Interface TreeNode
- All Known Subinterfaces:
- MutableTreeNode
- All Known Implementing Classes:
- AbstractDocument.AbstractElement, AbstractDocument.BranchElement, AbstractDocument.LeafElement, DefaultMutableTreeNode, DefaultStyledDocument.SectionElement, HTMLDocument.BlockElement, HTMLDocument.RunElement, JTree.DynamicUtilTreeNode
public interface TreeNode
Defines the requirements for an object that can be used as a tree node in a JTree.
Implementations of TreeNode that override equals will typically need to override hashCode as well. Refer to TreeModel for more information. For further information and examples of using tree nodes, see How to Use Tree Nodes in The Java Tutorial.
Methods
| Modifier and Type | Method and Description |
|---|---|
Enumeration |
children() Returns the children of the receiver as an |
boolean |
getAllowsChildren() Returns true if the receiver allows children. |
TreeNode |
getChildAt(int childIndex) Returns the child |
int |
getChildCount() Returns the number of children |
int |
getIndex(TreeNode node) Returns the index of |
TreeNode |
getParent() Returns the parent |
boolean |
isLeaf() Returns true if the receiver is a leaf. |
Methods
getChildAt
TreeNode getChildAt(int childIndex)
Returns the child TreeNode at index childIndex.
getChildCount
int getChildCount()
Returns the number of children TreeNodes the receiver contains.
getParent
TreeNode getParent()
Returns the parent TreeNode of the receiver.
getIndex
int getIndex(TreeNode node)
Returns the index of node in the receivers children. If the receiver does not contain node, -1 will be returned.
getAllowsChildren
boolean getAllowsChildren()
Returns true if the receiver allows children.
isLeaf
boolean isLeaf()
Returns true if the receiver is a leaf.
children
Enumeration children()
Returns the children of the receiver as an Enumeration.
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https://docs.oracle.com/javase/8/docs/api/javax/swing/tree/TreeNode.html