public class demo1swing extends JFrame implements ActionListener{
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1 import java.io.*; import java.net.*; import java.io.*; import javax.swing.*; import java.awt.*; import java.awt.event.*; public class demo1swing extends JFrame implements ActionListener JButton demodulacion; JButton cerrar; JTextField frecuenciatextf; String programa; Process proceso=null; BufferedWriter stdoutput=null; public static void main(string args[]) float fc, coeff; demo1swing mod = new demo1swing(); mod.ventanafrecuencia(); private void ventanafrecuencia() JFrame frame = new JFrame("Demodulador de AM "); Container c = frame.getcontentpane(); JLabel frecuencialabel = new JLabel("Introduzca la frecuencia de la portadora en Hz: "); frecuenciatextf = new JTextField(" "); demodulacion = new JButton("Demodular"); demodulacion.setactioncommand("demodulacion"); demodulacion.addactionlistener(this); cerrar = new JButton("Cerrar Ventana"); cerrar.setactioncommand("cerrar"); cerrar.addactionlistener(this); c.setlayout(new GridLayout(2,2)); c.add(frecuencialabel); c.add(frecuenciatextf); c.add(demodulacion); c.add(cerrar); //frame.pack(); frame.setsize(450,130); frame.setvisible(true); private void showinfodialog( String dialogo) JOptionPane.showMessageDialog(new JFrame(), dialogo); public void actionperformed( ActionEvent e )
![stdoutput=null; public static void main(string args[]) float fc, coeff; demo1swing mod = new demo1swing(); mod.](/docs-images/42/174086/images/page_1.jpg "ventanafrecuencia(); private void ventanafrecuencia() JFrame frame = new JFrame(\"Demodulador de AM \"); Container c = frame.")
2 String eventostr = e.getactioncommand(); if (eventostr.equals("demodulacion")) if (!(frecuenciatextf.gettext()).equals("")) float f=(new Float(frecuenciaTextF.getText())).floatValue(); selecciona(f); else showinfodialog("no se ha introducido ninguna frecuencia"); if (eventostr.equals("cerrar")) if(proceso!=null) try "Esc" en octal stdoutput.write("\033"); // Diagonal invertida: \033 = stdoutput.flush(); proceso.destroy(); System.out.println(proceso.exitValue()); proceso=null; catch(exception i) i.printstacktrace(); private void selecciona(float fc) BufferedReader br=null; FileInputStream in=null; PrintStream misalida=null; FileOutputStream fout=null; String s=null; int n=15;
3 int contador=1; if(fc <= && fc >= ) programa=("start dsk5l demo5"); else if(fc <= && fc >= ) programa=("start dsk5l demo51"); else if(fc <= && fc >= ) programa=("start dsk5l demo52"); else if(fc <= && fc >= ) programa=("start dsk5l demo53"); else if(fc <= && fc >= ) programa=("start dsk5l demo54"); else if(fc <= && fc >= ) programa=("start dsk5l demo55"); else if(fc <= && fc >= ) programa=("start dsk5l demo56"); else if(fc <= && fc >= ) programa=("start dsk5l demo57"); else if(fc <= && fc >= ) programa=("start dsk5l demo58"); else if(fc <= && fc >= ) programa=("start dsk5l demo59"); //programa mayor que 6 y menor que 7kHz else if(fc <= && fc >= )
4 programa=("start dsk5l demo6"); else if(fc <= && fc >= ) programa=("start dsk5l demo61"); else if(fc <= && fc >= ) programa=("start dsk5l demo62"); else if(fc <= && fc >= ) programa=("start dsk5l demo63"); else if(fc <= && fc >= ) programa=("start dsk5l demo64"); else if(fc <= && fc >= ) programa=("start dsk5l demo65"); else if(fc <= && fc >= ) programa=("start dsk5l demo66"); else if(fc <= && fc >= ) programa=("start dsk5l demo67"); else if(fc <= && fc >= ) programa=("start dsk5l demo68"); else if(fc <= && fc >= ) programa=("start dsk5l demo69"); //programa mayor que 7 y menor que 8kHz else if(fc <= && fc >= ) programa=("start dsk5l demo7"); else if(fc <= && fc >= )
5 programa=("start dsk5l demo71"); else if(fc <= && fc >= ) programa=("start dsk5l demo72"); else if(fc <= && fc >= ) programa=("start dsk5l demo73"); else if(fc <= && fc >= ) programa=("start dsk5l demo74"); else if(fc <= && fc >= ) programa=("start dsk5l demo75"); else if(fc <= && fc >= ) programa=("start dsk5l demo76"); else if(fc <= && fc >= ) programa=("start dsk5l demo77"); else if(fc <= && fc >= ) programa=("start dsk5l demo78"); else if(fc <= && fc >= ) programa=("start dsk5l demo79"); else if(fc <= && fc >= ) programa=("start dsk5l demo8"); try proceso = Runtime.getRuntime().exec(programa); stdoutput = new BufferedWriter (new OutputStreamWriter(proceso.getOutputStream()));
6 BufferedReader stdinput = new BufferedReader(new InputStreamReader(proceso.getInputStream())); BufferedReader stderror = new BufferedReader(new InputStreamReader(proceso.getErrorStream())); //read the output from the command while((s=stdinput.readline())!=null && (contador <= n)) System.out.println(s); contador=(contador+1); //Al terminar de imprimir la salida, regresa a habilitar la ventana de diálogo // read any errors from the attempted command // Deshabilitando esta parte del programa, se habilita nuevamente la ventana de diálogo /* while((s = stderror.readline())!= null) System.out.println(s); */ //cierra try catch (IOException e) System.out.println("Error al ejecutar el comando en MS-DOS para correr el programa"); e.printstacktrace(); System.exit(-1); //Cierra selecciona
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