Here you can find the source of changeMenuItemsState(final JMenu menu, final boolean enableState)
public static final void changeMenuItemsState(final JMenu menu, final boolean enableState)
//package com.java2s; /* // ww w. ja v a 2s . c o m * Copyright 2015 Igor Maznitsa (http://www.igormaznitsa.com). * * Licensed 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.JMenu; import javax.swing.JMenuItem; public class Main { public static final void changeMenuItemsState(final JMenu menu, final boolean enableState) { final int size = menu.getItemCount(); for (int i = 0; i < size; i++) { final JMenuItem item = menu.getItem(i); item.setEnabled(enableState); } } }