Java 中的年月月月()方法，示例

原文:https://www . geesforgeks . org/year month-MINUS months-method-in-Java-with-examples/

Java 中 YearMonth 类的 minusMonths() 方法用来返回这个 YearMonth 减去指定月数的副本。 语法:

public YearMonth minusMonths(
        long monthsToSubtract)

参数:此方法接受月到子轨迹作为代表要减去的月份的参数。可能是负面的。 返回值:根据这个年-月减去月份，返回年-月。 异常:如果结果超出支持范围，该方法抛出 DateTimeException 。 下面的程序说明了 Java 中 YearMonth 的 MINUS()方法: 程序 1:

Java 语言(一种计算机语言，尤用于创建网站)

// Java program to demonstrate
// YearMonth.minusMonths() method

import java.time.*;
import java.time.temporal.*;

public class GFG {
    public static void main(String[] args)
    {
        // create YearMonth object
        YearMonth yearmonth
            = YearMonth.parse("2020-05");
        // It is May 2020

        // apply minusMonths() method
        // of YearMonth class
        YearMonth result
            = yearmonth.minusMonths(2);
        // It subtracts 2 months from May 2020
        // So it will be March 2020

        // print year and month both
        System.out.println("Modified YearMonth: "
                           + result);
    }
}

Output: 

Modified YearMonth: 2020-03

节目 2:

Java 语言(一种计算机语言，尤用于创建网站)

// Java program to demonstrate
// YearMonth.minusMonths() method

import java.time.*;
import java.time.temporal.*;

public class GFG {
    public static void main(String[] args)
    {
        // create YearMonth object
        YearMonth yearmonth
            = YearMonth.parse("2019-10");

        // apply minusMonths() method
        // of YearMonth class
        YearMonth result
            = yearmonth.minusMonths(10);
        // Subtracting 10 months will turn it into
        // December of 2018 (previous year)

        // print year and month both
        System.out.println(
            "Modified YearMonth: "
            + result);
    }
}

Output: 

Modified YearMonth: 2018-12

参考文献:https://docs . Oracle . com/javase/10/docs/API/Java/time/year month . html # MINUS months(长)

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