import java.io.BufferedInputStream;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.Reader;
import java.net.URL;
import java.net.URLConnection;
import java.util.Date;
public class Main {
public static void main(String[] args) throws Exception {
Date today = new Date();
long millisecondsPerDay = 24 * 60 * 60 * 1000;
URL u = new URL("http://www.java2s.com");
URLConnection uc = u.openConnection();
uc.setIfModifiedSince((new Date(today.getTime() - millisecondsPerDay)).getTime());
InputStream in = new BufferedInputStream(uc.getInputStream());
Reader r = new InputStreamReader(in);
int c;
while ((c = r.read()) != -1) {
System.out.print((char) c);
}
}
}
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