java - 如何在android中将字符串转换为日期

Question

这个问题已经有答案了:

Convert string to Date in java (6 个回答)

已关闭 8 年前。

我有字符串日期时间“2014-10-13 18:22:54.71”，我想将其转换为 Date和

我将使用该算法

public static boolean IsthatMorethanTwo(String DateString) {
    Calendar thatDay = Calendar.getInstance();
    thatDay.setTime(new Date(DateString));
    Calendar today = Calendar.getInstance();
    long diff = today.getTimeInMillis() - thatDay.getTimeInMillis();
    long days = diff / (24 * 60 * 60 * 1000);
    return days >= 2;
}

我该怎么做？

Answer 1

您可以使用SimpleDateFormat类。

像这样:

String dateString = "2014-10-13 18:22:54.71";    
SimpleDateFormat format = 
        new SimpleDateFormat("yyyy-mm-dd HH:mm:ss.S");

try {
    Date parsed = format.parse(dateString);
}
catch(ParseException pe) {
    System.out.println("ERROR: Cannot parse \"" + dateString + "\"");
}