1 files changed, 33 insertions, 0 deletions
diff --git a/Master/Kryptografie/krypto1/IntVerifier.java b/Master/Kryptografie/krypto1/IntVerifier.java
new file mode 100644
index 0000000..db9baeb
--- /dev/null
+++ b/Master/Kryptografie/krypto1/IntVerifier.java
@@ -0,0 +1,33 @@
+import javax.swing.InputVerifier;
+import javax.swing.JComponent;
+import javax.swing.JTextField;
+import java.awt.Toolkit;
+
+/**
+ * @author Andreas Spirka, Sven Eisenhauer
+ * InputVerifier zur Überprüfung 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);
+	}
+}