import java.awt.*;
import java.awt.event.*;
import java.io.IOException;
import javax.swing.*;
public class Console extends JFrame{
Dimension screen;
private JLabel output;
private JTextField input;
private String in;
private Object lock;
private InputKeyListener list;
public static void main(String[] args) throws IOException, InterruptedException{
Console console = new Console();
for( int i = 0; i < 5; i++ ){
console.println( i + ": Geben sie bitte etwas ein..." );
String in = console.readLine();
console.println( "Sie haben geschrieben: " + in);
}
}
public Console(int width, int height, String title){
//JFrame erstellen
super(title);
screen = Toolkit.getDefaultToolkit().getScreenSize();
setSize(width, height);
setLocation( (screen.width - getSize().width)/2, //JFrame zentrieren
(screen.height - getSize().height)/2 );
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
//Container erstellen und Layout zuweisen
Container c = getContentPane();
c.setLayout(new BorderLayout());
//JLabel erstellen
output = new JLabel("<html></html>");
JScrollPane scrollableOutput = new JScrollPane(output);
c.add(scrollableOutput,BorderLayout.CENTER);
output.setVerticalAlignment(JLabel.TOP);
//JTextField erstellen
input = new JTextField();
c.add(input,BorderLayout.SOUTH);
input.setEnabled(false);
//Object erstellen für Mutlithreading
lock = new Object(); // <<<<<<<<<<<<<<<<<<<< die wieder hinein
list = new InputKeyListener( lock );
input.addKeyListener(list);
setVisible(true);
}
public Console(int width, int height){
this(width,height,"Java Console");
}
public Console(){
this(800,600);
}
public String readLine(){
//lock = new Object(); // <<<<<<<<<<<<<<<<<<<< die raus
//list = new InputKeyListener( lock );
//input.addKeyListener(list);
//reader.start();
read( lock ); // <<<<<<<<<<<<<<<<<<<<<<<<<<<< hier aufrufen
println(in = input.getText());
System.out.println(input.getText());
input.setText("");
return in;
}
public void read( Object lock ){
input.setEnabled(true);
System.out.println("1");
synchronized( lock ){
try{
lock.wait();
}catch (InterruptedException ex){
System.out.println("wait interrupted");
}
}
input.setEnabled(false);
}
public void print(String Text){
if(Text.equals("exit")){
System.exit(0);
}
output.setText(output.getText().substring(0,output.getText().length()-7)+ Text + "</html>");
}
public void println(String Text){
if(Text.equals("exit")){
System.exit(0);
}
output.setText(output.getText().substring(0,output.getText().length()-7)+ Text + "
</html>");
}
public void println(){
output.setText(output.getText().substring(0,output.getText().length()-7) + "
</html>");
}
private class InputKeyListener extends KeyAdapter{
private Object lock;
public InputKeyListener (Object lock){
this.lock = lock;
}
public void keyPressed(KeyEvent ke){
if(ke.getKeyCode()==KeyEvent.VK_ENTER){
in = input.getText();
synchronized(lock){
lock.notify();
}
}else if(ke.getKeyCode()==KeyEvent.VK_ESCAPE){
System.exit(1);
}
}
}
}
