Đoạn code Java lấy ngày giờ theo định dạng

import java.util.Calendar;
 import java.text.SimpleDateFormat; 
public class DateUtils { 
public static final String DATE_FORMAT_NOW = "yyyy-MM-dd HH:mm:ss";  
public static String now()
 {     Calendar cal = Calendar.getInstance();
   SimpleDateFormat sdf = new SimpleDateFormat(DATE_FORMAT_NOW); 
  return sdf.format(cal.getTime());   
}    public static void  main(String arg[])
{     System.out.println("Now : " + DateUtils.now()); 
} }

Còn đây là một cách khác:

import java.util.Calendar;
 import java.text.SimpleDateFormat;
public class DateUtils {   
public static String now(String dateFormat)
{     Calendar cal = Calendar.getInstance();
   SimpleDateFormat sdf = new SimpleDateFormat(dateFormat); 
  return sdf.format(cal.getTime());    } 
 public static void  main(String arg[]) {
    System.out.println(DateUtils.now("dd MMMMM yyyy"));  
  System.out.println(DateUtils.now("yyyyMMdd"));  
  System.out.println(DateUtils.now("dd.MM.yy"));   
 System.out.println(DateUtils.now("MM/dd/yy"));    
System.out.println(DateUtils.now("yyyy.MM.dd G 'at' hh:mm:ss z"));  
  System.out.println(DateUtils.now("EEE, MMM d, ''yy"));  
  System.out.println(DateUtils.now("h:mm a"));    
System.out.println(DateUtils.now("H:mm:ss:SSS")); 
   System.out.println(DateUtils.now("K:mm a,z"));   
 System.out.println(DateUtils.now("yyyy.MMMMM.dd GGG hh:mm aaa"));
 } }

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Posted in: Lap trinh vien Java