Code d'une calculatrice en java [Fermé]

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Bonjour tt le monde
Quelqu'un pourrat il m'aider a trouver le code java d'une calculatrice.
Merci d'avance
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11 réponses

Messages postés
97
Date d'inscription
vendredi 14 novembre 2008
Statut
Membre
Dernière intervention
1 juin 2010
15
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);
}

}

*************************
17
Merci

Quelques mots de remerciements seront grandement appréciés. Ajouter un commentaire

CCM 65492 internautes nous ont dit merci ce mois-ci

et l'execution ?
C'est quoi le rôle de chaque code ?
package Exercice5TpSwing;

public class run {

public static void main(String[] args) {
calculette fenetre = new calculette();

}

}
le meme p
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);

..................................
.............
Messages postés
81
Date d'inscription
mardi 4 décembre 2007
Statut
Membre
Dernière intervention
24 août 2008
60
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 );
}
}
}
>
Messages postés
81
Date d'inscription
mardi 4 décembre 2007
Statut
Membre
Dernière intervention
24 août 2008

a quoi sa sert de code en java sur une calculatrice ?
A mon avis ces instructiosn ne devraient pas etre dans le "main"!!!
// 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)
{

}
}
}

}
salut!
c'est ma petite calculatrice java ;)
http://programmingeeks.blogspot.com/2012/06/mini-projet-calculatrice-java.html

v'là:

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

enfin si ça répond à la question :)

[J'erre donc je suis !]
je veux avoir le code en java de construction d'une calculatrice
je veux vraiment voir le clavier de touches numériques et une petite zone de texte qui s'affichent

programmation d'une calculatrice en java
votre code est tres lisible il se compile sans probleme, merci Solida
ceci peut t'aider:

http://techprogeek.blogspot.com/2012/06/mini-projet-calculatrice-java.html

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