Aufgabe 1 Chat tool implementieren: zip Dateien

package de.hrw.dsalab.distsys.chat;

import java.awt.BorderLayout; import java.awt.Color; import java.awt.FlowLayout; import java.awt.event.ActionEvent; import java.awt.event.ActionListener;

import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JOptionPane; import javax.swing.JPanel; import javax.swing.JTextArea; import javax.swing.JTextField;

public class Chat extends JFrame {

private static final long serialVersionUID = 1L;
private InputListener inputListener;
private String nick;

public Chat() {
    JPanel mainPanel;

    setTitle("Chat Tool v0.1");
    setSize(800, 600);
    setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    setVisible(true);
    nick = retrieveNickName();
    mainPanel = setupChatView();
    getContentPane().add(mainPanel);
    getContentPane().getParent().invalidate();
    getContentPane().validate();
}

private JPanel setupChatView() {
    JPanel panel = new JPanel();
    JPanel southPanel = new JPanel();
    JTextArea textArea = new JTextArea();
    final JTextField textField = new JTextField();
    JButton sendButton = new JButton("Send");

    textField.setColumns(60);

    sendButton.addActionListener(new ActionListener() {

        @Override
        public void actionPerformed(ActionEvent e) {
            inputListener.inputReceived(textField.getText());
            textField.setText("");
        }

    });

    textArea.setBackground(Color.LIGHT_GRAY);
    textArea.setEditable(false);

    southPanel.setLayout(new FlowLayout());
    southPanel.add(textField);
    southPanel.add(sendButton);

    panel.setLayout(new BorderLayout());
    panel.add(textArea, BorderLayout.CENTER);
    panel.add(southPanel, BorderLayout.SOUTH);

    // this is just an example, please modify for your listeners accordingly...
    inputListener = new KeyboardListener(textArea, nick);

    return panel;
}

private String retrieveNickName() {
    return (String)JOptionPane.showInputDialog(this, "Enter your nickname please:", "Enter nickname", JOptionPane.QUESTION_MESSAGE);
}

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

}

package de.hrw.dsalab.distsys.chat;

import java.awt.BorderLayout; import java.awt.Color; import java.awt.FlowLayout; import java.awt.event.ActionEvent; import java.awt.event.ActionListener;

import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JOptionPane; import javax.swing.JPanel; import javax.swing.JTextArea; import javax.swing.JTextField;

public class Chat extends JFrame {

private static final long serialVersionUID = 1L;
private InputListener inputListener;
private String nick;

public Chat() {
    JPanel mainPanel;

    setTitle("Chat Tool v0.1");
    setSize(800, 600);
    setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    setVisible(true);
    nick = retrieveNickName();
    mainPanel = setupChatView();
    getContentPane().add(mainPanel);
    getContentPane().getParent().invalidate();
    getContentPane().validate();
}

private JPanel setupChatView() {
    JPanel panel = new JPanel();
    JPanel southPanel = new JPanel();
    JTextArea textArea = new JTextArea();
    final JTextField textField = new JTextField();
    JButton sendButton = new JButton("Send");

    textField.setColumns(60);

    sendButton.addActionListener(new ActionListener() {

        @Override
        public void actionPerformed(ActionEvent e) {
            inputListener.inputReceived(textField.getText());
            textField.setText("");
        }

    });

    textArea.setBackground(Color.LIGHT_GRAY);
    textArea.setEditable(false);

    southPanel.setLayout(new FlowLayout());
    southPanel.add(textField);
    southPanel.add(sendButton);

    panel.setLayout(new BorderLayout());
    panel.add(textArea, BorderLayout.CENTER);
    panel.add(southPanel, BorderLayout.SOUTH);

    // this is just an example, please modify for your listeners accordingly...
    inputListener = new KeyboardListener(textArea, nick);

    return panel;
}

private String retrieveNickName() {
    return (String)JOptionPane.showInputDialog(this, "Enter your nickname please:", "Enter nickname", JOptionPane.QUESTION_MESSAGE);
}

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

}

package de.hrw.dsalab.distsys.chat;

import java.awt.BorderLayout; import java.awt.Color; import java.awt.FlowLayout; import java.awt.event.ActionEvent; import java.awt.event.ActionListener;

import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JOptionPane; import javax.swing.JPanel; import javax.swing.JTextArea; import javax.swing.JTextField;

public class Chat extends JFrame {

private static final long serialVersionUID = 1L;
private InputListener inputListener;
private String nick;

public Chat() {
    JPanel mainPanel;

    setTitle("Chat Tool v0.1");
    setSize(800, 600);
    setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    setVisible(true);
    nick = retrieveNickName();
    mainPanel = setupChatView();
    getContentPane().add(mainPanel);
    getContentPane().getParent().invalidate();
    getContentPane().validate();
}

private JPanel setupChatView() {
    JPanel panel = new JPanel();
    JPanel southPanel = new JPanel();
    JTextArea textArea = new JTextArea();
    final JTextField textField = new JTextField();
    JButton sendButton = new JButton("Send");

    textField.setColumns(60);

    sendButton.addActionListener(new ActionListener() {

        @Override
        public void actionPerformed(ActionEvent e) {
            inputListener.inputReceived(textField.getText());
            textField.setText("");
        }

    });

    textArea.setBackground(Color.LIGHT_GRAY);
    textArea.setEditable(false);

    southPanel.setLayout(new FlowLayout());
    southPanel.add(textField);
    southPanel.add(sendButton);

    panel.setLayout(new BorderLayout());
    panel.add(textArea, BorderLayout.CENTER);
    panel.add(southPanel, BorderLayout.SOUTH);

    // this is just an example, please modify for your listeners accordingly...
    inputListener = new KeyboardListener(textArea, nick);

    return panel;
}

private String retrieveNickName() {
    return (String)JOptionPane.showInputDialog(this, "Enter your nickname please:", "Enter nickname", JOptionPane.QUESTION_MESSAGE);
}

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

}

package de.hrw.dsalab.distsys.chat;

public class Networklistener {

}

Aufgabe 2 Erweitern Sie das Ergebnis aus Aufgabe 1 so, dass ein Chat entsprechende Eingaben aus dem Eingabefeld entgegen nimmt und an mehrere Instanzen des Chat Tools übergeben kann, die dann im Ausgabefeld angezeigt werden.