[Java] HTMLファイル取得

●URL
openStream()

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import java.io.*;
import java.net.*;

class URLDemo{
	public static void main(String args[]){
		try{
			//
			URL url = new URL(args[0]);
			//
			InputStream is = url.openStream();
			//
			byte buffer[] = new byte[1024];
			int i;
			while((i = is.read(buffer)) != -1){
				System.out.write(buffer, 0, i);
			}
		}
		catch(Exception e){
			e.printStackTrace();
		}
	}
}
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使用例　JAVA URLDemo http://yahoo.co.jp/