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ĬÈϹ¹Ô캯Êý£ºÃ»ÓÐÐβÎûÓз½·¨Ì壡È磺public Person() {}
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public class MyDate {
    private int day ;
    private int month ;
    private int year ;
    public Mydate(int d, int m, int y) {
   
     year = y;
   
        month = m;
   
        day = d;

}    

public void display() {

        System.out.println(year + " / " + month + " / " +day); 

}

public static void main(String[] args) {
             MyDate  m;

      m = new MyDate(22, 9, 2001);

      m.display();
    }   
}
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{
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import java.io.BufferedReader;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class ......
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