-import java.io.BufferedReader;
-import java.io.ByteArrayInputStream;
-import java.io.FileReader;
-import java.io.IOException;
-import java.io.InputStream;
-import java.io.InputStreamReader;
-import java.net.HttpURLConnection;
-import java.util.HashMap;
-import java.util.Map;
-import java.util.NoSuchElementException;
-import java.util.Properties;
-import java.util.StringTokenizer;