Java by API/javax.microedition.io/StreamConnection

StreamConnection: openInputStream() throws IOException

 
/* License
 * 
 * Copyright 1994-2004 Sun Microsystems, Inc. All Rights Reserved.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
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 *      this list of conditions and the following disclaimer.
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 * may be used to endorse or promote products derived from this software
 * without specific prior written permission.
 *  
 * This software is provided "AS IS," without a warranty of any kind. ALL
 * EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, INCLUDING
 * ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE
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import java.io.IOException;
import java.io.IOException;
import java.io.InputStream;
import javax.microedition.io.Connector;
import javax.microedition.io.StreamConnection;
import javax.microedition.lcdui.Display;
import javax.microedition.lcdui.TextBox;
import javax.microedition.midlet.MIDlet;
public class J2MEFirstExample extends MIDlet {
  private Display display;
  String url = "http://www.y.ru/hello.txt";
  public J2MEFirstExample() {
    display = Display.getDisplay(this);
  }
  /**
   * This will be invoked when we start the MIDlet
   */
  public void startApp() {
    try {
      getViaStreamConnection(url);
    } catch (IOException e) {
      e.printStackTrace();
    }
  }
  public void pauseApp() {
  }
  /**
   * Destroy must cleanup everything.
   */
  public void destroyApp(boolean unconditional) {
  }
  /**
   * read url via stream connection
   */
  void getViaStreamConnection(String url) throws IOException {
    StreamConnection c = null;
    InputStream s = null;
    StringBuffer b = new StringBuffer();
    TextBox t = null;
    try {
      c = (StreamConnection) Connector.open(url);
      s = c.openInputStream();
      int ch;
      while ((ch = s.read()) != -1) {
        b.append((char) ch);
      }
      System.out.println(b.toString());
      t = new TextBox("hello....", b.toString(), 1024, 0);
    } finally {
      if (s != null) {
        s.close();
      }
      if (c != null) {
        c.close();
      }
    }
    display.setCurrent(t);
  }
}