代码如下:
import java.text.SimpleDateFormat;
import java.util.Date;public class Lesson82 { /**
* @param args
*/
public static void main(String[] args) {
SimpleDateFormat sdf1=new SimpleDateFormat("yyyyMMDD");
SimpleDateFormat sdf2=new SimpleDateFormat("yyyy年MM月DD日");
Date date=null;
try{
date=sdf1.parse("20031121");
}catch(Exception e){
e.printStackTrace();
}
System.out.println(sdf2.format(date));
}}为什么程序输出: 2003年01月21日
import java.text.SimpleDateFormat;
import java.util.Date;public class Lesson82 { /**
* @param args
*/
public static void main(String[] args) {
SimpleDateFormat sdf1=new SimpleDateFormat("yyyyMMDD");
SimpleDateFormat sdf2=new SimpleDateFormat("yyyy年MM月DD日");
Date date=null;
try{
date=sdf1.parse("20031121");
}catch(Exception e){
e.printStackTrace();
}
System.out.println(sdf2.format(date));
}}为什么程序输出: 2003年01月21日
G era designator Text AD
y year Number 2009
M month in year Text & Number July & 07
d day in month Number 10
h hour in am/pm (1-12) Number 12
H hour in day (0-23) Number 0
m minute in hour Number 30
s second in minute Number 55
S millisecond Number 978
E day in week Text Tuesday
D day in year Number 189
F day of week in month Number 2 (2nd Wed in July)
w week in year Number 27
W week in month Number 2
a am/pm er Text PM
k hour in day (1-24) Number 24
K hour in am/pm (0-11) Number 0
z time zone Text Pacific Standard Time
' escape for text Delimiter (none)
' single quote Literal '
import java.text.SimpleDateFormat;
import java.util.Date;public class Lesson82 { /**
* @param args
*/
public static void main(String[] args) {
SimpleDateFormat sdf1=new SimpleDateFormat("yyyy-MM-dd");
SimpleDateFormat sdf2=new SimpleDateFormat("yyyy年MM月dd日");
Date date=null;
try{
date=sdf1.parse("2003-11-21");
}catch(Exception e){
e.printStackTrace();
}
System.out.println(sdf2.format(date));
}}
import java.text.SimpleDateFormat;
import java.util.Date;
public class TestDate {
public static void main(String[] args) {
SimpleDateFormat sdf1=new SimpleDateFormat("yyyyMMdd");
SimpleDateFormat sdf2=new SimpleDateFormat("yyyy年MM月dd日");
Date date=null;
try{
date=sdf1.parse("20031121");
System.out.println(date);
}catch(Exception e){
e.printStackTrace();
}
System.out.println(sdf2.format(date)); }}