Code d'une calculatrice en java

Réponse

+5

salma barkia 12 déc. 2008 à 23:50

programmation d'une calculatrice en java

Ajouter un commentaire

solida- 10 janv. 2009 à 18:30

voilà un exemple d'affichage

*********************
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

public class calculette implements ActionListener
{

JTextArea affichage;

public calculette()
{

JFrame all = new JFrame("Calculatrice" );

JPanel back = new JPanel();
JPanel clavier = new JPanel();
JPanel operation = new JPanel();
JPanel clavscien= new JPanel();
JPanel egal=new JPanel();

egal.setLayout(new BorderLayout());
back.setLayout(new BorderLayout());
operation.setLayout(new GridLayout(4,1));
clavscien.setLayout(new GridLayout(2,1));
clavier.setLayout(new GridLayout(4,3));

JButton t1 = new JButton("1" );
t1.addActionListener(this);
JButton t2 = new JButton("2" );
t2.addActionListener(this);
JButton t3 = new JButton("3" );
t3.addActionListener(this);
JButton t4 = new JButton("4" );
t4.addActionListener(this);
JButton t5 = new JButton("5" );
t5.addActionListener(this);
JButton t6 = new JButton("6" );
t6.addActionListener(this);
JButton t7 = new JButton("7" );
t7.addActionListener(this);
JButton t8 = new JButton("8" );
t8.addActionListener(this);
JButton t9 = new JButton("9" );
t9.addActionListener(this);
JButton t10 = new JButton("0" );
t10.addActionListener(this);
JButton t11 = new JButton("," );
t11.addActionListener(this);
JButton t12 = new JButton("-" );
t12.addActionListener(this);
JButton plus = new JButton("+" );
plus.addActionListener(this);
JButton moins = new JButton("-" );
moins.addActionListener(this);
JButton fois = new JButton("*" );
fois.addActionListener(this);
JButton divise = new JButton("/" );
divise.addActionListener(this);
JButton carre = new JButton("²" );
carre.addActionListener(this);
JButton cube = new JButton("³" );
cube.addActionListener(this);
JButton tegal = new JButton("=" );
tegal.addActionListener(this);

clavier.add(t1); clavier.add(t2); clavier.add(t3);
clavier.add(t4); clavier.add(t5); clavier.add(t6);
clavier.add(t7); clavier.add(t8); clavier.add(t9);
clavier.add(t10); clavier.add(t11); clavier.add(t12);

clavscien.add(carre);
clavscien.add(cube);
operation.add(plus);
operation.add(moins);
operation.add(divise);
operation.add(fois);
affichage= new JTextArea();
affichage.setLayout(new BorderLayout());
egal.add(tegal);
back.add(affichage,BorderLayout.NORTH);
back.add(operation,BorderLayout.WEST);
back.add(clavier,BorderLayout.CENTER);
back.add(clavscien,BorderLayout.EAST);
back.add(egal,BorderLayout.SOUTH);
all.setContentPane(back);
all.setVisible(true);
all.pack();
}

public void actionPerformed(ActionEvent evt)
{
String a = evt.getActionCommand();
affichage.setText(a);
}

}

*************************

Ali - 9 mai 2011 à 13:24

mé ca ne marche pas

Réponse

+3

chello 15 avril 2008 à 00:14

je veux vraiment voir le clavier de touches numériques et une petite zone de texte qui s'affichent

Ajouter un commentaire

Réponse

+2

nada 7 févr. 2008 à 11:49

je veux avoir le code en java de construction d'une calculatrice

Ajouter un commentaire

Réponse

+1

Kingpopo 1571Messages postés 1 février 2002Date d'inscription 26 sept. 2002 à 14:46

v'là:

http://javanilla.free.fr/scripts/divers/

enfin si ça répond à la question :)

[J'erre donc je suis !]

Ajouter un commentaire

Réponse

+1

amira 9 févr. 2008 à 14:10

s'il vous plaiez aidez moi à completer ce programme d'une calculatrice en java .je une reponse rapide et merci
import.javx.swing.JoptionPane
public class calculatrice
{public static void main(string[]args)
string ch1,ch2,ch3;
double n1,n2;
ch1=JoptionPane.show.InputDialog("donnez la valeur de l'operateur n°1 : a");
ch2=JoptionPane.show.InputDialog("donnez la valeur de l'operande b");
ch1=JoptionPane.show.InputDialog("donnez la valeur de l'operateur n°2 : c");

n1=Double.ParseDouble(ch1);
n2=Double.ParseDouble(ch2);

..................................
.............

Ajouter un commentaire

ibou52- 14 févr. 2008 à 15:31

verifie ce programme.

public class calc{
public static void main(String[] args){
int x=Integer.parseInt(args[0]);
char oper=args[1].charAt(0);
int y=Integer.parseInt(args[2]);
if(oper=='+'){
int z=x+y;
System.out.println("La somme de "+x+" et "+y+" est:" +z );
}
else
if(oper=='-'){
int z=x-y;
System.out.println("La soustraction de "+x+" et "+y+" est:" +z );
}
else
if(oper=='x'){
int z=x*y;
System.out.println("La multiplication de "+x+" et "+y+" est:" +z );
}
else
if(oper=='/'){
int z=x/y;
System.out.println("La division de "+x+" et "+y+" est:" +z );
}
}
}

tigresse - 19 mars 2008 à 15:35

a quoi sa sert de code en java sur une calculatrice ?

Souna - 23 juin 2010 à 15:30

A mon avis ces instructiosn ne devraient pas etre dans le "main"!!!

Réponse

+0

THEJavaMan 7 mai 2012 à 21:27

// Calculatrice complète

package Java;

import java.awt.Color;
import java.awt.Event;
import java.awt.Font;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyEvent;
import java.io.IOException;
import javax.swing.JLabel;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.KeyStroke;
import javax.swing.SwingConstants;

public class Frame extends JFrame implements ActionListener {

public static void main(String[] args) throws IOException {
// TODO Auto-generated method stub
Frame frame = new Frame();
}
private JPanel pan = new JPanel();
private JMenuBar menubar = new JMenuBar();
private JMenu menu1 = new JMenu("file");
private JMenuItem item1 = new JMenuItem("exit");
private Font calcul = new Font("joan", Font.PLAIN, 40);
private Font error = new Font("transformers movie", Font.PLAIN, 40);
private JLabel lab1 = new JLabel("");
private JLabel lab2 = new JLabel("");
private JLabel lab3 = new JLabel("");
private JLabel lab4 = new JLabel("");
private JLabel lab5 = new JLabel("");
private JLabel lab6 = new JLabel("");
private JButton b0 = new JButton ("0");
private JButton b1 = new JButton ("1");
private JButton b2 = new JButton ("2");
private JButton b3 = new JButton ("3");
private JButton b4 = new JButton ("4");
private JButton b5 = new JButton ("5");
private JButton b6 = new JButton ("6");
private JButton b7 = new JButton ("7");
private JButton b8 = new JButton ("8");
private JButton b9 = new JButton ("9");
private JButton b10 = new JButton ("+");
private JButton b11 = new JButton ("=");
private JButton b12 = new JButton ("-");
private JButton b13 = new JButton ("*");
private JButton b14 = new JButton ("C");
private JButton b15 = new JButton (":");
private JButton b16 = new JButton("²");
private JButton b17 = new JButton("sup");
private double result;

public Frame() throws IOException{

this.setTitle("Calculatrice");
this.setSize(600, 650);
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
this.setLocationRelativeTo(null);
this.setResizable(false);

pan.setLayout(null);
menubar.setBounds(0, 0, 600, 20);
lab1.setBounds(0, 140, 260, 40);
lab2.setBounds(285, 140, 100, 40);
lab3.setBounds(325, 140, 260, 40);
lab4.setBounds(0, 140, 600, 40);
lab5.setBounds(0, 100, 600, 40);
lab6.setBounds(0, 140, 600, 40);
lab1.setFont(calcul);
lab2.setFont(calcul);
lab3.setFont(calcul);
lab4.setFont(calcul);
lab5.setFont(error);
lab5.setForeground(Color.RED);
lab6.setFont(error);
lab6.setForeground(Color.RED);
lab1.setHorizontalAlignment(SwingConstants.RIGHT);
lab4.setHorizontalAlignment(SwingConstants.CENTER);
lab5.setHorizontalAlignment(SwingConstants.CENTER);
lab6.setHorizontalAlignment(SwingConstants.CENTER);

b0.setBounds(10, 294, 45, 45);
b0.addActionListener(this);
b1.setBounds(60, 294, 45, 45);
b1.addActionListener(this);
b2.setBounds(110, 294, 45, 45);
b2.addActionListener(this);
b3.setBounds(160, 294, 45, 45);
b3.addActionListener(this);
b4.setBounds(210, 294, 45, 45);
b4.addActionListener(this);
b5.setBounds(260, 294, 45, 45);
b5.addActionListener(this);
b6.setBounds(310, 294, 45, 45);
b6.addActionListener(this);
b7.setBounds(360, 294, 45, 45);
b7.addActionListener(this);
b8.setBounds(410, 294, 45, 45);
b8.addActionListener(this);
b9.setBounds(460, 294, 45, 45);
b9.addActionListener(this);
b10.setBounds(110, 394, 45, 45);
b10.addActionListener(this);
b11.setBounds(310, 394, 45, 45);
b11.addActionListener(this);
b12.setBounds(160, 394, 45, 45);
b12.addActionListener(this);
b13.setBounds(210, 394, 45, 45);
b13.addActionListener(this);
b14.setBounds(550, 20, 45, 45);
b14.addActionListener(this);
b15.setBounds(260, 394, 45, 45);
b15.addActionListener(this);
b16.setBounds(510, 294, 45, 45);
b16.addActionListener(this);
b17.setBounds(495, 20, 55, 45);
b17.addActionListener(this);

menubar.add(menu1);
menu1.add(item1);
item1.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_E, Event.CTRL_MASK));
item1.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent arg0) {
System.exit(0);
}
});

pan.add(b0);
pan.add(b1);
pan.add(b2);
pan.add(b3);
pan.add(b4);
pan.add(b5);
pan.add(b6);
pan.add(b7);
pan.add(b8);
pan.add(b9);
pan.add(b10);
pan.add(b11);
pan.add(b12);
pan.add(b13);
pan.add(b14);
pan.add(b15);
pan.add(b16);
pan.add(b17);
pan.add(lab1);
pan.add(lab2);
pan.add(lab3);
pan.add(lab4);
pan.add(lab5);
pan.add(lab6);
pan.add(menubar);

this.setContentPane(pan);
this.setVisible(true);
}

public void actionPerformed(ActionEvent e) {
// TODO Auto-generated method stub
if (e.getSource() == b0) // 0
{
lab5.setText("");
lab6.setText("");
if (lab1.getText().contains("="))
{
lab1.setText(lab1.getText().substring(2));
}
lab4.setText("");
if (lab2.getText().isEmpty() == true)
{
lab1.setText(lab1.getText() + "0");
}
if (lab2.getText().isEmpty() == false)
{
lab3.setText(lab3.getText() + "0");
}
}
if (e.getSource() == b1) // 1
{
lab5.setText("");
lab6.setText("");
if (lab1.getText().contains("="))
{
lab1.setText(lab1.getText().substring(2));
}
lab4.setText("");
if (lab2.getText().isEmpty() == true)
{
lab1.setText(lab1.getText() + "1");
}
if (lab2.getText().isEmpty() == false)
{
lab3.setText(lab3.getText() + "1");
}
}
if (e.getSource() == b2) // 2
{
lab5.setText("");
lab6.setText("");
if (lab1.getText().contains("="))
{
lab1.setText(lab1.getText().substring(2));
}
lab4.setText("");
if (lab2.getText().isEmpty() == true)
{
lab1.setText(lab1.getText() + "2");
}
if (lab2.getText().isEmpty() == false)
{
lab3.setText(lab3.getText() + "2");
}
}
if (e.getSource() == b3) // 3
{
lab5.setText("");
lab6.setText("");
if (lab1.getText().contains("="))
{
lab1.setText(lab1.getText().substring(2));
}
lab4.setText("");
if (lab2.getText().isEmpty() == true)
{
lab1.setText(lab1.getText() + "3");
}
if (lab2.getText().isEmpty() == false)
{
lab3.setText(lab3.getText() + "3");
}
}
if (e.getSource() == b4) // 4
{
lab5.setText("");
lab6.setText("");
if (lab1.getText().contains("="))
{
lab1.setText(lab1.getText().substring(2));
}
lab4.setText("");
if (lab2.getText().isEmpty() == true)
{
lab1.setText(lab1.getText() + "4");
}
if (lab2.getText().isEmpty() == false)
{
lab3.setText(lab3.getText() + "4");
}
}
if (e.getSource() == b5) // 5
{
lab5.setText("");
lab6.setText("");
if (lab1.getText().contains("="))
{
lab1.setText(lab1.getText().substring(2));
}
lab4.setText("");
if (lab2.getText().isEmpty() == true)
{
lab1.setText(lab1.getText() + "5");
}
if (lab2.getText().isEmpty() == false)
{
lab3.setText(lab3.getText() + "5");
}
}
if (e.getSource() == b6) // 6
{
lab5.setText("");
lab6.setText("");
if (lab1.getText().contains("="))
{
lab1.setText(lab1.getText().substring(2));
}
lab4.setText("");
if (lab2.getText().isEmpty() == true)
{
lab1.setText(lab1.getText() + "6");
}
if (lab2.getText().isEmpty() == false)
{
lab3.setText(lab3.getText() + "6");
}
}
if (e.getSource() == b7) // 7
{
lab5.setText("");
lab6.setText("");
if (lab1.getText().contains("="))
{
lab1.setText(lab1.getText().substring(2));
}
lab4.setText("");
if (lab2.getText().isEmpty() == true)
{
lab1.setText(lab1.getText() + "7");
}
if (lab2.getText().isEmpty() == false)
{
lab3.setText(lab3.getText() + "7");
}
}
if (e.getSource() == b8) // 8
{
lab5.setText("");
lab6.setText("");
if (lab1.getText().contains("="))
{
lab1.setText(lab1.getText().substring(2));
}
lab4.setText("");
if (lab2.getText().isEmpty() == true)
{
lab1.setText(lab1.getText() + "8");
}
if (lab2.getText().isEmpty() == false)
{
lab3.setText(lab3.getText() + "8");
}
}
if (e.getSource() == b9) // 9
{
lab5.setText("");
lab6.setText("");
if (lab1.getText().contains("="))
{
lab1.setText(lab1.getText().substring(2));
}
lab4.setText("");
if (lab2.getText().isEmpty() == true)
{
lab1.setText(lab1.getText() + "9");
}
if (lab2.getText().isEmpty() == false)
{
lab3.setText(lab3.getText() + "9");
}
}
if (e.getSource() == b10) // +
{
lab5.setText("");
lab6.setText("");
if (lab1.getText().isEmpty() == false)
{
lab2.setText("+");
}
if (lab4.getText().isEmpty() == false)
{
lab1.setText(lab4.getText());
lab2.setText("+");
lab4.setText("");
}
if (lab1.getText().contains("="))
{
lab1.setText(lab1.getText().substring(2));
}
}
if (e.getSource() == b11) // =
{
if (lab2.getText() == "+")
{
try
{
result = (double)Integer.parseInt(lab1.getText()) + (double)Integer.parseInt(lab3.getText());
lab4.setText("= " + result);
}
catch (Exception e1)
{
lab5.setText("syntax error:");
lab6.setText(e1.getMessage());
}
}
if (lab2.getText() == "-")
{
try
{
result = Integer.parseInt(lab1.getText()) - Integer.parseInt(lab3.getText());
lab4.setText("= " + result);
}
catch (Exception e2)
{
lab5.setText("syntax error:");
lab6.setText(e2.getMessage());
}
}
if (lab2.getText() == "*")
{
try
{
result = Integer.parseInt(lab1.getText()) * Integer.parseInt(lab3.getText());
lab4.setText("= " + result);
}
catch (Exception e3)
{
lab5.setText("syntax error:");
lab6.setText(e3.getMessage());
}
}
if (lab2.getText() == ":")
{
try
{
result = (double)Integer.parseInt(lab1.getText()) / (double)Integer.parseInt(lab3.getText());
lab4.setText("= " + result);
}
catch (Exception e4)
{
lab5.setText("syntax error:");
lab6.setText(e4.getMessage());
}
}
if (lab1.getText().endsWith("²"))
{
try
{
lab1.setText(lab1.getText().replace("²", ""));
result = (int)Math.pow(Integer.parseInt(lab1.getText()), 2);
lab4.setText(result + "");
}
catch (Exception e5)
{
lab5.setText("syntax error:");
lab6.setText(e5.getMessage());
}
}
lab1.setText("");
lab2.setText("");
lab3.setText("");
}
if (e.getSource() == b12) // -
{
lab5.setText("");
lab6.setText("");
if (lab1.getText().isEmpty() == false)
{
lab2.setText("-");
}
if (lab4.getText().isEmpty() == false)
{
lab1.setText(lab4.getText());
lab2.setText("-");
lab4.setText("");
}
if (lab1.getText().contains("="))
{
lab1.setText(lab1.getText().substring(2));
}
}
if (e.getSource() == b13) // *
{
lab5.setText("");
lab6.setText("");
if (lab1.getText().isEmpty() == false)
{
lab2.setText("*");
}
if (lab4.getText().isEmpty() == false)
{
lab1.setText(lab4.getText());
lab2.setText("*");
lab4.setText("");
}
if (lab1.getText().contains("="))
{
lab1.setText(lab1.getText().substring(2));
}
}
if (e.getSource() == b14) // erase
{
lab1.setText("");
lab2.setText("");
lab3.setText("");
lab4.setText("");
lab5.setText("");
lab6.setText("");
}
if (e.getSource() == b15) // :
{
lab5.setText("");
lab6.setText("");
if (lab1.getText().isEmpty() == false)
{
lab2.setText(":");
}
if (lab4.getText().isEmpty() == false)
{
lab1.setText(lab4.getText());
lab2.setText(":");
lab4.setText("");
}
if (lab1.getText().contains("="))
{
lab1.setText(lab1.getText().substring(2));
}
}
if (e.getSource() == b16)
{
lab1.setText(lab1.getText() + "²");
}
if (e.getSource() == b17)
{
if (lab1.getText().isEmpty() == false && lab2.getText().isEmpty() == true)
{
lab1.setText(lab1.getText().substring(0, lab1.getText().length() - 1));
}
if (lab2.getText().isEmpty() == false && lab3.getText().isEmpty() == true)
{
lab2.setText(lab2.getText().substring(0, lab2.getText().length() - 1));
}
if (lab2.getText().isEmpty() == false && lab3.getText().isEmpty() == false)
{
lab3.setText(lab3.getText().substring(0, lab3.getText().length() - 1));
}
if (lab1.getText().isEmpty() == true)
{

}
}
}

}

Ajouter un commentaire

Réponse

-1

boudo20 18 févr. 2009 à 17:31

code source d'une appli java s'il vous plait? .
...merci

Ajouter un commentaire

Code d'une calculatrice en java

Code d'une calculatrice en java »

Passage au tout numérique : quel coût pour les particuliers ?