我的JAVA課程: 3月 2015

(一)Hello, World

例1(JavaScript)
程式碼來源:JavaScript-基本結構 (Structure)

1.複製以下程式碼貼在一個新WordPad檔並將紅字處"World"更為自己名字

<html>
<head>
<title> The First Example: Hello, World </title>
</head>
<body>
<h2> This line is HTML </h2>

<script language="JavaScript">

</script>
<noscript>
Sorry, but your browser doesn't run JavaScript.
</noscript>

<h2> This line is HTML </h2>
</body>
</html>

2.儲存檔命名為"index.htm"

3.執行如以下圖即成功

*注意:使用IE瀏覽器可能因無法支援檔案顯示"Sorry, but your browser doesn't run JavaScript."

請使用其他瀏覽器瀏覽

例2(Java SE)

程式碼來源:The Java™ Tutorials-"Hello World!" for Microsoft Windows

1.複製以下程式碼貼在一個新WordPad檔

/**
 * The HelloWorldApp class implements an application that
 * simply prints "Hello World!" to standard output.
 */
class HelloWorldApp {
    public static void main(String[] args) {
        System.out.println("Hello World!"); // Display the string.
    }
}

2.儲存檔名命為"HelloWorldApp.java"
3.使用命令提示字元作Java編譯如下圖即成功

(二)電腦IP位址(以教室作業用電腦為範例IP)

例1(JavaScript)

程式碼來源:JavaScript Visitor IP Address and Host Name

1.複製以下程式碼貼在一個新WordPad檔

<script language="JavaScript">
VIH_BackColor = "palegreen";
VIH_ForeColor = "navy";
VIH_FontPix = "16";
VIH_DisplayFormat = "You are visiting from:<br>IP Address: %%IP%%<br>Host: %%HOST%%";
VIH_DisplayOnPage = "yes";
</script>
<script language="JavaScript" src="http://scripts.hashemian.com/js/visitorIPHOST.js.php"></script>

2.儲存檔命名為"IPAdress.htm"

3.執行如以下圖即成功

例2(Java SE)

程式碼來源:XML Technology Research Lab-java.net.InetAddress

1.複製以下程式碼貼在一個新WordPad檔

import java.net.*;

public class TestInet1 {
  public static void main(String argv[]) 
  {
    try {
      InetAddress myip = InetAddress.getLocalHost();

      System.out.println(myip.getHostName());
      System.out.println(myip.getHostAddress());
    } catch (UnknownHostException e) {
      System.out.println("Error: unable to resolve localhost");
    }
  }
}

2.儲存檔名命為"TestInet1.java"
3.使用命令提示字元作Java編譯如下圖即成功