Here you can find the source of addComponents(JPanel panel, JComponent... comps)
public static void addComponents(JPanel panel, JComponent... comps)
//package com.java2s; /*// w w w. j a v a 2 s . c o m * "BSLib", Brainstorm Library. * Copyright (C) 2017 by Sergey V. Zhdanovskih. * * 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 3 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 javax.swing.*; public class Main { public static void addComponents(JPanel panel, JComponent... comps) { for (JComponent comp : comps) { panel.add(comp); } } }