java code, Having error of cannot load main class, even it is having main class
- Jtree removeFromParent() creates whitespace
- Is there a way to do drag and drop in my Jtree?
- Java JTree truncates my nodes after reloading model and setting selection path
- JTree with expandable empty parents
- Java JTree's ui refresh after removing node from parent
Related Questions in DEFAULTMUTABLETREENODE
- JTree representing a graph
- Dynamically add nodes in an JTree
- ClassCastException while Drag and Drop in a JTree
- xml to jtree parsing in java
- JTree add child to child to child etc
- Hardcoding values in Java
- isRoot() in DefaultMutableTreeNode
- I already have a checkbox in a Java Swing TreeNode. But how do I make it checkable?
- How would one convert a JSONObject into a DefaultMutableTreeNode in java?
- JTree, setUserObject(), toString()
- JTree avoid collapse after reload
- Java remove focusPainted on DefaultMutableTreenNode in JTree
- JTree disable highlight effect on certain nodes
- "AWT-EventQueue-0" java.lang.StackOverflowError - While trying to create JTree folder structure
- TreeView nodes names bugging
Trending Questions
- UIImageView Frame Doesn't Reflect Constraints
- Is it possible to use adb commands to click on a view by finding its ID?
- How to create a new web character symbol recognizable by html/javascript?
- Why isn't my CSS3 animation smooth in Google Chrome (but very smooth on other browsers)?
- Heap Gives Page Fault
- Connect ffmpeg to Visual Studio 2008
- Both Object- and ValueAnimator jumps when Duration is set above API LvL 24
- How to avoid default initialization of objects in std::vector?
- second argument of the command line arguments in a format other than char** argv or char* argv[]
- How to improve efficiency of algorithm which generates next lexicographic permutation?
- Navigating to the another actvity app getting crash in android
- How to read the particular message format in android and store in sqlite database?
- Resetting inventory status after order is cancelled
- Efficiently compute powers of X in SSE/AVX
- Insert into an external database using ajax and php : POST 500 (Internal Server Error)
Popular Questions
- How do I undo the most recent local commits in Git?
- How can I remove a specific item from an array in JavaScript?
- How do I delete a Git branch locally and remotely?
- Find all files containing a specific text (string) on Linux?
- How do I revert a Git repository to a previous commit?
- How do I create an HTML button that acts like a link?
- How do I check out a remote Git branch?
- How do I force "git pull" to overwrite local files?
- How do I list all files of a directory?
- How to check whether a string contains a substring in JavaScript?
- How do I redirect to another webpage?
- How can I iterate over rows in a Pandas DataFrame?
- How do I convert a String to an int in Java?
- Does Python have a string 'contains' substring method?
- How do I check if a string contains a specific word?
The tree object can't be the root of the tree; the JTree object isn't a node.
DefaultMutableTreeNode is designed to facilitate recursive traversal of the tree. Since a recursive method processing the tree will only have access to one node (and its subsequent nodes) at a time, the only way for the method to distinguish the root of the tree is for the nodes to inidivdually keep track of whether or not they are the root of the tree.