Código de Java - Simular carrera de caballos con threads

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Simular carrera de caballos con threadsgráfica de visualizaciones


Java

Publicado el 1 de Noviembre del 2019 por Administrador
768 visualizaciones desde el 1 de Noviembre del 2019
Ventana en la que se crean 4 progressbar, y mediante 4 hilos que representan cada uno de los caballos, se van moviendo aleatoriamente.

caballos_thread

20190515

Publicado el 1 de Noviembre del 2019gráfica de visualizaciones de la versión: 20190515
769 visualizaciones desde el 1 de Noviembre del 2019
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Forma parte de DDR
 
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import java.util.Observable;
import java.util.Observer;
import java.util.logging.Level;
import java.util.logging.Logger;
 
public class FrmCarrera extends javax.swing.JFrame implements Observer {
 
    private Thread[] hilos;
 
 
    public FrmCarrera() {
        initComponents();
        hilos = new Thread[4];
    }
 
    /**
     * This method is called from within the constructor to initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is always
     * regenerated by the Form Editor.
     */
    @SuppressWarnings("unchecked")
    // <editor-fold defaultstate="collapsed" desc="Generated Code">//GEN-BEGIN:initComponents
    private void initComponents() {
 
        pg1 = new javax.swing.JProgressBar();
        jLabel1 = new javax.swing.JLabel();
        pg2 = new javax.swing.JProgressBar();
        jLabel2 = new javax.swing.JLabel();
        pg3 = new javax.swing.JProgressBar();
        jLabel3 = new javax.swing.JLabel();
        pg4 = new javax.swing.JProgressBar();
        jLabel4 = new javax.swing.JLabel();
        btnIniciar = new javax.swing.JButton();
        jLabel5 = new javax.swing.JLabel();
        lblGanador = new javax.swing.JLabel();
 
        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
 
        pg1.setStringPainted(true);
 
        jLabel1.setText("Caballo 1");
 
        pg2.setStringPainted(true);
 
        jLabel2.setText("Caballo 2");
 
        pg3.setStringPainted(true);
 
        jLabel3.setText("Caballo 3");
 
        pg4.setStringPainted(true);
 
        jLabel4.setText("Caballo 4");
 
        btnIniciar.setText("Iniciar");
        btnIniciar.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                btnIniciarActionPerformed(evt);
            }
        });
 
        jLabel5.setText("El ganador es: ");
 
        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
        getContentPane().setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addGroup(layout.createSequentialGroup()
                        .addContainerGap()
                        .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                            .addGroup(layout.createSequentialGroup()
                                .addComponent(jLabel1)
                                .addGap(18, 18, 18)
                                .addComponent(pg1, javax.swing.GroupLayout.PREFERRED_SIZE, 533, javax.swing.GroupLayout.PREFERRED_SIZE))
                            .addGroup(layout.createSequentialGroup()
                                .addComponent(jLabel2)
                                .addGap(18, 18, 18)
                                .addComponent(pg2, javax.swing.GroupLayout.PREFERRED_SIZE, 533, javax.swing.GroupLayout.PREFERRED_SIZE))
                            .addGroup(layout.createSequentialGroup()
                                .addComponent(jLabel3)
                                .addGap(18, 18, 18)
                                .addComponent(pg3, javax.swing.GroupLayout.PREFERRED_SIZE, 533, javax.swing.GroupLayout.PREFERRED_SIZE))
                            .addGroup(layout.createSequentialGroup()
                                .addComponent(jLabel4)
                                .addGap(18, 18, 18)
                                .addComponent(pg4, javax.swing.GroupLayout.PREFERRED_SIZE, 533, javax.swing.GroupLayout.PREFERRED_SIZE))
                            .addComponent(btnIniciar, javax.swing.GroupLayout.PREFERRED_SIZE, 595, javax.swing.GroupLayout.PREFERRED_SIZE)))
                    .addGroup(layout.createSequentialGroup()
                        .addGap(225, 225, 225)
                        .addComponent(jLabel5)
                        .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                        .addComponent(lblGanador, javax.swing.GroupLayout.PREFERRED_SIZE, 72, javax.swing.GroupLayout.PREFERRED_SIZE)))
                .addContainerGap(19, Short.MAX_VALUE))
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addGap(33, 33, 33)
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addGroup(layout.createSequentialGroup()
                        .addGap(9, 9, 9)
                        .addComponent(jLabel1))
                    .addComponent(pg1, javax.swing.GroupLayout.PREFERRED_SIZE, 40, javax.swing.GroupLayout.PREFERRED_SIZE))
                .addGap(18, 18, 18)
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addGroup(layout.createSequentialGroup()
                        .addGap(9, 9, 9)
                        .addComponent(jLabel2))
                    .addComponent(pg2, javax.swing.GroupLayout.PREFERRED_SIZE, 40, javax.swing.GroupLayout.PREFERRED_SIZE))
                .addGap(18, 18, 18)
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addGroup(layout.createSequentialGroup()
                        .addGap(9, 9, 9)
                        .addComponent(jLabel3))
                    .addComponent(pg3, javax.swing.GroupLayout.PREFERRED_SIZE, 40, javax.swing.GroupLayout.PREFERRED_SIZE))
                .addGap(18, 18, 18)
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addGroup(layout.createSequentialGroup()
                        .addGap(9, 9, 9)
                        .addComponent(jLabel4))
                    .addComponent(pg4, javax.swing.GroupLayout.PREFERRED_SIZE, 40, javax.swing.GroupLayout.PREFERRED_SIZE))
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 20, Short.MAX_VALUE)
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
                    .addComponent(jLabel5, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                    .addComponent(lblGanador, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
                .addGap(18, 18, 18)
                .addComponent(btnIniciar, javax.swing.GroupLayout.PREFERRED_SIZE, 45, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addGap(34, 34, 34))
        );
 
        pack();
    }// </editor-fold>//GEN-END:initComponents
 
    private void btnIniciarActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_btnIniciarActionPerformed
 
        this.btnIniciar.setEnabled(false);
        this.lblGanador.setText("");
 
        for (int i = 0; i < hilos.length; i++) {
            Caballo c = new Caballo((i+1)+"");
            c.addObserver(this);
            hilos[i] = new Thread(c);
            hilos[i].start();
        }
 
    }//GEN-LAST:event_btnIniciarActionPerformed
 
    private void terminar(){
 
        for (int i = 0; i < hilos.length; i++) {
            hilos[i].interrupt();
        }
 
    }
 
    /**
     * @param args the command line arguments
     */
    public static void main(String args[]) {
        /* Set the Nimbus look and feel */
        //<editor-fold defaultstate="collapsed" desc=" Look and feel setting code (optional) ">
        /* If Nimbus (introduced in Java SE 6) is not available, stay with the default look and feel.
         * For details see http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html 
         */
        try {
            for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) {
                if ("Nimbus".equals(info.getName())) {
                    javax.swing.UIManager.setLookAndFeel(info.getClassName());
                    break;
                }
            }
        } catch (ClassNotFoundException ex) {
            java.util.logging.Logger.getLogger(FrmCarrera.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (InstantiationException ex) {
            java.util.logging.Logger.getLogger(FrmCarrera.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (IllegalAccessException ex) {
            java.util.logging.Logger.getLogger(FrmCarrera.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (javax.swing.UnsupportedLookAndFeelException ex) {
            java.util.logging.Logger.getLogger(FrmCarrera.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        }
        //</editor-fold>
 
        /* Create and display the form */
        java.awt.EventQueue.invokeLater(new Runnable() {
            public void run() {
                new FrmCarrera().setVisible(true);
            }
        });
    }
 
    // Variables declaration - do not modify//GEN-BEGIN:variables
    private javax.swing.JButton btnIniciar;
    private javax.swing.JLabel jLabel1;
    private javax.swing.JLabel jLabel2;
    private javax.swing.JLabel jLabel3;
    private javax.swing.JLabel jLabel4;
    private javax.swing.JLabel jLabel5;
    private javax.swing.JLabel lblGanador;
    private javax.swing.JProgressBar pg1;
    private javax.swing.JProgressBar pg2;
    private javax.swing.JProgressBar pg3;
    private javax.swing.JProgressBar pg4;
    // End of variables declaration//GEN-END:variables
 
    @Override
    public void update(Observable o, Object arg) {
 
        Caballo c = (Caballo) o;
        int porcentaje = (int) arg;
 
        switch (c.getNombre()) {
            case "1":
                this.pg1.setValue(porcentaje);
                break;
 
            case "2":
                this.pg2.setValue(porcentaje);
                break;
 
            case "3":
                this.pg3.setValue(porcentaje);
                break;
 
            case "4":
                this.pg4.setValue(porcentaje);
                break;
 
        }
 
        if(porcentaje>=100){
           terminar();
           this.btnIniciar.setEnabled(true);
           this.lblGanador.setText("Caballo "+c.getNombre());
        }
 
    }
 
}
 
class Caballo extends Observable implements Runnable {
 
    private String nombre;
 
    public Caballo(String nombre) {
        this.nombre = nombre;
    }
 
    public String getNombre() {
        return nombre;
    }
 
    @Override
    public void run() {
 
        int porcentaje = 0;
        int numAleatorio;
        try {
            while (porcentaje < 100) {
                numAleatorio = generaNumeroAleatorio(1, 15);
                System.out.println("Caballo " + nombre + " ha aumentado en " + numAleatorio);
                porcentaje += numAleatorio;
 
                this.setChanged();
                this.notifyObservers(porcentaje);
                this.clearChanged();
 
                Thread.sleep(1000);
 
            }
        } catch (InterruptedException ex) {
            System.out.println("Hilo interrumpido");
        }
 
    }
 
    public static int generaNumeroAleatorio(int minimo, int maximo) {
        int num = (int) Math.floor(Math.random() * (maximo - minimo + 1) + (minimo));
        return num;
    }
 
}



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