Logik verbessert

src/main/java/ChatGUI.java

@@ -136,7 +136,9 @@ public class ChatGUI implements ActionListener {
 		if (e.getSource() == inputTextField || e.getSource() == sendButton) {
 			String inputText = inputTextField.getText();
 			inputTextField.setText("");
+			if (!inputText.isEmpty()) {
 			addMessage(inputText);
+			}
 		}
 		if (e.getSource() == red) {
 			outputTextArea.setForeground(Color.RED);
@@ -161,7 +163,9 @@ public class ChatGUI implements ActionListener {
 			String message = inputTextField.getText();
 			inputTextField.setText("");
 			addMessage(message);
+			if(!message.isEmpty()) {
 			sendPopupMessage(message);
+			}
 		}
 
 	}