Java 如何从字符串变量中获取小时和分钟？
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How to get hours and minutes from a String variable ?
提问by user2219097
I have a String timme = "13:10". I was wondering how would I best go about getting the hours and minutes and converting them into integers. i.e. int hours = 13 , int minute = 10. I know a for-loop wouldn't be the most efficient way, is there anything simpler?
我有一个String timme = "13:10". 我想知道如何最好地获取小时和分钟并将它们转换为整数。即 int hours = 13 , int minute = 10. 我知道 for 循环不是最有效的方法，有没有更简单的方法？
采纳答案by user3317558
回答by Hamid Shatu
You can try this...
你可以试试这个...
String time = "13:10";
SimpleDateFormat formatter = = new SimpleDateFormat("hh:mm");
Date dTime = formatter.parse(time);
int hour = dTime.getHours();
int minute = dTime.getMinutes();
回答by Ilia Kopylov
Better use Dateand DateFormat:
更好地使用Date和DateFormat：
String time = "13:10";
DateFormat sdf = new SimpleDateFormat("HH:mm"); // or "hh:mm" for 12 hour format
Date date = sdf.parse(time);
date.getHours(); // int
date.getMinutes(); // int
回答by Sivakumar S
You could use Calendarobject of java instead of Dateobject,
您可以使用Calendarjava 的Date对象而不是对象，
SimpleDateFormat dateFormatter = new SimpleDateFormat("HH:mm", Locale.ENGLISH);
try {
Calendar c = Calendar.getInstance();
c.setTime(dateFormatter.parse("07:30"));
String hour = String.valueOf(c.get(Calendar.HOUR_OF_DAY));
String mintue = String.valueOf(c.get(Calendar.MINUTE));
System.out.println("Hour: " + hour);
System.out.println("Minute: " + mintue);
} catch (ParseException e) {
e.printStackTrace();
}
回答by Venkat Ram Reddy Kolla
JAVA 8
爪哇 8
LocalTime localTime = LocalTime.parse("13:10", DateTimeFormatter.ofPattern("HH:mm"));
int hour = localTime.getHour();
int minute = localTime.getMinute();
System.out.println("Hours : "+hour +" Minutes : "+minute);
