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Lenguaje
Java usando Swing
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Descripción
Calcular la potencia de un número.
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import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class PotenciaDeUnNumero extends JFrame implements ActionListener {
private static final long serialVersionUID = 1L;
private JTextField field_base, field_exponente;
private JLabel label_potencia;
private JButton button;
public Algoritmo() {
field_base = new JTextField(4);
field_exponente = new JTextField(4);
label_potencia = new JLabel("", JLabel.RIGHT);
button = new JButton("Procesar");
Container pane = getContentPane();
pane.setLayout(new BorderLayout());
JPanel panel, subpanel;
panel = new JPanel(new BorderLayout());
subpanel = new JPanel(new GridLayout(2, 1));
subpanel.add(new JLabel("Ingresa el valor de base:"));
subpanel.add(new JLabel("Ingresa el valor de exponente:"));
panel.add(subpanel, BorderLayout.WEST);
subpanel = new JPanel(new GridLayout(2, 1));
subpanel.add(field_base);
subpanel.add(field_exponente);
panel.add(subpanel);
pane.add(panel, BorderLayout.NORTH);
panel = new JPanel(new FlowLayout());
panel.add(button);
pane.add(panel);
panel = new JPanel(new BorderLayout());
subpanel = new JPanel(new GridLayout(1, 1));
subpanel.add(new JLabel("Valor de potencia:"));
panel.add(subpanel, BorderLayout.WEST);
subpanel = new JPanel(new GridLayout(1, 1));
subpanel.add(label_potencia);
panel.add(subpanel);
pane.add(panel, BorderLayout.SOUTH);
button.addActionListener(this);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
pack();
setLocationRelativeTo(null);
}
@Override
public void actionPerformed(ActionEvent actionEvent) {
double base, exponente, potencia;
try {
base = Double.parseDouble(field_base.getText());
exponente = Double.parseDouble(field_exponente.getText());
} catch (NumberFormatException numberFormatException) {
return;
}
potencia=Math.pow(base,exponente);
label_potencia.setText(String.valueOf(potencia));
pack();
}
public static void main(String[] args) {
new Algoritmo().setVisible(true);
}
}
import java.awt.event.*;
import javax.swing.*;
public class PotenciaDeUnNumero extends JFrame implements ActionListener {
private static final long serialVersionUID = 1L;
private JTextField field_base, field_exponente;
private JLabel label_potencia;
private JButton button;
public Algoritmo() {
field_base = new JTextField(4);
field_exponente = new JTextField(4);
label_potencia = new JLabel("", JLabel.RIGHT);
button = new JButton("Procesar");
Container pane = getContentPane();
pane.setLayout(new BorderLayout());
JPanel panel, subpanel;
panel = new JPanel(new BorderLayout());
subpanel = new JPanel(new GridLayout(2, 1));
subpanel.add(new JLabel("Ingresa el valor de base:"));
subpanel.add(new JLabel("Ingresa el valor de exponente:"));
panel.add(subpanel, BorderLayout.WEST);
subpanel = new JPanel(new GridLayout(2, 1));
subpanel.add(field_base);
subpanel.add(field_exponente);
panel.add(subpanel);
pane.add(panel, BorderLayout.NORTH);
panel = new JPanel(new FlowLayout());
panel.add(button);
pane.add(panel);
panel = new JPanel(new BorderLayout());
subpanel = new JPanel(new GridLayout(1, 1));
subpanel.add(new JLabel("Valor de potencia:"));
panel.add(subpanel, BorderLayout.WEST);
subpanel = new JPanel(new GridLayout(1, 1));
subpanel.add(label_potencia);
panel.add(subpanel);
pane.add(panel, BorderLayout.SOUTH);
button.addActionListener(this);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
pack();
setLocationRelativeTo(null);
}
@Override
public void actionPerformed(ActionEvent actionEvent) {
double base, exponente, potencia;
try {
base = Double.parseDouble(field_base.getText());
exponente = Double.parseDouble(field_exponente.getText());
} catch (NumberFormatException numberFormatException) {
return;
}
potencia=Math.pow(base,exponente);
label_potencia.setText(String.valueOf(potencia));
pack();
}
public static void main(String[] args) {
new Algoritmo().setVisible(true);
}
}