1111
public class num1 {
public static void main(String[]args){
Boolean numbool = new Boolean(false);
Character numchar = new Character('Z');
Integer numint = new Integer(251);
Long numlong = new Long(4757);
Double numdou = new Double(3.1415926);
System.out.println(numbool);
System.out.println(numint);
System.out.println(numdou);
System.out.println(numlong);
System.out.println(numchar);
}
}
2222
import java.text.SimpleDateFormat;
import java.util.*;
public class num2 {
public static void main(String[] args) {
Date date = new Date();
System.out.println("时间:"+date);
String strDate = date.toString();
String year = strDate.substring(24,28);
String month = strDate.substring(4,7);
String day = strDate.substring(9,10);
String hour = strDate.substring(11,13);
String min = strDate.substring(14,16);
String sec = strDate.substring(17,19);
System.out.print(year+"年");
System.out.print(month+"月");
System.out.print(day+"日 ");
System.out.print(hour+"时");
System.out.print(min+"分");
System.out.println(sec+"秒");
SimpleDateFormat dateformat1=new SimpleDateFormat("yyyy年MM月dd日HH时mm分ss秒 E");
String a1 = dateformat1.format(new Date());
System.out.println("时间:"+a1);
}
}