java中获取系统时间_JAVA中获取当前系统时间
1、日期格式化
SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy/MM/dd HH:mm:ss");//可以方便地修改日期格式
String hehe = dateFormat.format(new Date());
System.out.println(hehe);
2、获取独立的年月日，时分秒
Calendar c = Calendar.getInstance();//可以对每个时间域单独修改
int year = c.get(Calendar.YEAR);
int month = c.get(Calendar.MONTH)+1;
int date = c.get(Calendar.DATE);
int hour = c.get(Calendar.HOUR_OF_DAY);
int minute = c.get(Calendar.MINUTE);
int second = c.get(Calendar.SECOND);
System.out.println(year + "/" + month + "/" + date + " " +hour + ":" +minute + ":" + second);
1、日期格式化 SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy/MM/dd HH:mm:ss");//可以方便地修改日期格式 String hehe = dateFormat.format(new Date()); System.out.println(hehe); 2、获取独立的年月日，时分秒 Calendar c = Calendar.getInstance();//可以对每个时间域单独修改 int year = c.get(Calendar.YEAR); int month = c.get(Calendar.MONTH)+1; int date = c.get(Calendar.DATE); int hour = c.get(Calendar.HOUR_OF_DAY); int minute = c.get(Calendar.MINUTE); int second = c.get(Calendar.SECOND); System.out.println(year + "/" + month + "/" + date + " " +hour + ":" +minute + ":" + second);