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Jonathan / Assignment2B

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1 parent bf46995 commit 37049ed43eaa71e7bf70b457c2c019925d0140aa Jonathan Ström authored on 31 Aug 2017

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Ignore Space Show notes View src/MainWindow.java
import java.awt.GridBagConstraints; import java.awt.GridBagLayout; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import javax.swing.DefaultListModel; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.JList; import javax.swing.JOptionPane; import javax.swing.JPanel; import javax.swing.JScrollPane; import javax.swing.JTextField; public class MainWindow extends JFrame { private static final long serialVersionUID = 1L; private IList<String> elementList; private JTextField txtInputField; private JLabel lblShowText; private JList<String> lstElementsList; private JButton btnAddElement, btnRemoveElement, btnClearAllElements, btnFindElement, btnAppendList; private DefaultListModel<String> model; public MainWindow() { this.setTitle("QueueWindow"); this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); this.setSize(300, 208); this.setLayout(new GridBagLayout()); GridBagConstraints c = new GridBagConstraints(); /* * Create the button listener. * Either use one or several different inner class listeners. * Also, either write the code inside the different listeners, * or write the code in different methods. Not sure what to use for this assignment. * Example: btnAddElement.addActionListener(new AddElementListener); / ButtonListener buttonListener = new ButtonListener(); // Left panel JPanel leftPanel = new JPanel(new GridBagLayout()); // lblShowText lblShowText = new JLabel(); lblShowText.setText(" "); // To save a place in the grid for the label when it updates. c.gridx = 0; c.gridy = 0; c.fill = GridBagConstraints.HORIZONTAL; c.anchor = GridBagConstraints.CENTER; leftPanel.add(lblShowText, c); // txtInputField txtInputField = new JTextField(10); c.gridy++; leftPanel.add(txtInputField, c); // btnAddElement btnAddElement = new JButton("Add"); c.gridy++; leftPanel.add(btnAddElement, c); btnAddElement.addActionListener(buttonListener); // btnRemoveElement btnRemoveElement = new JButton("Remove"); c.gridy++; leftPanel.add(btnRemoveElement, c); btnRemoveElement.addActionListener(buttonListener); // btnClearAllElements btnClearAllElements = new JButton("Clear"); c.gridy++; leftPanel.add(btnClearAllElements, c); btnClearAllElements.addActionListener(buttonListener); // btnFindElement btnFindElement = new JButton("Find"); c.gridy++; leftPanel.add(btnFindElement, c); btnFindElement.addActionListener(buttonListener); / btnAppendList / btnAppendList = new JButton("Append List"); c.gridy++; leftPanel.add(btnAppendList, c); btnAppendList.addActionListener(buttonListener); // leftPanel c.gridx = 0; c.gridy = 0; this.add(leftPanel, c); // Right panel // lstElementsList lstElementsList = new JList<String>(); lstElementsList.setFixedCellWidth(150); JScrollPane scrollPane = new JScrollPane(); scrollPane.setViewportView(lstElementsList); c.gridx = 1; c.gridy = 0; c.fill = GridBagConstraints.BOTH; this.add(scrollPane, c); elementList = new List<String>(); this.setVisible(true); // Show some help to run the commands. JOptionPane.showMessageDialog(this, "addElement(String): Use the text field. Use comma if you want to use (pos, elem).\n" + "removeElement(int): Use the text field to remove the specific element.\n" + "clearAllElements(): Use this to remove all elements.\n" + "findElement(String): Use this to search for something in your list, it will go there.\n" + "appendList(String[]): Use comma to separate all items to add.", "Help", JOptionPane.PLAIN_MESSAGE); } /* * This class will listen for button actions. / private class ButtonListener implements ActionListener { @Override public void actionPerformed(ActionEvent e) { switch (e.getActionCommand()) { case "Add": addElement(); break; case "Remove": removeElement(); break; case "Clear": clearAllElements(); break; case "Find": findElement(); break; case "Append List": appendList(); break; } } } /* * Refresh the list on the screen. / private void updateList() { model = new DefaultListModel<String>(); for (String s : this.elementList.getAllElementsAsStrings()) { model.addElement(s.toString()); } lstElementsList.setModel(model); } /* * Add an element to the list. / private void addElement() { if (!txtInputField.getText().equals("")) { if (txtInputField.getText().contains(",")) { String[] contents = txtInputField.getText().split(","); elementList.addAt(Integer.parseInt(contents[0]), contents[1]); } else { elementList.addAt(0, txtInputField.getText()); } updateList(); } } /* * Remove an element from the list. / private void removeElement() { elementList.removeAt(elementList.find(lstElementsList.getSelectedValue())); updateList(); } /* * Remove all elements from the list. / private void clearAllElements() { elementList.clear(); updateList(); } /* * Find the first element that matches in the list. / private void findElement() { lstElementsList.setSelectedValue(txtInputField.getText(), true);; } /* * Append a list of items separated by commas to the current list. / private void appendList() { String[] elements = txtInputField.getText().split(","); IList<String> elementList = new List<String>(); for (String element : elements) { elementList.addAt(-1, element); } this.elementList.append(elementList); updateList(); } public static void main(String[] args) { new MainWindow(); } } import java.awt.GridBagConstraints; import java.awt.GridBagLayout; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import javax.swing.DefaultListModel; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.JList; import javax.swing.JOptionPane; import javax.swing.JPanel; import javax.swing.JScrollPane; import javax.swing.JTextField; public class MainWindow extends JFrame { private static final long serialVersionUID = 1L; private IList<String> elementList; private JTextField txtInputField; private JLabel lblShowText; private JList<String> lstElementsList; private JButton btnAddElement, btnRemoveElement, btnClearAllElements, btnFindElement, btnAppendList; private DefaultListModel<String> model; public MainWindow() { this.setTitle("QueueWindow"); this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); this.setSize(300, 208); this.setLayout(new GridBagLayout()); GridBagConstraints c = new GridBagConstraints(); / * Create the button listener. * Either use one or several different inner class listeners. * Also, either write the code inside the different listeners, * or write the code in different methods. Not sure what to use for this assignment. * Example: btnAddElement.addActionListener(new AddElementListener); / ButtonListener buttonListener = new ButtonListener(); // Left panel JPanel leftPanel = new JPanel(new GridBagLayout()); // lblShowText lblShowText = new JLabel(); lblShowText.setText(" "); // To save a place in the grid for the label when it updates. c.gridx = 0; c.gridy = 0; c.fill = GridBagConstraints.HORIZONTAL; c.anchor = GridBagConstraints.CENTER; leftPanel.add(lblShowText, c); // txtInputField txtInputField = new JTextField(10); c.gridy++; leftPanel.add(txtInputField, c); // btnAddElement btnAddElement = new JButton("Add"); c.gridy++; leftPanel.add(btnAddElement, c); btnAddElement.addActionListener(buttonListener); // btnRemoveElement btnRemoveElement = new JButton("Remove"); c.gridy++; leftPanel.add(btnRemoveElement, c); btnRemoveElement.addActionListener(buttonListener); // btnClearAllElements btnClearAllElements = new JButton("Clear"); c.gridy++; leftPanel.add(btnClearAllElements, c); btnClearAllElements.addActionListener(buttonListener); // btnFindElement btnFindElement = new JButton("Find"); c.gridy++; leftPanel.add(btnFindElement, c); btnFindElement.addActionListener(buttonListener); / btnAppendList */ btnAppendList = new JButton("Append List"); c.gridy++; leftPanel.add(btnAppendList, c); btnAppendList.addActionListener(buttonListener); // leftPanel c.gridx = 0; c.gridy = 0; this.add(leftPanel, c); // Right panel // lstElementsList lstElementsList = new JList<String>(); lstElementsList.setFixedCellWidth(150); JScrollPane scrollPane = new JScrollPane(); scrollPane.setViewportView(lstElementsList); c.gridx = 1; c.gridy = 0; c.fill = GridBagConstraints.BOTH; this.add(scrollPane, c); elementList = new List<String>(); this.setVisible(true); // Show some help to run the commands. JOptionPane.showMessageDialog(this, "addElement(String): Use the text field. Use comma if you want to use (pos, elem).\n" + "removeElement(int): Use the text field to remove the specific element.\n" + "clearAllElements(): Use this to remove all elements.\n" + "findElement(String): Use this to search for something in your list, it will go there.\n" + "appendList(String[]): Use comma to separate all items to add.", "Help", JOptionPane.PLAIN_MESSAGE); } private class ButtonListener implements ActionListener { @Override public void actionPerformed(ActionEvent e) { switch (e.getActionCommand()) { case "Add": addElement(); break; case "Remove": removeElement(); break; case "Clear": clearAllElements(); break; case "Find": findElement(); break; case "Append List": appendList(); break; } } } private void updateList() { model = new DefaultListModel<String>(); for (String s : this.elementList.getAllElementsAsStrings()) { model.addElement(s.toString()); } lstElementsList.setModel(model); } private void addElement() { if (!txtInputField.getText().equals("")) { if (txtInputField.getText().contains(",")) { String[] contents = txtInputField.getText().split(","); elementList.addAt(Integer.parseInt(contents[0]), contents[1]); } else { elementList.addAt(0, txtInputField.getText()); } updateList(); } } private void removeElement() { elementList.removeAt(elementList.find(lstElementsList.getSelectedValue())); updateList(); } private void clearAllElements() { elementList.clear(); updateList(); } private void findElement() { lstElementsList.setSelectedValue(txtInputField.getText(), true);; } private void appendList() { String[] elements = txtInputField.getText().split(","); IList<String> elementList = new List<String>(); for (String element : elements) { elementList.addAt(-1, element); } this.elementList.append(elementList); updateList(); } public static void main(String[] args) { new MainWindow(); } }

Ignore Space Show notes View

src/MainWindow.java

import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.DefaultListModel;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JList;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTextField;

public class MainWindow extends JFrame {

private static final long serialVersionUID = 1L;
	private IList<String> elementList;
	private JTextField txtInputField;
	private JLabel lblShowText;
	private JList<String> lstElementsList;
	private JButton btnAddElement, btnRemoveElement, btnClearAllElements, btnFindElement, btnAppendList;
	private DefaultListModel<String> model;

public MainWindow() {
		this.setTitle("QueueWindow");
		this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		this.setSize(300, 208);
		this.setLayout(new GridBagLayout());
		GridBagConstraints c = new GridBagConstraints();

/*
		 * Create the button listener.
		 * Either use one or several different inner class listeners.
		 * Also, either write the code inside the different listeners,
		 *   or write the code in different methods. Not sure what to use for this assignment.
		 * Example: btnAddElement.addActionListener(new AddElementListener);
		 */
		ButtonListener buttonListener = new ButtonListener();

// Left panel
		JPanel leftPanel = new JPanel(new GridBagLayout());

// lblShowText
		lblShowText = new JLabel();
		lblShowText.setText(" "); // To save a place in the grid for the label when it updates.
		c.gridx = 0;
		c.gridy = 0;
		c.fill = GridBagConstraints.HORIZONTAL;
		c.anchor = GridBagConstraints.CENTER;
		leftPanel.add(lblShowText, c);

// txtInputField
		txtInputField = new JTextField(10);
		c.gridy++;
		leftPanel.add(txtInputField, c);

// btnAddElement
		btnAddElement = new JButton("Add");
		c.gridy++;
		leftPanel.add(btnAddElement, c);
		btnAddElement.addActionListener(buttonListener);

// btnRemoveElement
		btnRemoveElement = new JButton("Remove");
		c.gridy++;
		leftPanel.add(btnRemoveElement, c);
		btnRemoveElement.addActionListener(buttonListener);

// btnClearAllElements
		btnClearAllElements = new JButton("Clear");
		c.gridy++;
		leftPanel.add(btnClearAllElements, c);
		btnClearAllElements.addActionListener(buttonListener);

// btnFindElement
		btnFindElement = new JButton("Find");
		c.gridy++;
		leftPanel.add(btnFindElement, c);
		btnFindElement.addActionListener(buttonListener);

/* btnAppendList */
		btnAppendList = new JButton("Append List");
		c.gridy++;
		leftPanel.add(btnAppendList, c);
		btnAppendList.addActionListener(buttonListener);

// leftPanel
		c.gridx = 0;
		c.gridy = 0;
		this.add(leftPanel, c);

// Right panel
		// lstElementsList
		lstElementsList = new JList<String>();
		lstElementsList.setFixedCellWidth(150);
		JScrollPane scrollPane = new JScrollPane();
		scrollPane.setViewportView(lstElementsList);
		c.gridx = 1;
		c.gridy = 0;
		c.fill = GridBagConstraints.BOTH;
		this.add(scrollPane, c);

elementList = new List<String>();

this.setVisible(true);

// Show some help to run the commands.
		JOptionPane.showMessageDialog(this,
				"addElement(String): Use the text field. Use comma if you want to use (pos, elem).\n"
				+ "removeElement(int): Use the text field to remove the specific element.\n"
				+ "clearAllElements(): Use this to remove all elements.\n"
				+ "findElement(String): Use this to search for something in your list, it will go there.\n"
				+ "appendList(String[]): Use comma to separate all items to add.",
				"Help",
				JOptionPane.PLAIN_MESSAGE);
	}

/**
	 * This class will listen for button actions.
	 */
	private class ButtonListener implements ActionListener {
		@Override
		public void actionPerformed(ActionEvent e) {
			switch (e.getActionCommand()) {
			case "Add":
				addElement();
				break;
			case "Remove":
				removeElement();
				break;
			case "Clear":
				clearAllElements();
				break;
			case "Find":
				findElement();
				break;
			case "Append List":
				appendList();
				break;
			}
		}
	}

/**
	 * Refresh the list on the screen.
	 */
	private void updateList() {
		model = new DefaultListModel<String>();
		for (String s : this.elementList.getAllElementsAsStrings()) {
			model.addElement(s.toString());
		}
		lstElementsList.setModel(model);
	}

/**
	 * Add an element to the list.
	 */
	private void addElement() {
		if (!txtInputField.getText().equals("")) {
			if (txtInputField.getText().contains(",")) {
				String[] contents = txtInputField.getText().split(",");
				elementList.addAt(Integer.parseInt(contents[0]), contents[1]);
			} else {
				elementList.addAt(0, txtInputField.getText());
			}
			updateList();
		}
	}

/**
	 * Remove an element from the list.
	 */
	private void removeElement() {
		elementList.removeAt(elementList.find(lstElementsList.getSelectedValue()));
		updateList();
	}

/**
	 * Remove all elements from the list.
	 */
	private void clearAllElements() {
		elementList.clear();
		updateList();
	}

/**
	 * Find the first element that matches in the list.
	 */
	private void findElement() {
		lstElementsList.setSelectedValue(txtInputField.getText(), true);;
	}

/**
	 * Append a list of items separated by commas to the current list.
	 */
	private void appendList() {
		String[] elements = txtInputField.getText().split(",");
		IList<String> elementList = new List<String>();
		for (String element : elements) {
			elementList.addAt(-1, element);
		}
		this.elementList.append(elementList);
		updateList();
	}

public static void main(String[] args) {
		new MainWindow();
	}
}