update with event listener

Punkte-in-Noten/src/frame.java

@@ -4,6 +4,7 @@ import java.awt.EventQueue;
 import javax.swing.JFrame;
 import javax.swing.JPanel;
 import javax.swing.border.EmptyBorder;
+import javax.swing.event.ChangeEvent;
 import javax.swing.JButton;
 import java.awt.event.ActionListener;
 import java.awt.event.ActionEvent;
@@ -18,11 +19,13 @@ import javax.swing.JSpinner;
 import javax.swing.JTable;
 import javax.swing.JScrollPane;
 import javax.swing.table.DefaultTableModel;
-
+import java.awt.Font;
+import javax.swing.event.ChangeListener;
 public class frame extends JFrame {
 
 	private JPanel contentPane;
 	private JTable table;
+	private JScrollPane scrollPane;
 
 	/**
 	 * Launch the application.
@@ -40,6 +43,27 @@ public class frame extends JFrame {
 		});
 	}
 
+	
+	public void updateTable(JSpinner spMaxPoints, JSpinner spTotalPercentage) {
+		String[][] result =  PunkteInNoten.calculateMarks((int)spMaxPoints.getValue(), (int)spTotalPercentage.getValue());
+		String[] columnNames = {"Punkte",
+                "Prozente",
+                "IHK-Note",
+                "ganze Note"
+                };
+		
+		table = new JTable(result, columnNames) {
+			 @Override
+			    public boolean isCellEditable(int row, int column) {
+			        return false;
+			    }
+		};
+		table.setRowSelectionAllowed(false);
+		
+		scrollPane.setViewportView(table);
+		
+	}
+	
 	/**
 	 * Create the frame.
 	 */
@@ -51,12 +75,12 @@ public class frame extends JFrame {
 		setContentPane(contentPane);
 		contentPane.setLayout(null);
 		
-		JLabel lblTotalPercentage = new JLabel("Wievielen Prozenten sollen die Punkte entsprechen?");
-		lblTotalPercentage.setBounds(15, 84, 397, 20);
+		JLabel lblTotalPercentage = new JLabel("Prozente");
+		lblTotalPercentage.setBounds(160, 48, 73, 20);
 		contentPane.add(lblTotalPercentage);
 		
-		JLabel lblMaxPoints = new JLabel("Gesamtpunktzahl eingeben");
-		lblMaxPoints.setBounds(15, 16, 228, 20);
+		JLabel lblMaxPoints = new JLabel("Gesamtpunktzahl");
+		lblMaxPoints.setBounds(14, 48, 131, 20);
 		contentPane.add(lblMaxPoints);
 		
 		
@@ -64,18 +88,25 @@ public class frame extends JFrame {
 		SpinnerNumberModel modelMaxPoints = new SpinnerNumberModel(0, 0, null, 1);
 		
 		JSpinner spMaxPoints = new JSpinner(modelMaxPoints);
-		spMaxPoints.setBounds(15, 42, 58, 26);
+		spMaxPoints.setBounds(14, 74, 58, 26);
 		contentPane.add(spMaxPoints);
 		
 		
 		// 100 als Startwert, von 0 bis 100, Schrittweite 1
 		SpinnerNumberModel modelTotalPercentage = new SpinnerNumberModel(100, 0, 100, 10);  
 		JSpinner spTotalPercentage = new JSpinner(modelTotalPercentage);
-		spTotalPercentage.setBounds(15, 120, 58, 26);
+		spTotalPercentage.setBounds(160, 74, 58, 26);
 		contentPane.add(spTotalPercentage);
 		
 	
-		JScrollPane scrollPane = new JScrollPane();
+		spMaxPoints.addChangeListener(new ChangeListener() {
+			 @Override
+	            public void stateChanged(ChangeEvent e) {
+				 updateTable(spMaxPoints, spTotalPercentage);
+		}
+	});
+		
+		scrollPane = new JScrollPane();
 		scrollPane.setBounds(399, 16, 379, 281);
 		scrollPane.setBorder(null);
 		contentPane.add(scrollPane);
@@ -85,27 +116,17 @@ public class frame extends JFrame {
 		Button btnCalc = new Button("Berechnen");
 		btnCalc.addActionListener(new ActionListener() {
 			public void actionPerformed(ActionEvent e) {
-				String[][] result =  PunkteInNoten.calculateMarks((int)spMaxPoints.getValue(), (int)spTotalPercentage.getValue());
-				String[] columnNames = {"Punkte",
-		                "Prozente",
-		                "IHK-Note",
-		                "ganze Note"
-		                };
-				
-				table = new JTable(result, columnNames) {
-					 @Override
-					    public boolean isCellEditable(int row, int column) {
-					        return false;
-					    }
-				};
-				table.setRowSelectionAllowed(false);
-				
-				scrollPane.setViewportView(table);
-				
+				updateTable(spMaxPoints, spTotalPercentage);
 			}
 		});
-		btnCalc.setBounds(20, 167, 91, 27);
+		btnCalc.setBounds(272, 73, 91, 27);
 		contentPane.add(btnCalc);	
 		
+		JLabel lblNewLabel = new JLabel("Test");
+		lblNewLabel.setFont(new Font("Tahoma", Font.BOLD, 18));
+		lblNewLabel.setBounds(15, 12, 69, 20);
+		contentPane.add(lblNewLabel);
+		
 	}
+	
 }