获取当前系统时间并在此之后添加30分钟

I want to get current time in my application.
Then i want to add 30 minutes in the current time.
can any one help me how to achieve this?

我想在我的申请中获得当前时间。然后我想在当前时间添加30分钟。谁能帮助我如何实现这一目标?

I am getting start and stop time from my web service. eg: ((start time)11:00 am to (stop time) 11:00 pm) now i want to add 30 minutes in the current time till the stop time reach.

我正在从我的网络服务开始和停止时间。例如:((开始时间)上午11:00到(停止时间)下午11:00)现在我想在当前时间加30分钟直到停止时间到达。

3 个解决方案

#1

Calendar now = Calendar.getInstance();
now.add(Calendar.MINUTE, 30);

And to output the time you could use

并输出您可以使用的时间

// 24 hours format
SimpleDateFormat df = new SimpleDateFormat("HH:mm");
// AM/PM format
SimpleDateFormat df = new SimpleDateFormat("hh:mm aa");

System.out.println(df.format(now.getTime()));

#2

Use the following:

使用以下内容:

//get current Time
long currentTime = System.currentTimeMillis();
//now add half an hour, 1 800 000 miliseconds = 30 minutes
long halfAnHourLater = currentTime + 1800000;

#3

System.currentTimeMillis()+(30*60*1000);

#1

Calendar now = Calendar.getInstance();
now.add(Calendar.MINUTE, 30);