Jtree select nodeRésolu

Question

bonjour
est-t-il possible de sélectionner un nœud dans un arbre juste on passant  par paramètre leur nom.
Par exemple : soit l'arbre suivant
root 
   élément 1
        fils1.1
        fils1.2
        fils1.3
   élément 2
        fils2.1
        fils2.2
   élément 3
Si on passe par paramètre "fils1.2" (ou root, élément 1, fils1.2) donc ce dernier sélectionne directement.

merci d'avance

cs_zemzemi · Accepted Answer

// Search forward from first visible row looking for any visible node
    // whose name starts with prefix.
    int startRow =   0 ;
    String prefix  = "b";
    TreePath path =  tree.getNextMatch(prefix, startRow, Position.Bias.Forward);

    // Search backward from last visible row looking for any visible node
    // whose name starts with prefix.
    startRow =  tree.getRowCount()-1 ;
    prefix  = "b";
    path =  tree.getNextMatch(prefix, startRow, Position.Bias.Backward);

    // Find the path (regardless of visibility) that matches the
    // specified sequence of names
    path = findByName(tree,  new String[]{"JTree", "food", "bananas"} );

    // Finds the path in tree as specified by the node array. The node array is a sequence
    // of nodes where nodes[0] is the root and nodes[i] is a child of nodes[i-1].
    // Comparison is done using Object.equals(). Returns null if not found.
    public TreePath find(JTree tree, Object[] nodes) {
        TreeNode root  = (TreeNode)tree.getModel().getRoot();
        return find2(tree, new TreePath(root), nodes, 0, false);
    }

    // Finds the path in tree as specified by the array of names. The names array is a
    // sequence of names where names[0] is the root and names[i] is a child of names[i-1].
    // Comparison is done using String.equals(). Returns null if not found.
    public TreePath findByName(JTree tree, String[] names) {
        TreeNode root = (TreeNode)tree.getModel().getRoot();
        return find2(tree, new TreePath(root), names, 0, true);
    }
    private TreePath find2(JTree tree, TreePath parent, Object[] nodes, int depth, boolean byName) {
        TreeNode node = (TreeNode)parent.getLastPathComponent();
        Object o = node;

        // If by name, convert node to a string
        if (byName) {
            o = o.toString();
        }

        // If equal, go down the branch
        if (o.equals(nodes[depth])) {
            // If at end, return match
            if (depth == nodes.length-1) {
                return parent;
            }

            // Traverse children
            if (node.getChildCount() >= 0) {
                for (Enumeration e=node.children(); e.hasMoreElements(); ) {
                    TreeNode n = (TreeNode)e.nextElement();
                    TreePath path = parent.pathByAddingChild(n);
                    TreePath result = find2(tree, path, nodes, depth+1, byName);
                    // Found a match
                    if (result != null) {
                        return result;
                    }
                }
            }
        }

        // No match at this branch
        return null;
    }

Jtree select node

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