jsugar

*.class

 * Main.java - (Temporary) Main file in which the functionality is put.

 * Copyright © 2016 Maarten "Vngngdn" Vangeneugden

 * 

 * 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 <https://www.gnu.org/licenses/>.

 */

/**

 * Main class for the program.

 *

 * In this class, all parts of the program are being brought together, and their

 * functionality is 'activated', if you will.

 * @author Maarten Vangeneugden

 */

import javax.swing.*; // FIXME: Maybe namespacing it to "javax.swing;" is a better idea.

import java.util.NoSuchElementException;

public class Main {

	private JPanel panel;

	/**

	 * Creates a button in the GUI for interaction.

	 * This function offers a convenient way to create a button, that can be

	 * directly interacted with by the user. After creation, the button itself

	 * is returned to the caller, if he wishes to do something else with it.

	 * @param text The text that will be displayed in the button.

	 * @param action The action that will be returned to the action listener.

	 * @return The button that was created.

	 */

	public JButton createButton(String text, String action) {

		JButton button = new JButton(text);

		button.setActionCommand(action);

		this.panel.add(button);

		return button;

	}

	/**

	 * Creates a label in the GUI for interaction.

	 * This function offers a convenient way to create a label, that can be

	 * directly interacted with by the user. After creation, the label itself

	 * is returned to the caller, if he wishes to do something else with it.

	 * @param text The text that will be displayed in the label.

	 * @return The label that was created.

	 */

	public JLabel createLabel(String text) {

		JLabel label = new JLabel(text);

		this.panel.add(label);

		return label;

	}

	/**

	 * Removes the given component from the GUI.

	 * This method allows its caller to remove a component from the GUI.

	 * @param component The component to be removed.

	 * @throws NoSuchElementException if the given component does not exist in

	 * the GUI.

	 * @throws NullPointerException if the given component is a null pointer.

	 */

	public void removeComponent(JComponent component) {

		int originalSize = this.panel.getComponentCount();

		this.panel.remove(component);

		int newSize = this.panel.getComponentCount();

		if (originalSize != newSize+1) {

			throw new NoSuchElementException("The given component does not exist in the GUI.");

		}

	}

	/**

	 * Main function.

	 * 

	 * This is the first function that is being called in the program.

	 */

	public static void main(String[] args) {

		// Creat©s2016eyournamewith a double buffer and flow layout.

		JPanel panel = new JPanel();

		JFrame frame = new JFrame("Hello world!");

		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

		JLabel lblHelloWorld = new JLabel("Hello world... :D");

		//frame.getContentPane().add(lblHelloWorld); // So you use a get() in order to set() data? #JavaWTF

		panel.add(lblHelloWorld);

		frame.setContentPane(panel);

		frame.pack();

		frame.setVisible(true);

	}

}