Here you can find the source of expandAllNodes(JTree tree, int startingIndex, int rowCount)
public static void expandAllNodes(JTree tree, int startingIndex, int rowCount)
//package com.java2s; /*/*from www.j a va 2s . c o m*/ * Copyright 2015 lixiaobo * * VersionUpgrade project licenses this file to you under the Apache License, * version 2.0 (the "License"); you may not use this file except in compliance * with the License. You may obtain a copy of the License at: * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the * License for the specific language governing permissions and limitations * under the License. */ import javax.swing.JTree; public class Main { public static void expandAllNodes(JTree tree, int startingIndex, int rowCount) { for (int i = startingIndex; i < rowCount; ++i) { tree.expandRow(i); } if (tree.getRowCount() != rowCount) { expandAllNodes(tree, rowCount, tree.getRowCount()); } } }