如何比较当前时间与时间范围？ [英] How to compare current time with time range?

问题描述

我有两个字符串变量 - time1 和 time2 。两者都包含 HH：MM 格式的值。我如何查询：

I have two String variables - time1 and time2. Both contain value in the format HH:MM. How can I check:

1. 如果当前时间在
   time1 和 time2？


2. time1 将在最近的$ b $内发生b小时？

1. If the current time is within time1 and time2?
2. time1 will happen in the nearest hour?

更新。
我已实施以下内容转换 time1 到日期格式。但它使用折旧方法：

Upd. I've implemented the following to convert time1 to Date format. But it uses depreciated methods:

Date clTime1 = new Date();

SimpleDateFormat timeParser = new SimpleDateFormat("HH:mm", Locale.US);
try {
  clTime1 = timeParser.parse(time1);
} catch (ParseException e) {
}

Calendar now = Calendar.getInstance();
clTime1.setYear(now.get(Calendar.YEAR) - 1900);
clTime1.setMonth(now.get(Calendar.MONTH));
clTime1.setDate(now.get(Calendar.DAY_OF_MONTH));
System.out.println(clTime1.toString());

推荐答案

• 转换两个字符串到日期
  对象（也是时间对象）
  创建一个新的日期对象。


• 这将是
  包含当前时间。


• 使用
  Date.before（）和Date.after（）方法确定
  是否在时间间隔内。


• Convert the two strings to Date objects (which are also time objects) Create a new Date object.
• This will contain the current time.
• Use the Date.before() and Date.after() methods to determine if you are in the time interval.

编辑：你应该可以直接使用它（并且没有弃用的方法）

You should be able to use this directly (and no deprecated methods)

public static final String inputFormat = "HH:mm";

private Date date;
private Date dateCompareOne;
private Date dateCompareTwo;

private String compareStringOne = "9:45";
private String compareStringTwo = "1:45";

SimpleDateFormat inputParser = new SimpleDateFormat(inputFormat, Locale.US);

private void compareDates(){
    Calendar now = Calendar.getInstance();

    int hour = now.get(Calendar.HOUR);
    int minute = now.get(Calendar.MINUTE);

    date = parseDate(hour + ":" + minute);
    dateCompareOne = parseDate(compareStringOne);
    dateCompareTwo = parseDate(compareStringTwo);

    if ( dateCompareOne.before( date ) && dateCompareTwo.after(date)) {
        //yada yada
    }
}

private Date parseDate(String date) {

    try {
        return inputParser.parse(date);
    } catch (java.text.ParseException e) {
        return new Date(0);
    }
}

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