joel/notenrechner
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update with event listener

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This commit is contained in:
Joel Baldauf
2020-12-10 13:25:19 +01:00
parent ca6ce67ea8
commit 7ad2bea191
1 changed files with 47 additions and 26 deletions
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Punkte-in-Noten/src/frame.java
+47 -26
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@@ -4,6 +4,7 @@ import java.awt.EventQueue;
import javax.swing.JFrame; import javax.swing.JFrame;
import javax.swing.JPanel; import javax.swing.JPanel;
import javax.swing.border.EmptyBorder; import javax.swing.border.EmptyBorder;
import javax.swing.event.ChangeEvent;
import javax.swing.JButton; import javax.swing.JButton;
import java.awt.event.ActionListener; import java.awt.event.ActionListener;
import java.awt.event.ActionEvent; import java.awt.event.ActionEvent;
@@ -18,11 +19,13 @@ import javax.swing.JSpinner;
import javax.swing.JTable; import javax.swing.JTable;
import javax.swing.JScrollPane; import javax.swing.JScrollPane;
import javax.swing.table.DefaultTableModel; import javax.swing.table.DefaultTableModel;
import java.awt.Font;
import javax.swing.event.ChangeListener;
public class frame extends JFrame { public class frame extends JFrame {
private JPanel contentPane; private JPanel contentPane;
private JTable table; private JTable table;
private JScrollPane scrollPane;
/** /**
* Launch the application. * 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. * Create the frame.
*/ */
@@ -51,12 +75,12 @@ public class frame extends JFrame {
setContentPane(contentPane); setContentPane(contentPane);
contentPane.setLayout(null); contentPane.setLayout(null);
JLabel lblTotalPercentage = new JLabel("Wievielen Prozenten sollen die Punkte entsprechen?"); JLabel lblTotalPercentage = new JLabel("Prozente");
lblTotalPercentage.setBounds(15, 84, 397, 20); lblTotalPercentage.setBounds(160, 48, 73, 20);
contentPane.add(lblTotalPercentage); contentPane.add(lblTotalPercentage);
JLabel lblMaxPoints = new JLabel("Gesamtpunktzahl eingeben"); JLabel lblMaxPoints = new JLabel("Gesamtpunktzahl");
lblMaxPoints.setBounds(15, 16, 228, 20); lblMaxPoints.setBounds(14, 48, 131, 20);
contentPane.add(lblMaxPoints); contentPane.add(lblMaxPoints);
@@ -64,18 +88,25 @@ public class frame extends JFrame {
SpinnerNumberModel modelMaxPoints = new SpinnerNumberModel(0, 0, null, 1); SpinnerNumberModel modelMaxPoints = new SpinnerNumberModel(0, 0, null, 1);
JSpinner spMaxPoints = new JSpinner(modelMaxPoints); JSpinner spMaxPoints = new JSpinner(modelMaxPoints);
spMaxPoints.setBounds(15, 42, 58, 26); spMaxPoints.setBounds(14, 74, 58, 26);
contentPane.add(spMaxPoints); contentPane.add(spMaxPoints);
// 100 als Startwert, von 0 bis 100, Schrittweite 1 // 100 als Startwert, von 0 bis 100, Schrittweite 1
SpinnerNumberModel modelTotalPercentage = new SpinnerNumberModel(100, 0, 100, 10); SpinnerNumberModel modelTotalPercentage = new SpinnerNumberModel(100, 0, 100, 10);
JSpinner spTotalPercentage = new JSpinner(modelTotalPercentage); JSpinner spTotalPercentage = new JSpinner(modelTotalPercentage);
spTotalPercentage.setBounds(15, 120, 58, 26); spTotalPercentage.setBounds(160, 74, 58, 26);
contentPane.add(spTotalPercentage); 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.setBounds(399, 16, 379, 281);
scrollPane.setBorder(null); scrollPane.setBorder(null);
contentPane.add(scrollPane); contentPane.add(scrollPane);
@@ -85,27 +116,17 @@ public class frame extends JFrame {
Button btnCalc = new Button("Berechnen"); Button btnCalc = new Button("Berechnen");
btnCalc.addActionListener(new ActionListener() { btnCalc.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) { public void actionPerformed(ActionEvent e) {
String[][] result = PunkteInNoten.calculateMarks((int)spMaxPoints.getValue(), (int)spTotalPercentage.getValue()); updateTable(spMaxPoints, spTotalPercentage);
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);
} }
}); });
btnCalc.setBounds(20, 167, 91, 27); btnCalc.setBounds(272, 73, 91, 27);
contentPane.add(btnCalc); 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);
} }
} }