package test.charles.JsoupExample;
import java.io.IOException;
import org.jsoup.Jsoup;
import org.jsoup.nodes.Document;
import org.jsoup.nodes.Element;
import org.jsoup.select.Elements;
public class App
{
public static void main( String[] args ) throws IOException
{
//read yahoo home page
String url = "https://tw.yahoo.com/";
Document doc = Jsoup.connect(url).get();
//get first news tab one
Element t1 = doc.getElementById("t1");
//get news title
Elements newsTitle = t1.select("a[href] > span");
//print size
System.out.println("size:" + newsTitle.size());
//print news title
for(Element e:newsTitle){
System.out.println("title:" + e.text());
}
}
}
package test.charles.CollectionSort;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.List;
public class App
{
public static void main( String[] args )
{
List userList = new ArrayList();
//add user name and age
userList.add(new User("user1",19));
userList.add(new User("user2",40));
userList.add(new User("user3",3));
userList.add(new User("user4",27));
userList.add(new User("user5",10));
userList.add(new User("user6",70));
//sort by user age
Collections.sort(userList, new Comparator() {
public int compare(User o1, User o2) {
return o1.getAge().compareTo(o2.getAge());
}
});
//print information
for(User s :userList){
System.out.println("name:" + s.getName() + ",age:" + s.getAge());
}
}
}
package lab.charles.email.test;
import java.util.Properties;
import javax.mail.*;
import javax.mail.internet.*;
public class MailServer {
public static void main(String[] args) throws Exception{
// mail server connection parameters
String host = "mail server";
String user = "user name";
String password = "password";
// connect to my pop3 inbox
Properties properties = System.getProperties();
Session session = Session.getDefaultInstance(properties);
Store store = session.getStore("pop3");
store.connect(host, user, password);
Folder inbox = store.getFolder("Inbox");
inbox.open(Folder.READ_ONLY);
// get the list of inbox messages
Message[] messages = inbox.getMessages();
if (messages.length == 0) System.out.println("No messages found.");
for (int i = 0; i < messages.length; i++) {
// stop after listing ten messages
if (i > 10) {
System.exit(0);
inbox.close(true);
store.close();
}
System.out.println("Message " + (i + 1));
System.out.println("From : " + messages[i].getFrom()[0]);
System.out.println("Subject : " + messages[i].getSubject());
System.out.println("Sent Date : " + messages[i].getSentDate());
System.out.println();
}
inbox.close(true);
store.close();
}
}