System.out.println("当前时间为:"+getTimeByHour());
System.out.println(getTimeByHour());
System.out.println("下一小时为:"+getTimeByHour(1));
System.out.println("对比结果为:"+getTimeByHour().compareTo(getTimeByHour(1)));
System.out.println("对比结果为:"+getTimeByHour(1).compareTo(getTimeByHour(0)));
System.out.println("对比结果为:"+getTimeByHour(1).compareTo(getTimeByHour(1)));
/**
* 获取当前时间
* @return
*/
public static String getTimeByHour() {
Calendar calendar = Calendar.getInstance();
calendar.set(Calendar.HOUR_OF_DAY, calendar.get(Calendar.HOUR_OF_DAY) + 0);
return new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(calendar.getTime());
}
/**
* 获取当前时间后一小时
* @param hour
* @return
*/
public static String getTimeByHour(int hour) {
Calendar calendar = Calendar.getInstance();
calendar.set(Calendar.HOUR_OF_DAY, calendar.get(Calendar.HOUR_OF_DAY) + hour);
return new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(calendar.getTime());
}
当前时间为:2017-03-28 23:42:06 下一小时为:2017-03-29 00:42:06 对比结果为:-1 对比结果为:1 对比结果为:0
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