"Plusieurs marqueurs sur cette ligne"

Question

Je suis le tutoriel Stockwatcher.

Lorsque j'essaie de l'exécuter, je reçois cette erreur ?: "Plusieurs marqueurs sur cette ligne" (j'ai ajouté un commentaire dans cette ligne ci-dessous).

package com.google.gwt.sample.stockwatcher.client; 

import com.google.gwt.core.client.EntryPoint; 
import com.google.gwt.event.dom.client.ClickEvent; 
import com.google.gwt.event.dom.client.ClickHandler; 
import com.google.gwt.event.dom.client.KeyCodes; 
import com.google.gwt.event.dom.client.KeyPressEvent; 
import com.google.gwt.event.dom.client.KeyPressHandler; 
import com.google.gwt.i18n.client.NumberFormat; 
import com.google.gwt.user.client.ui.Label; 
import com.google.gwt.user.client.ui.Button; 
import com.google.gwt.user.client.ui.FlexTable; 
import com.google.gwt.user.client.ui.HorizontalPanel; 
import com.google.gwt.user.client.ui.TextBox; 
import com.google.gwt.user.client.ui.VerticalPanel; 
import com.google.gwt.user.client.ui.RootPanel; 
import com.google.gwt.user.client.Random; 
import com.google.gwt.user.client.Timer; 
import com.google.gwt.user.client.Window; 
import java.util.ArrayList; 

public class StockWatcher implements EntryPoint { 

    private static final int REFRESH_INTERVAL = 5000; 
    private VerticalPanel mainPanel = new VerticalPanel(); 
    private FlexTable stocksFlexTable = new FlexTable(); 
    private HorizontalPanel addPanel = new HorizontalPanel(); 
    private TextBox newSymbolTextBox = new TextBox(); 
    private Button addStockButton = new Button("Add"); 
    private Label lastUpdatedLabel = new Label(); 
    private ArrayList<String> stocks = new ArrayList<String>(); 

    /** 
    * Entry point method. 
    */ 
    public void onModuleLoad() { 

    // Create table for stock data. 
    stocksFlexTable.setText(0, 0, "Symbol"); 
    stocksFlexTable.setText(0, 1, "Price"); 
    stocksFlexTable.setText(0, 2, "Change"); 
    stocksFlexTable.setText(0, 3, "Remove"); 

    // Assemble Add Stock panel. 
    addPanel.add(newSymbolTextBox); 
    addPanel.add(addStockButton); 

    // Assemble Main panel. 
    mainPanel.add(stocksFlexTable); 
    mainPanel.add(addPanel); 
    mainPanel.add(lastUpdatedLabel); 

    // Associate the Main panel with the HTML host page. 
    RootPanel.get("stockList").add(mainPanel);  

    // Move cursor focus to the input box. 
    newSymbolTextBox.setFocus(true); 

    // Setup timer to refresh list automatically. 
    Timer refreshTimer = new Timer() { 
     @Override 
     public void run() { 
     refreshWatchList(); 
     } 

    }; 
    refreshTimer.scheduleRepeating(REFRESH_INTERVAL); //THIS IS THE LINE OF THE 

    // Listen for mouse events on the Add button. 
    addStockButton.addClickHandler(new ClickHandler() { 
     public void onClick(ClickEvent event) { 
     addStock(); 
     } 
    }); 

    // Listen for keyboard events in the input box. 
    newSymbolTextBox.addKeyPressHandler(new KeyPressHandler() { 
     public void onKeyPress(KeyPressEvent event) { 
      System.out.println("foo=" + KeyCodes.KEY_ENTER); 
      System.out.println("bar=" + (int)event.getCharCode()); 
     if (event.getCharCode() == KeyCodes.KEY_ENTER) { 


      addStock(); 
     } 
     } 
    }); 

    } 

    /** 
    * Add stock to FlexTable. Executed when the user clicks the addStockButton or 
    * presses enter in the newSymbolTextBox. 
    */ 
    private void addStock() { 
    final String symbol = newSymbolTextBox.getText().toUpperCase().trim(); 
    newSymbolTextBox.setFocus(true); 

    // Stock code must be between 1 and 10 chars that are numbers, letters, or dots. 
    if (!symbol.matches("^[0-9A-Z\\.]{1,10}$")) { 
     Window.alert("'" + symbol + "' is not a valid symbol."); 
     newSymbolTextBox.selectAll(); 
     return; 
    } 

    newSymbolTextBox.setText(""); 

    // Don't add the stock if it's already in the table. 
    if (stocks.contains(symbol)) 
     return; 

    // Add the stock to the table. 
    int row = stocksFlexTable.getRowCount(); 
    stocks.add(symbol); 
    stocksFlexTable.setText(row, 0, symbol); 

    // Add a button to remove this stock from the table. 
    Button removeStockButton = new Button("x"); 
    removeStockButton.addClickHandler(new ClickHandler() { 
     public void onClick(ClickEvent event) { 
     int removedIndex = stocks.indexOf(symbol); 
     stocks.remove(removedIndex);  stocksFlexTable.removeRow(removedIndex + 1); 
     } 
    }); 
    stocksFlexTable.setWidget(row, 3, removeStockButton); 

    // Get the stock price. 
    refreshWatchList(); 

    } 

    private void refreshWatchList() { 
    final double MAX_PRICE = 100.0; // $100.00 
    final double MAX_PRICE_CHANGE = 0.02; // +/- 2% 

    StockPrice[] prices = new StockPrice[stocks.size()]; 
    for (int i = 0; i < stocks.size(); i++) { 
     double price = Random.nextDouble() * MAX_PRICE; 
     double change = price * MAX_PRICE_CHANGE 
      * (Random.nextDouble() * 2.0 - 1.0); 

     prices[i] = new StockPrice(stocks.get(i), price, change); 
    } 

    updateTable(prices); 

    } 

    /** 
    * Update the Price and Change fields all the rows in the stock table. 
    * 
    * @param prices Stock data for all rows. 
    */ 
    private void updateTable(StockPrice[] prices) { 
    for (int i = 0; i < prices.length; i++) { 
     updateTable(prices[i]); 
     } 
    } 

    /** 
    * Update a single row in the stock table. 
    * 
    * @param price Stock data for a single row. 
    */ 
    private void updateTable(StockPrice price) { 
    // Make sure the stock is still in the stock table. 
    if (!stocks.contains(price.getSymbol())) { 
     return; 
    } 

    int row = stocks.indexOf(price.getSymbol()) + 1; 

    // Format the data in the Price and Change fields. 
    String priceText = NumberFormat.getFormat("#,##0.00").format(
     price.getPrice()); 
    NumberFormat changeFormat = NumberFormat.getFormat("+#,##0.00;-#,##0.00"); 
    String changeText = changeFormat.format(price.getChange()); 
    String changePercentText = changeFormat.format(price.getChangePercent()); 

    // Populate the Price and Change fields with new data. 
    stocksFlexTable.setText(row, 1, priceText); 
    stocksFlexTable.setText(row, 2, changeText + " (" + changePercentText 
     + "%)"); 
    } 

} 

C'est la pile d'erreurs:

StockWatcher [Web Application] 
    com.google.gwt.dev.DevMode at localhost:56938 
     Thread [main] (Running) 
     Thread [Thread-1] (Running) 
     Daemon Thread [Thread-2] (Running) 
     Daemon Thread [UnitWriteThread] (Running) 
     Daemon Thread [Timer-0] (Running) 
     Daemon Thread [Code server listener] (Running) 
     Daemon Thread [com.google.gwt.thirdparty.guava.common.base.internal.Finalizer] (Running)  
     Thread [2048426764@qtp-774727454-1 - Acceptor0 SelectChannelConnector@0.0.0.0:8888] (Running) 
     Thread [2108438076@qtp-774727454-0] (Running) 
     Daemon Thread [Timer-1] (Running) 
     Daemon Thread [Code server for stockwatcher from Mozilla/5.0 (X11; Linux x86_64; rv:7.0.1) Gecko/20100101 Firefox/7.0.1 on http://127.0.0.1:8888/StockWatcher.html?gwt.codesvr=127.0.0.1:9997 @ 1hS?FL4(4E4"'T^J] (Suspended (breakpoint at line 67 in StockWatcher)) 
      StockWatcher.onModuleLoad() line: 67  
      NativeMethodAccessorImpl.invoke0(Method, Object, Object[]) line: not available [native method] 
      NativeMethodAccessorImpl.invoke(Object, Object[]) line: 57 
      DelegatingMethodAccessorImpl.invoke(Object, Object[]) line: 43 
      Method.invoke(Object, Object...) line: 601 
      ModuleSpaceOOPHM(ModuleSpace).onLoad(TreeLogger) line: 396 
      OophmSessionHandler.loadModule(BrowserChannelServer, String, String, String, String, String, byte[]) line: 200 
      BrowserChannelServer.processConnection() line: 525 
      BrowserChannelServer.run() line: 363  
      Thread.run() line: 722 
    /usr/lib/jdk1.7.0_01/bin/java (Nov 22, 2011 12:45:50 PM)  

Javi

Answer 1

Votre liste d'erreur ne communique pas beaucoup. Il dit juste "(Suspendu (point de rupture à la ligne 67 dans StockWatcher))" qui est vous arrêter manuellement le processus. Laissez si échouez et collez cela.

Dans tous les cas, je ne vois aucun problème dans la ligne spécifique. Une chose qui peut gâcher le compilateur est un ( ou { supplémentaire, sinon, essayez de nettoyer le projet, en effaçant le code généré par GWT et en reconstruisant.

Answer 2

marqueurs multiples est rien, mais s'il y a plus d'un mal à la ligne ce que vous avez codé ».

Le principal problème est que vous essayez d'insérer plus d'un déclarations sont directement dans une classe, constructeur, méthode etc ...,