java 根據類名示例化類

LocalDateTime類minusMinutes()方法 (LocalDateTime Class minusMinutes() method)

• minusMinutes() method is available in java.time package.

  minusMinutes()方法在java.time包中可用。

• minusMinutes() method is used to subtract the given minutes from this date-time object and return the LocalDateTime.

  minusMinutes()方法用于從該日期時間對象中減去給定的分鐘數，并返回LocalDateTime。

• minusMinutes() method is a non-static method, it is accessible with the class object only and if we try to access the method with the class name then we will get an error.

  minusMinutes()方法是一種非靜態方法，只能通過類對象訪問，如果嘗試使用類名稱訪問該方法，則會收到錯誤消息。

• minusMinutes() method may throw an exception at the time of performing subtraction.

  minusMinutes()方法在執行減法時可能會引發異常。

  DateTimeException – This exception may throw when the calculated result value exceeds the limit.

  DateTimeException –當計算結果值超出限制時，可能引發此異常。

Syntax:

句法：

public LocalDateTime minusMinutes(long min_val);

Parameter(s):

參數：

• long min_val – represents the minutes to be subtracted from this LocalDateTime.

  long min_val –表示要從此LocalDateTime中減去的分鐘。

Return value:

返回值：

The return type of this method is LocalDateTime, it returns the LocalDateTime that holds the value subtracted the given minutes from this LocalDateTime.

此方法的返回類型為LocalDateTime ，它返回LocalDateTime，該LocalDateTime保留從此LocalDateTime中減去給定分鐘數的值。

Example:

例：

// Java program to demonstrate the example // of minusMinutes(long min_val) method // of LocalDateTimeimport java.time.*;public class MinusMinutesOfLocalDateTime {public static void main(String args[]) {long minutes = 5;// Instantiates two LocalDateTimeLocalDateTime da_ti1 = LocalDateTime.parse("2005-10-05T10:10:10.00");LocalDateTime da_ti2 = LocalDateTime.now();// Display da_ti1, da_ti2 and// minutesSystem.out.println("LocalDateTime da_ti1 and da_ti2: ");System.out.println("da_ti1: " + da_ti1);System.out.println("da_ti2: " + da_ti2);System.out.println("minutes to subtract: " + minutes);System.out.println();// Here, this method subtracts the given// minutes from this date-time object // i.e. here we are subracting 5 minutes // from this object da_ti1LocalDateTime minus_min = da_ti1.minusMinutes(minutes);// Display minus_minSystem.out.print("da_ti1.minusMinutes(minutes): ");System.out.println(minus_min);// Here, this method subtracts the given// minutes from this date-time object // i.e. here we are subracting 5 minutes// from this object da_ti2minus_min = da_ti2.minusMinutes(minutes);// Display minus_minSystem.out.print("da_ti2.minusMinutes(minutes): ");System.out.println(minus_min);} }

Output

輸出量

LocalDateTime da_ti1 and da_ti2: da_ti1: 2005-10-05T10:10:10 da_ti2: 2020-06-07T16:10:15.112967 minutes to subtract: 5da_ti1.minusMinutes(minutes): 2005-10-05T10:05:10 da_ti2.minusMinutes(minutes): 2020-06-07T16:05:15.112967

翻譯自: https://www.includehelp.com/java/localdatetime-minusminutes-method-with-example.aspx

java 根據類名示例化類

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