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import javax.swing.InputVerifier;
import javax.swing.JComponent;
import javax.swing.JTextField;
import java.awt.Toolkit;
/**
* @author Andreas Spirka, Sven Eisenhauer
* InputVerifier zur �berpr�fung auf Integer-Werte
*/
public class IntVerifier extends InputVerifier {
/* (non-Javadoc)
* @see javax.swing.InputVerifier#verify(javax.swing.JComponent)
*/
public boolean verify(JComponent arg0) {
boolean retVal=false;
JTextField tf = (JTextField) arg0;
String regexp = "[0-9]+";
retVal=tf.getText().matches(regexp);
if(!retVal)
{
Toolkit.getDefaultToolkit().beep();
}
return retVal;
}
/* (non-Javadoc)
* @see javax.swing.InputVerifier#shouldYieldFocus(javax.swing.JComponent)
*/
public boolean shouldYieldFocus(JComponent input)
{
return verify(input);
}
}
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