在Java中使用SimpleDateFormat（'yyyy'）显示年份
使用SimpleDateFormat（“yyyy”）显示年份-
// displaying year
Format f = new SimpleDateFormat("yyyy");
String strYear = f.format(new Date());
System.out.println("Year = "+strYear);由于我们已经使用了上面的Format和SimpleDateFormat类，因此导入以下软件包。这样，我们还使用了Date-
import java.text.Format; import java.text.SimpleDateFormat; import java.util.Date;
以下是一个例子-
示例
import java.text.Format;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Calendar;
public class Demo {
public static void main(String[] args) throws Exception {
// displaying current date and time
Calendar cal = Calendar.getInstance();
SimpleDateFormat simpleformat = new SimpleDateFormat("E, dd MMM yyyy HH:mm:ss Z");
System.out.println("Today's date and time = "+simpleformat.format(cal.getTime()));
// displaying date
Format f = new SimpleDateFormat("dd/MMMM/yyyy");
String strDate = f.format(new Date());
System.out.println("Current Date = "+strDate);
// displaying year
f = new SimpleDateFormat("yyyy");
String strYear = f.format(new Date());
System.out.println("Year = "+strYear);
// current time
f = new SimpleDateFormat("HH.mm.ss Z");
String strTime = f.format(new Date());
System.out.println("Current Time = "+strTime);
// displaying hour
f = new SimpleDateFormat("H");
String strHour = f.format(new Date());
System.out.println("Current Hour = "+strHour);
// displaying minutes
f = new SimpleDateFormat("mm");
String strMinute = f.format(new Date());
System.out.println("Current Minutes = "+strMinute);
// displaying seconds
f = new SimpleDateFormat("ss");
String strSeconds = f.format(new Date());
System.out.println("Current Seconds = "+strSeconds);
}
}输出结果
Today's date and time = Mon, 26 Nov 2018 09:19:54 +0000 Current Date = 26/November/2018 Year = 2018 Current Time = 09.19.54 +0000 Current Hour = 9 Current Minutes = 19 Current Seconds = 54