witam napisałem program który sumuje dwie podane liczby i prosiłbym o opinie na temat napisanego kodu
/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
package javaswingsuma;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JLabel;
import javax.swing.JTextField;
import java.awt.GridLayout;
import javax.swing.JOptionPane;
/**
*
* @author marcin
*/
public class KlasaSuma extends JFrame implements ActionListener{
private int wysokosc = 100;
private int szerokosc = 300;
private int pozycja_okna_x = 500;
private int pozycja_okna_y = 400;
private JPanel jPanel = new JPanel();
private JButton jButtonLicz = new JButton();
private JButton jButtonWyjscie = new JButton();
private JButton jButtonInfo = new JButton();
private JLabel jLabelA = new JLabel();
private JLabel jLabelB = new JLabel();
private JLabel jLabelC = new JLabel();
private JTextField textPoleA = new JTextField();
private JTextField textPoleB = new JTextField();
private JTextField textPoleC = new JTextField();
private GridLayout gridLayout = new GridLayout(3, 3);
public KlasaSuma() {
setTitle("suma");
setLocation(pozycja_okna_x, pozycja_okna_y);
setSize(szerokosc, wysokosc);
setVisible(true);
setDefaultCloseOperation(EXIT_ON_CLOSE);
add(jPanel);
jLabelA.setText("a=");
jLabelB.setText("b=");
jLabelC.setText("a+b=");
textPoleA.setText("0");
textPoleB.setText("0");
textPoleC.setText("0");
jButtonLicz.setText("licz");
jButtonLicz.addActionListener(this);
jButtonWyjscie.setText("wyjscie");
jButtonWyjscie.addActionListener(this);
jButtonInfo.setText("info");
jButtonInfo.addActionListener(this);
jPanel.setLayout(gridLayout);
jPanel.add(jLabelA);
jPanel.add(textPoleA);
jPanel.add(jButtonLicz);
jPanel.add(jLabelB);
jPanel.add(textPoleB);
jPanel.add(jButtonInfo);
jPanel.add(jLabelC);
jPanel.add(textPoleC);
jPanel.add(jButtonWyjscie);
}
@Override
public void actionPerformed(ActionEvent e) {
Object object = e.getSource();
if(object == jButtonLicz){
suma();
} else if(object == jButtonInfo){
JOptionPane.showMessageDialog(null, "program liczy sume dwoch podanych liczb calkowitych !", "info", JOptionPane.INFORMATION_MESSAGE);
} else if(object == jButtonWyjscie){
System.exit(0);
}
}
private void suma(){
int a = Integer.parseInt(textPoleA.getText());
int b = Integer.parseInt(textPoleB.getText());
textPoleC.setText(String.valueOf(a + b));
}
}
/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
package javaswingsuma;
import javax.swing.SwingUtilities;
/**
*
* @author marcin
*/
public class JavaSwingSuma {
/**
* @param args the command line arguments
*/
public static void main(String[] args) {
// TODO code application logic here
SwingUtilities.invokeLater(new Runnable() {
@Override
public void run() {
KlasaSuma klasaSuma = new KlasaSuma();
}
});
}
}[/code]