Java YearMonth compareTo()方法

Java中YearMonth类的compareTo()方法是用来比较两个YearMonth对象。它将这个YearMonth对象与作为参数传递给它的YearMonth对象进行比较。两个YearMonth实例之间的比较首先是根据Year的值进行的，然后是根据Month的值。

语法:

public int compareTo(YearMonth otherYearMonth)

参数：该方法接受一个单一的参数 otherYearMonth ，它是要和这个YearMonth进行比较的另一个YearMonth实例。

返回值 : 它返回一个基于比较的积分比较器值。

如果这个YearMonth比otherYearMonth大，则返回1。
如果这个YearMonth小于otherYearMonth，则返回-1。
如果这个YearMonth等于其他YearMonth，则返回0。

以下程序说明了Java中YearMonth的compareTo()方法。

程序1 :

// Program to illustrate the compareTo() method
 
import java.util.*;
import java.time.*;
 
public class GfG {
    public static void main(String[] args)
    {
 
        // Creates first YearMonth object
        YearMonth firstYearMonth = YearMonth.of(2017, 8);
 
        // Creates second YearMonth object
        YearMonth secondYearMonth = YearMonth.of(2016, 11);
 
        // compare the two YearMonth instances
        System.out.println(firstYearMonth.compareTo(secondYearMonth));
    }
}

输出

程序2 :

// Program to illustrate the compareTo() method
 
import java.util.*;
import java.time.*;
 
public class GfG {
    public static void main(String[] args)
    {
 
        // Creates first YearMonth object
        YearMonth firstYearMonth = YearMonth.of(2016, 11);
 
        // Creates second YearMonth object
        YearMonth secondYearMonth = YearMonth.of(2016, 11);
 
        // compare the two YearMonth instances
        System.out.println(firstYearMonth.compareTo(secondYearMonth));
    }
}

输出

参考资料 : https://docs.oracle.com/javase/8/docs/api/java/time/YearMonth.html#compareTo-java.time.YearMonth-