OpenJDK 27 · javax.swing.tree.TreeNode · APIdia, the JavaDoc alternative

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 javax.swing.tree.TreeModel for more information. For further information and examples of using tree nodes, see How to Use Tree Nodes in The Java Tutorial.

Method Summary

Modifier and Type	Method and Description
public Enumeration<? extends TreeNode>	Returns: the children of the receiver as an `Enumeration` children() Returns the children of the receiver as an `Enumeration`.
public boolean	Returns: whether the receiver allows children getAllowsChildren() Returns true if the receiver allows children.
public TreeNode	Returns: the child node at given index getChildAt(int index of child childIndex) Returns the child `TreeNode` at index `childIndex`.
public int	Returns: the number of children the receiver contains getChildCount() Returns the number of children `TreeNode`s the receiver contains.
public int	Returns: index of specified node getIndex(TreeNode node to be looked for node) Returns the index of `node` in the receivers children.
public TreeNode	Returns: the parent of the receiver getParent() Returns the parent `TreeNode` of the receiver.
public boolean	Returns: whether the receiver is a leaf isLeaf() Returns true if the receiver is a leaf.

Method Detail

children back to summary

children	back to summary
public Enumeration<? extends TreeNode> children() Returns the children of the receiver as an `Enumeration`. Returns:Enumeration<? extends TreeNode> the children of the receiver as an `Enumeration`

public Enumeration<? extends TreeNode> children()

Returns the children of the receiver as an Enumeration.

Returns:Enumeration<? extends TreeNode>: the children of the receiver as an Enumeration

getAllowsChildren	back to summary
public boolean getAllowsChildren() Returns true if the receiver allows children. Returns:boolean whether the receiver allows children

getAllowsChildren

back to summary

public boolean getAllowsChildren()

Returns true if the receiver allows children.

Returns:boolean: whether the receiver allows children

getChildAt back to summary

getChildAt	back to summary
public TreeNode getChildAt(int childIndex) Returns the child `TreeNode` at index `childIndex`. Parameters childIndex:int index of child Returns:TreeNode the child node at given index

public TreeNode getChildAt(int childIndex)

Returns the child TreeNode at index childIndex.

Parameters

childIndex:int: index of child

Returns:TreeNode

the child node at given index

getChildCount back to summary

getChildCount	back to summary
public int getChildCount() Returns the number of children `TreeNode`s the receiver contains. Returns:int the number of children the receiver contains

public int getChildCount()

Returns the number of children TreeNodes the receiver contains.

Returns:int: the number of children the receiver contains

getIndex back to summary

getIndex	back to summary
public int getIndex(TreeNode node) Returns the index of `node` in the receivers children. If the receiver does not contain `node`, -1 will be returned. Parameters node:TreeNode node to be looked for Returns:int index of specified node

public int getIndex(TreeNode node)

Returns the index of node in the receivers children. If the receiver does not contain node, -1 will be returned.

Parameters

node:TreeNode: node to be looked for

Returns:int

index of specified node

getParent back to summary

getParent	back to summary
public TreeNode getParent() Returns the parent `TreeNode` of the receiver. Returns:TreeNode the parent of the receiver

public TreeNode getParent()

Returns the parent TreeNode of the receiver.

Returns:TreeNode: the parent of the receiver

isLeaf	back to summary
public boolean isLeaf() Returns true if the receiver is a leaf. Returns:boolean whether the receiver is a leaf

isLeaf

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public boolean isLeaf()

Returns true if the receiver is a leaf.

Returns:boolean: whether the receiver is a leaf

public Interface TreeNode

Method Summary

Method Detail