バスの座席を予約するこのプログラムをやっています。これは学校のプロジェクト用です。私は手数料を計算する側です。例: 3 席を予約するので、予約したいボタンをクリックします。テキストボックスには、その 3 つの座席の合計コストが表示されます。私はこのアキュムレータ変数を、そのトランザクションによって押されたボタンの合計を保持することを期待して作成したので、簡単に価格を掛けることができました。
package busreservationproject;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.Insets;
import javax.swing.JFrame;
import javax.swing.JLabel;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import javax.swing.JTextField;
import javax.swing.JButton;
import javax.swing.JPanel;
public class ReservationSubClass extends JFrame {
private JLabel A1; private JLabel A2;
private JLabel B1; private JLabel B2;
private JLabel C1; private JLabel C2;
private JLabel D1; private JLabel D2;
private JLabel E1; private JLabel E2;
private JLabel F1; private JLabel F2;
private JLabel G1; private JLabel G2;
private JLabel H1; private JLabel H2;
private JLabel I1; private JLabel I2;
private JLabel J1; private JLabel J2;
private JTextField counter; private JTextField bill;
private JLabel counterLab; private JLabel bLabel;
private JButton r1button; private JButton r11button;
private JButton r2button; private JButton r12button;
private JButton r3button; private JButton r13button;
private JButton r4button; private JButton r14button;
private JButton r5button; private JButton r15button;
private JButton r6button; private JButton r16button;
private JButton r7button; private JButton r17button;
private JButton r8button; private JButton r18button;
private JButton r9button; private JButton r19button;
private JButton r10button; private JButton r20button;
private JPanel contentPane;
private JButton billButton;
public ReservationSubClass()
{
super("Bus Reservation");
String string = "";
contentPane = new JPanel();
contentPane.setLayout(new GridBagLayout());
GridBagConstraints cons = new GridBagConstraints();
add(contentPane);
cons.insets = new Insets (0,0,10,10);
A1 = new JLabel("A1");
A1.setToolTipText("click the button below to reserve this seat");
r1button = new JButton("reserve A1");
cons.gridx = 0;
cons.gridy = 1;
contentPane.add(A1,cons);
cons.gridx = 0;
cons.gridy = 2;
contentPane.add(r1button,cons);
B1 = new JLabel("B1");
B1.setToolTipText("click the button below to reserve this seat");
r2button = new JButton("reserve B1");
cons.gridx = 0;
cons.gridy = 3;
contentPane.add(B1,cons);
cons.gridx = 0;
cons.gridy = 4;
contentPane.add(r2button,cons);
C1 = new JLabel("C1");
C1.setToolTipText("click the button below to reserve this seat");
r3button = new JButton("reserve C1");
cons.gridx = 0;
cons.gridy = 5;
contentPane.add(C1,cons);
cons.gridx = 0;
cons.gridy = 6;
contentPane.add(r3button,cons);
D1 = new JLabel("D1");
D1.setToolTipText("click the button below to reserve this seat");
r4button = new JButton("reserve D1");
cons.gridx = 0;
cons.gridy = 7;
contentPane.add(D1,cons);
cons.gridx = 0;
cons.gridy = 8;
contentPane.add(r4button,cons);
E1 = new JLabel("E1");
E1.setToolTipText("click the button below to reserve this seat");
r5button = new JButton("reserve E1");
cons.gridx = 0;
cons.gridy = 9;
contentPane.add(E1,cons);
cons.gridx = 0;
cons.gridy = 10;
contentPane.add(r5button,cons);
F1 = new JLabel("F1");
F1.setToolTipText("click the button below to reserve this seat");
r6button = new JButton("reserve F1");
cons.gridx = 0;
cons.gridy = 11;
contentPane.add(F1,cons);
cons.gridx = 0;
cons.gridy = 12;
contentPane.add(r6button,cons);
G1 = new JLabel("G1");
G1.setToolTipText("click the button below to reserve this seat");
r7button = new JButton("reserve G1");
cons.gridx = 0;
cons.gridy = 13;
contentPane.add(G1,cons);
cons.gridx = 0;
cons.gridy = 14;
contentPane.add(r7button,cons);
H1 = new JLabel("H1");
H1.setToolTipText("click the button below to reserve this seat");
r8button = new JButton("reserve H1");
cons.gridx = 0;
cons.gridy = 15;
contentPane.add(H1,cons);
cons.gridx = 0;
cons.gridy = 16;
contentPane.add(r8button,cons);
I1 = new JLabel("I1");
I1.setToolTipText("click the button below to reserve this seat");
r9button = new JButton("reserve I1");
cons.gridx = 0;
cons.gridy = 17;
contentPane.add(I1,cons);
cons.gridx = 0;
cons.gridy = 18;
contentPane.add(r9button,cons);
J1 = new JLabel("J1");
J1.setToolTipText("click the button below to reserve this seat");
r10button = new JButton("reserve J1");
cons.gridx = 0;
cons.gridy = 19;
contentPane.add(J1,cons);
cons.gridx = 0;
cons.gridy = 20;
contentPane.add(r10button,cons);
//COL 2
A2 = new JLabel("A2");
A2.setToolTipText("click the button below to reserve this seat");
r11button = new JButton("reserve A2");
cons.gridx = 100;
cons.gridy = 1;
contentPane.add(A2,cons);
cons.gridx = 100;
cons.gridy = 2;
contentPane.add(r11button,cons);
B2 = new JLabel("B2");
B2.setToolTipText("click the button below to reserve this seat");
r12button = new JButton("reserve B2");
cons.gridx = 100;
cons.gridy = 3;
contentPane.add(B2,cons);
cons.gridx = 100;
cons.gridy = 4;
contentPane.add(r12button,cons);
C2 = new JLabel("C2");
C2.setToolTipText("click the button below to reserve this seat");
r13button = new JButton("reserve C2");
cons.gridx = 100;
cons.gridy = 5;
contentPane.add(C2,cons);
cons.gridx = 100;
cons.gridy = 6;
contentPane.add(r13button,cons);
D2 = new JLabel("D2");
D2.setToolTipText("click the button below to reserve this seat");
r14button = new JButton("reserve D2");
cons.gridx = 100;
cons.gridy = 7;
contentPane.add(D2,cons);
cons.gridx = 100;
cons.gridy = 8;
contentPane.add(r14button,cons);
E2 = new JLabel("E2");
E2.setToolTipText("click the button below to reserve this seat");
r15button = new JButton("reserve E2");
cons.gridx = 100;
cons.gridy = 9;
contentPane.add(E2,cons);
cons.gridx = 100;
cons.gridy = 10;
contentPane.add(r15button,cons);
F2 = new JLabel("F2");
F2.setToolTipText("click the button below to reserve this seat");
r16button = new JButton("reserve F2");
cons.gridx = 100;
cons.gridy = 11;
contentPane.add(F2,cons);
cons.gridx = 100;
cons.gridy = 12;
contentPane.add(r16button,cons);
G2 = new JLabel("G2");
G2.setToolTipText("click the button below to reserve this seat");
r17button = new JButton("reserve G2");
cons.gridx = 100;
cons.gridy = 13;
contentPane.add(G2,cons);
cons.gridx = 100;
cons.gridy = 14;
contentPane.add(r17button,cons);
H2 = new JLabel("H2");
H2.setToolTipText("click the button below to reserve this seat");
r18button = new JButton("reserve H2");
cons.gridx = 100;
cons.gridy = 15;
contentPane.add(H2,cons);
cons.gridx = 100;
cons.gridy = 16;
contentPane.add(r18button,cons);
I2 = new JLabel("I2");
I2.setToolTipText("click the button below to reserve this seat");
r19button = new JButton("reserve I2");
cons.gridx = 100;
cons.gridy = 17;
contentPane.add(I2,cons);
cons.gridx = 100;
cons.gridy = 18;
contentPane.add(r19button,cons);
J2 = new JLabel("J2");
J2.setToolTipText("click the button below to reserve this seat");
r20button = new JButton("reserve J2");
cons.gridx = 100;
cons.gridy = 19;
contentPane.add(J2,cons);
cons.gridx = 100;
cons.gridy = 20;
contentPane.add(r20button,cons);
//COUNTER
counterLab = new JLabel("counter");
counter = new JTextField(20);
counter.setEditable(false);
cons.gridx = 300;
cons.gridy = 5;
contentPane.add(counterLab,cons);
cons.gridx = 300;
cons.gridy = 6;
contentPane.add(counter,cons);
bLabel = new JLabel("bill");
bLabel.setToolTipText("enter the bill below");
bill = new JTextField(20);
billButton = new JButton("calculate");
cons.gridx = 300;
cons.gridy = 7;
contentPane.add(bLabel,cons);
cons.gridx = 300;
cons.gridy = 8;
contentPane.add(bill,cons);
cons.gridx = 300;
cons.gridy = 9;
contentPane.add(billButton,cons);
progHandler handler = new progHandler();
r1button.addActionListener(handler); r11button.addActionListener(handler);
r2button.addActionListener(handler); r12button.addActionListener(handler);
r3button.addActionListener(handler); r13button.addActionListener(handler);
r4button.addActionListener(handler); r14button.addActionListener(handler);
r5button.addActionListener(handler); r15button.addActionListener(handler);
r6button.addActionListener(handler); r16button.addActionListener(handler);
r7button.addActionListener(handler); r17button.addActionListener(handler);
r8button.addActionListener(handler); r18button.addActionListener(handler);
r9button.addActionListener(handler); r19button.addActionListener(handler);
r10button.addActionListener(handler); r20button.addActionListener(handler);
bill.addActionListener(handler);
billButton.addActionListener(handler);
//counter.addActionListener(handler);
}
private class progHandler implements ActionListener{
@Override
public void actionPerformed(ActionEvent e){
int price = 450;
int suc_price = 450;
int total;
int accumulator=1;
if(e.getSource()==r1button)
{
total = price * accumulator;
counter.setText("" +total);
r1button.setEnabled(false);
accumulator++;
}
else if(e.getSource()==r2button)
{
total = price * accumulator;
counter.setText("" +accumulator);
r2button.setEnabled(false);
accumulator++;
}
else if(e.getSource()==r3button)
{
counter.setText("" +price);
r3button.setEnabled(false);
accumulator++;
}
else if(e.getSource()==r4button)
{
counter.setText("" +price);
r4button.setEnabled(false);
}
else if(e.getSource()==r5button)
{
counter.setText("" +price);
r5button.setEnabled(false);
}
else if(e.getSource()==r6button)
{
counter.setText("" +price);
r6button.setEnabled(false);
}
else if(e.getSource()==r7button)
{
counter.setText("" +price);
r7button.setEnabled(false);
}
else if(e.getSource()==r8button)
{
counter.setText("" +price);
r8button.setEnabled(false);
}
else if(e.getSource()==r9button)
{
counter.setText("" +price);
r9button.setEnabled(false);
}
else if(e.getSource()==r10button)
{
counter.setText("" +price);
r10button.setEnabled(false);
}
else if(e.getSource()==r11button)
{
counter.setText("" +price);
r11button.setEnabled(false);
}
else if(e.getSource()==r12button)
{
counter.setText("" +price);
r12button.setEnabled(false);
}
else if(e.getSource()==r13button)
{
counter.setText("" +price);
r13button.setEnabled(false);
}
else if(e.getSource()==r14button)
{
counter.setText("" +price);
r14button.setEnabled(false);
}
else if(e.getSource()==r15button)
{
counter.setText("" +price);
r15button.setEnabled(false);
}
else if(e.getSource()==r16button)
{
counter.setText("" +price);
r16button.setEnabled(false);
}
else if(e.getSource()==r17button)
{
counter.setText("" +price);
r17button.setEnabled(false);
}
else if(e.getSource()==r18button)
{
counter.setText("" +price);
r18button.setEnabled(false);
}
else if(e.getSource()==r19button)
{
counter.setText("" +price);
r19button.setEnabled(false);
}
else if(e.getSource()==r20button)
{
counter.setText("" +price);
r20button.setEnabled(false);
}
}
}
}