I am wondering how to make the following code in replacing the JTree component working. Currently I am getting a java.lang.NullPointerException
I would like to select an ancestor DefaultMutableTreeNode and get all descendant DefaultMutableTreeNode of this ancestor in the JTree.
I have a application which uses a JTree. For each n开发者_Python百科ode in the tree, there is a checkbox attached to the node using a customized TreeCellRenderer. When some items of a node are selecte
I have created a jtree with the root node \"RootNode\" and some other n开发者_开发百科odes like \"Node1\",\"Node2\", Node3\".
How do I make my Jtree look like something below, with plus and minus icons that allows expansion and collapse?
I have a DefaultTreeModel containing a subclass of DefaultMutableTreeNode. I have only overridden isLeaf() to always return true because I lazily load the children when the node is expanded. Then, whe
I have a JTree displaying my own TreeModel. The TreeModel is loaded \"on demand\" from a database (somewhat ugly since partially done on the EDT, but thats not my issue here). There is a menu which wi
In GUI,I am displaying one JTree at the left hand side of JPanel. Now for each Node(leaf), on Mouse right click I want to display JPopup menu asking for displaying the statistics about Node in right J
I`m having a homework to create multi room selection for hotel. My idea is by using jTree so I can select more more than one child of jTree. When we use jTree we can select more than 1 option by using
I would like to create an index (1, 1.开发者_Python百科2, 1.3, 2.1 etc.) for each node of a JTree at the time of adding the new node,
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