YearMonth isBefore()方法在 Java 中的示例

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

Java 中 Year 类的 isBefore() 方法用于检查当前的 YearMonth 对象是否在作为该方法参数指定的 YearMonth 之前。

语法 :

public boolean isBefore(Year otherYearMonth)

参数:接受单个参数 otherYearMonth ，与当前 YearMonth 对象进行比较。

返回值:如果这个 YearMonth 对象的值在作为方法参数指定的 YearMonth 对象的值之前，则返回一个布尔值 True 值，否则返回 False。

下面的程序说明了 Java 中的 YearMonth.isBefore()方法:

程序 1 :

// Program to illustrate the isBefore() method

import java.util.*;
import java.time.*;

public class GfG {
    public static void main(String[] args)
    {
        // Create first Year object
        YearMonth yearMonth1
            = YearMonth.of(2018, 3);

        // Create second Year object
        YearMonth yearMonth2
            = YearMonth.of(1997, 4);

        // Check if this year-month object's value is
        // before the specified Year-month or not
        System.out.println(yearMonth1
                               .isBefore(yearMonth2));
    }
}

输出:

false

程序二 :

// Program to illustrate the isBefore() method

import java.util.*;
import java.time.*;

public class GfG {
    public static void main(String[] args)
    {
        // Create first Year object
        YearMonth yearMonth1
            = YearMonth.of(1997, 3);

        // Create second Year object
        YearMonth yearMonth2
            = YearMonth.of(2018, 4);

        // Check if this year-month object's value is
        // before the specified Year-month or not
        System.out.println(yearMonth1
                               .isBefore(yearMonth2));
    }
}

输出:

true

参考:https://docs . Oracle . com/javase/8/docs/API/Java/time/year month . html # is before-Java . time . year month-

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