Java 中的 OffsetDateTime compareTo()方法，带示例

原文:https://www . geesforgeks . org/offsetdatetime-compare to-method-in-Java-with-examples/

Java 中 OffsetDateTime 类的 compareTo() 方法将这个日期时间与另一个日期时间进行比较。 语法:

public int compareTo(OffsetDateTime other)

参数:该方法接受单个参数其他，指定要比较的其他日期时间，不为空。 返回值:返回比较值，少则负，多则正。 以下程序说明了比较()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 the compareTo() method

import java.time.OffsetDateTime;
import java.time.ZonedDateTime;

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

        // Parses the date1
        OffsetDateTime date1 = OffsetDateTime.parse("2018-12-12T13:30:30+05:00");

        // Parses the date2
        OffsetDateTime date2 = OffsetDateTime.parse("2018-12-12T13:30:30+05:00");

        // Prints both dates
        System.out.println("Date1: " + date1);
        System.out.println("Date2: " + date2);

        // Compare both
        System.out.println("On comparing we get " + date1.compareTo(date2));
    }
}

Output

Date1: 2018-12-12T13:30:30+05:00
Date2: 2018-12-12T13:30:30+05:00
On comparing we get 0

程序 2 :

Java 语言(一种计算机语言，尤用于创建网站)

// Java program to demonstrate the compareTo() method
import java.time.OffsetDateTime;
import java.time.ZonedDateTime;

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

        // Parses the date1
        OffsetDateTime date1 = OffsetDateTime.parse("2018-12-12T13:30:30+05:00");

        // Parses the date2
        OffsetDateTime date2 = OffsetDateTime.parse("2015-12-12T13:30:30+05:00");

        // Prints both dates
        System.out.println("Date1: " + date1);
        System.out.println("Date2: " + date2);

        // Compare both
        System.out.println("On comparing we get " + date1.compareTo(date2));
    }
}

Output

Date1: 2018-12-12T13:30:30+05:00
Date2: 2015-12-12T13:30:30+05:00
On comparing we get 3

程序 3 :

Java 语言(一种计算机语言，尤用于创建网站)

// Java program to demonstrate the compareTo() method
import java.time.OffsetDateTime;
import java.time.ZonedDateTime;

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

        // Parses the date1
        OffsetDateTime date1 = OffsetDateTime.parse("2013-12-12T13:30:30+05:00");

        // Parses the date2
        OffsetDateTime date2 = OffsetDateTime.parse("2015-12-12T13:30:30+05:00");

        // Prints both dates
        System.out.println("Date1: " + date1);
        System.out.println("Date2: " + date2);

        // Compare both
        System.out.println("On comparing we get " + date1.compareTo(date2));
    }
}

Output

Date1: 2013-12-12T13:30:30+05:00
Date2: 2015-12-12T13:30:30+05:00
On comparing we get -2

参考:https://docs . Oracle . com/javase/8/docs/API/Java/time/temporal adjuster . html

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