Java-GUI-Test

<eval id="4d0e67f560eba"> JButton myButton = new JButton("Beenden"); JTextField myTextField = new JTextField(" "); JPanel myPanel1 = new JPanel(); JPanel myPanel2 = new JPanel();</eval>

myFrame = new JFrame("Information"); myFrame.setSize(200, 100); myFrame.setLocationRelativeTo(null);

myPanel1.add(myTextField); myPanel2.add(myButton);

myFrame.getContentPane().setLayout(new BorderLayout()); myFrame.getContentPane().add(myPanel1, BorderLayout.NORTH); myFrame.getContentPane().add(myPanel2, BorderLayout.SOUTH); myFrame.setVisible(true);

myButton.addActionListener(this);

public void actionPerformed(ActionEvent Ereignis) {

String zk = new String(); 
double x;
if (Ereignis.getSource() == myButton) {
 try {
  x = Double.parseDouble(myTextField.getText());
 }
 catch (NumberFormatException Ereignis) { 
  x = -1;
 }
 myTextField.setText(zk.valueOf((int)x));
}
else 
 myTextField.setText("Fehler?");
myFrame.dispose();

}