Java 中带月()方法的周期，示例

原文:https://www . geesforgeks . org/period-with months-method-in-Java-with-examples/

期间类的 withMonths() 方法用于获取指定月数的期间。这个月数作为整数值作为参数传递。

语法:

public Period withMonths(int numberOfMonths)

参数:此方法接受一个参数月数，即在此期间要更改的月数。

返回:该函数返回一个以月数为参数的周期。

下面是 Period.withMonths()方法的实现:

例 1:

// Java code to demonstrate withMonths() method

import java.time.Period;

class GFG {
    public static void main(String[] args)
    {

        // Get the String to be withMonthsd
        String period = "P1Y2M21D";

        // Parse the String into Period
        Period p = Period.parse(period);

        System.out.println("Period: " + p);

        // Get the number of months
        int numberOfMonths = 5;

        // Change the numberOfMonths of this Period
        // using withMonths() method
        System.out.println("New Period: "
                           + p.withMonths(numberOfMonths));
    }
}

输出:

Period: P1Y2M21D
New Period: P1Y5M21D

例 2:

// Java code to demonstrate withMonths() method

import java.time.Period;

class GFG {
    public static void main(String[] args)
    {

        // Get the String to be withMonthsd
        String period = "-P1Y2M21D";

        // Parse the String into Period
        Period p = Period.parse(period);

        System.out.println("Period: " + p);

        // Get the number of months
        int numberOfMonths = -5;

        // Change the numberOfMonths of this Period
        // using withMonths() method
        System.out.println("New Period: "
                           + p.withMonths(numberOfMonths));
    }
}

输出:

Period: P-1Y-2M-21D
New Period: P-1Y-5M-21D

参考:https://docs . Oracle . com/javase/9/docs/API/Java/time/period . html # with months-int-

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