Calculadora

public class Operaciones {


static double resultado;
public Operaciones(){
resultado = 0;
}

public static double seno(double x){
resultado = Math.sin(x);
return resultado;
}

public static double coseno(double x){
resultado = Math.cos(x);
return resultado;
}

public static double tangente(double x){
resultado = Math.tan(x);
return resultado;
}

public static double logaritmo(double x){
resultado = Math.log(x);
return resultado;
}

public static double raiz(double x){
if(x>=0){
resultado = Math.sqrt(x);
}else{
System.out.println("Solo valores postivos");
resultado = 0;
}
return resultado;

}

public static double suma(double x, double y){

resultado = x+y;

return resultado;
}

public static double resta(double x, double y){

resultado = x-y;

return resultado;
}
public static double multiplicacion(double x, double y){

resultado = x*y;

return resultado;
}

public static double division(double x, double y){

resultado = x/y;

return resultado;
}

public static void main(String args[]){
double y;
//Operaciones p = new Operaciones();
y = seno(3.141516);
System.out.println("El seno "+y);
}

}

Botones

/** Initializes the applet MisOperaciones */
public void init() {
try {
java.awt.EventQueue.invokeAndWait(new Runnable() {
public void run() {
initComponents();
}
});
} catch (Exception ex) {
ex.printStackTrace();
}
}

/** This method is called from within the init() method to
* initialize the form.
* WARNING: Do NOT modify this code. The content of this method is
* always regenerated by the Form Editor.
*/
@SuppressWarnings("unchecked")
//
private void initComponents() {

jPanel1 = new javax.swing.JPanel();
jTextField1 = new javax.swing.JTextField();
jLabel1 = new javax.swing.JLabel();
jButton1 = new javax.swing.JButton();
jButton2 = new javax.swing.JButton();
jButton3 = new javax.swing.JButton();
jButton4 = new javax.swing.JButton();
jButton5 = new javax.swing.JButton();
jButton6 = new javax.swing.JButton();
jButton7 = new javax.swing.JButton();
jButton8 = new javax.swing.JButton();
jButton9 = new javax.swing.JButton();
jButton10 = new javax.swing.JButton();
jButton11 = new javax.swing.JButton();
jButton12 = new javax.swing.JButton();
jButton13 = new javax.swing.JButton();
jButton14 = new javax.swing.JButton();
jButton15 = new javax.swing.JButton();
jButton16 = new javax.swing.JButton();
jLabel2 = new javax.swing.JLabel();
jButton17 = new javax.swing.JButton();
jButton18 = new javax.swing.JButton();
jButton19 = new javax.swing.JButton();
jButton20 = new javax.swing.JButton();
jTextField2 = new javax.swing.JTextField();

jTextField1.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jTextField1ActionPerformed(evt);
}
});

jLabel1.setText("Variable");

jButton1.setText("seno");
jButton1.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton1ActionPerformed(evt);
}
});

jButton2.setText("coseno");
jButton2.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton2ActionPerformed(evt);
}
});

jButton3.setText("tangente");
jButton3.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton3ActionPerformed(evt);
}
});

jButton4.setText("Raiz");
jButton4.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton4ActionPerformed(evt);
}
});

jButton5.setText("1");
jButton5.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton5ActionPerformed(evt);
}
});

jButton6.setText("2");
jButton6.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton6ActionPerformed(evt);
}
});

jButton7.setText("3");
jButton7.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton7ActionPerformed(evt);
}
});

jButton8.setText("4");
jButton8.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton8ActionPerformed(evt);
}
});

jButton9.setText("5");
jButton9.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton9ActionPerformed(evt);
}
});

jButton10.setText("6");
jButton10.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton10ActionPerformed(evt);
}
});

jButton11.setText("7");
jButton11.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton11ActionPerformed(evt);
}
});

jButton12.setText("8");
jButton12.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton12ActionPerformed(evt);
}
});

jButton13.setText("9");
jButton13.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton13ActionPerformed(evt);
}
});

jButton14.setText("+");
jButton14.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton14ActionPerformed(evt);
}
});

jButton15.setText("0");
jButton15.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton15ActionPerformed(evt);
}
});

jButton16.setText(".");
jButton16.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton16ActionPerformed(evt);
}
});

jLabel2.setText("Resultados");

jButton17.setText("logaritmo");
jButton17.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton17ActionPerformed(evt);
}
});

jButton18.setText("-");
jButton18.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton18ActionPerformed(evt);
}
});

jButton19.setText("*");
jButton19.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton19ActionPerformed(evt);
}
});

jButton20.setText("/");
jButton20.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton20ActionPerformed(evt);
}
});

javax.swing.GroupLayout jPanel1Layout = new javax.swing.GroupLayout(jPanel1);
jPanel1.setLayout(jPanel1Layout);
jPanel1Layout.setHorizontalGroup(
jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel1Layout.createSequentialGroup()
.addContainerGap()
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel1Layout.createSequentialGroup()
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING, false)
.addComponent(jButton4, javax.swing.GroupLayout.Alignment.LEADING, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addComponent(jButton1, javax.swing.GroupLayout.Alignment.LEADING, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addComponent(jButton2, javax.swing.GroupLayout.Alignment.LEADING, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addComponent(jButton3, javax.swing.GroupLayout.Alignment.LEADING, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
.addGroup(jPanel1Layout.createSequentialGroup()
.addComponent(jLabel1)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addComponent(jTextField1, javax.swing.GroupLayout.PREFERRED_SIZE, 49, javax.swing.GroupLayout.PREFERRED_SIZE)))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel1Layout.createSequentialGroup()
.addComponent(jButton8)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(jButton9)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(jButton10)
.addGap(18, 18, 18)
.addComponent(jButton18))
.addGroup(jPanel1Layout.createSequentialGroup()
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING)
.addComponent(jButton14)
.addComponent(jButton11))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel1Layout.createSequentialGroup()
.addComponent(jButton12)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(jButton13)
.addGap(18, 18, 18)
.addComponent(jButton19))
.addGroup(jPanel1Layout.createSequentialGroup()
.addComponent(jButton15)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addComponent(jButton16)
.addGap(18, 18, 18)
.addComponent(jButton20))))
.addGroup(jPanel1Layout.createSequentialGroup()
.addComponent(jButton5)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(jButton6)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(jButton7)
.addGap(18, 18, 18)
.addComponent(jButton17))
.addComponent(jTextField2, javax.swing.GroupLayout.PREFERRED_SIZE, 48, javax.swing.GroupLayout.PREFERRED_SIZE))
.addContainerGap(127, Short.MAX_VALUE))
.addGroup(jPanel1Layout.createSequentialGroup()
.addComponent(jLabel2, javax.swing.GroupLayout.DEFAULT_SIZE, 181, Short.MAX_VALUE)
.addGap(273, 273, 273))))
);
jPanel1Layout.setVerticalGroup(
jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel1Layout.createSequentialGroup()
.addContainerGap()
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jLabel1)
.addComponent(jTextField1, javax.swing.GroupLayout.PREFERRED_SIZE, 20, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(jTextField2, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGap(26, 26, 26)
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jButton1)
.addComponent(jButton5)
.addComponent(jButton6)
.addComponent(jButton7)
.addComponent(jButton17))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jButton2)
.addComponent(jButton8)
.addComponent(jButton9)
.addComponent(jButton10)
.addComponent(jButton18))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jButton3)
.addComponent(jButton11)
.addComponent(jButton12)
.addComponent(jButton13)
.addComponent(jButton19))
.addGap(18, 18, 18)
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jButton4)
.addComponent(jButton14)
.addComponent(jButton15)
.addComponent(jButton16)
.addComponent(jButton20))
.addGap(18, 18, 18)
.addComponent(jLabel2, javax.swing.GroupLayout.PREFERRED_SIZE, 42, javax.swing.GroupLayout.PREFERRED_SIZE)
.addContainerGap(51, Short.MAX_VALUE))
);

javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jPanel1, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jPanel1, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
);
}//
private void jButton5ActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here
aux += 1;
jTextField1.setText(aux);
}

private void jButton6ActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
aux += 2;
jTextField1.setText(aux);
}

private void jButton7ActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
aux += 3;
jTextField1.setText(aux);
}
private void jButton8ActionPerformed(java.awt.event.ActionEvent evt) {
aux += 4;
jTextField1.setText(aux); // TODO add your handling code here:
}

private void jButton9ActionPerformed(java.awt.event.ActionEvent evt) {
aux += 5;
jTextField1.setText(aux); // TODO add your handling code here:
}

private void jButton10ActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
aux += 6;
jTextField1.setText(aux);
}

private void jButton11ActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
aux += 7;
jTextField1.setText(aux);
}

private void jButton12ActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
aux += 8;
jTextField1.setText(aux);
}

private void jButton13ActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
aux += 9;
jTextField1.setText(aux);
}

private void jButton15ActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
aux += 0;
jTextField1.setText(aux);
}
private void jButton2ActionPerformed(java.awt.event.ActionEvent evt) {
String aux1 = jTextField1.getText();
double r = Double.parseDouble(aux1);
r = Operaciones.coseno(r);
jTextArea1.setText("El coseno es :\n "+r);
aux = "";
jTextField1.setText(aux);
}
private void jButton3ActionPerformed(java.awt.event.ActionEvent evt) {
String aux1 = jTextField1.getText();
double r = Double.parseDouble(aux1);
r = Operaciones.tangente(r);
jTextArea1.setText("La tangente es :\n "+r);
aux = "";
jTextField1.setText(aux);
}
private void jButton4ActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
String aux1 = jTextField1.getText();
double r = Double.parseDouble(aux1);
r = Operaciones.raiz(r);
jTextArea1.setText("La raiz es :\n "+r);
aux = "";
jTextField1.setText(aux);
}
private void jButton5ActionPerformed(java.awt.event.ActionEvent evt) {
String aux1 = jTextField1.getText();
double r = Double.parseDouble(aux1);
r = Operaciones.logaritmo(r);
jTextArea1.setText("El logaritmo es :\n "+r);
aux = "";
jTextField1.setText(aux);
}
private void jButton16ActionPerformed(java.awt.event.ActionEvent evt) {
String aux1 = jTextField1.getText();
x = Double.parseDouble(aux1);
aux2 = "+";
aux="";
jTextField1.setText("");
}
private void jButton17ActionPerformed(java.awt.event.ActionEvent evt) {
String aux1 = jTextField1.getText();
x = Double.parseDouble(aux1);
aux2 = "-";
aux="";
jTextField1.setText("");
}
private void jButton18ActionPerformed(java.awt.event.ActionEvent evt) {
String aux1 = jTextField1.getText();
x = Double.parseDouble(aux1);
aux2 = "^";
aux="";
jTextField1.setText("");
}
private void jButton19ActionPerformed(java.awt.event.ActionEvent evt) {
String aux1 = jTextField1.getText();
x = Double.parseDouble(aux1);
aux2 = "*";
aux="";
jTextField1.setText("");
}
private void jButton20ActionPerformed(java.awt.event.ActionEvent evt) {
String aux1 = jTextField1.getText();
x = Double.parseDouble(aux1);
aux2 = "/";
aux="";
jTextField1.setText("");
}
private void jButton21ActionPerformed(java.awt.event.ActionEvent evt) {
if(aux2 == "+"){
String aux1 = jTextField1.getText();
double r = Double.parseDouble(aux1);
jTextArea1.setText("La suma es: \n" +Operaciones.suma(x, r));
}
if(aux2 == "-"){
String aux1 = jTextField1.getText();
double r = Double.parseDouble(aux1);
jTextArea1.setText("La resta es:\n" +Operaciones.resta(x,r));
}

if(aux2 == "^"){
String aux1 = jTextField1.getText();
double r = Double.parseDouble(aux1);
jTextArea1.setText("La potencia es:\n" +Operaciones.exponente(x, r));
}
if(aux2 == "*"){
String aux1 = jTextField1.getText();
double r = Double.parseDouble(aux1);
jTextArea1.setText("La multiplicacion es:\n" +Operaciones.multiplicacion(x, r));
}
if(aux2 == "/"){
String aux1 = jTextField1.getText();
double r = Double.parseDouble(aux1);
jTextArea1.setText("La division es:\n" +Operaciones.division(x,r));
}
}
private void jButton22ActionPerformed(java.awt.event.ActionEvent evt) {
aux="";
jTextField1.setText("");
}