boolean isNumeric(String s){ try { Double.parseDouble(s); } catch (Exception e) {return false;} return true; } BufferedReader in; int total; try {StringTokenizer ligne; String mot; in = new BufferedReader(new FileReader("test.txt")); while (in.ready()) { ligne = new StringTokenizer(in.readLine()); while (ligne.hasMoreTokens()){ mot = ligne.nextToken(); if (isNumeric(mot)) { total+=Integer.parseInt(mot); } else {out.println(mot);} } } out.println("\n Voici le total :" + total); } catch(Exception e){out.println (e.getMessage());}
import javax.swing.*; public class HelloWorldSwing { /** * Create the GUI and show it. For thread safety, * this method should be invoked from the * event-dispatching thread. */ private static void createAndShowGUI() { //Make sure we have nice window decorations. JFrame.setDefaultLookAndFeelDecorated(true); //Create and set up the window. JFrame frame = new JFrame("HelloWorldSwing"); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); //Add the ubiquitous "Hello World" label. JLabel label = new JLabel("Hello World"); frame.getContentPane().add(label); //Display the window. frame.pack(); frame.setVisible(true); } public static void main(String[] args) { //Schedule a job for the event-dispatching thread: //creating and showing this application's GUI. javax.swing.SwingUtilities.invokeLater(new Runnable() { public void run() { createAndShowGUI(); } }); } }
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