Question

Java 怎么获取当前时间前一个小时的时间

Answer 1

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);
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);
//前一个小时的时间
System.out.println(year + "/" + month + "/" + date + " " +（hour - 1）+ ":" +minute + ":" + second);

Answer 2

java.util.Date now= new java.util.Date();

java.util.Date nowBefore1Hour= new java.util.Date(now.getTime()-3600000);

~