Here you can find the source of showTooltipNow(JComponent c)
public static void showTooltipNow(JComponent c)
//package com.java2s; /******************************************************************************* * Copyright (c) OSMCB developers//from w ww . j ava2 s. c om * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. ******************************************************************************/ import java.awt.event.ActionEvent; import javax.swing.Action; import javax.swing.JComponent; public class Main { public static void showTooltipNow(JComponent c) { Action toolTipAction = c.getActionMap().get("postTip"); if (toolTipAction != null) { ActionEvent postTip = new ActionEvent(c, ActionEvent.ACTION_PERFORMED, ""); toolTipAction.actionPerformed(postTip); } } }