LocalDate compareTo()方法
可以使用JavaLocalDate类中的compareTo()方法比较两个LocalDate对象。此方法需要单个参数，即要比较的LocalDate对象。
如果第一个LocalDate对象大于第二个LocalDate对象，则返回正数；如果第一个LocalDate对象小于第二个LocalDate对象，则返回负数；如果两个LocalDate对象相等，则返回零。
演示此的程序如下所示-
示例
import java.time.*;
public class Main {
public static void main(String[] args) {
LocalDate ld1 = LocalDate.parse("2019-02-15");
LocalDate ld2 = LocalDate.parse("2019-02-12");
System.out.println("The first LocalDate object is: " + ld1);
System.out.println("The second LocalDate object is: " + ld2);
int val = ld1.compareTo(ld2);
if(val > 0)
System.out.println("\nThe first LocalDate object is greater than the second LocalDate object");
else if(val < 0)
System.out.println("\nThe first LocalDate object is lesser than the second LocalDate object");
else
System.out.println("\nThe LocalDate objects are equal");
}
}输出结果
The first LocalDate object is: 2019-02-15 The second LocalDate object is: 2019-02-12 The first LocalDate object is greater than the second LocalDate object
现在让我们了解上面的程序。
首先，显示两个LocalDate对象。然后使用compareTo()方法对它们进行比较，并使用ifelse语句显示结果。演示这的代码片段如下-
LocalDate ld1 = LocalDate.parse("2019-02-15");
LocalDate ld2 = LocalDate.parse("2019-02-12");
System.out.println("The first LocalDate object is: " + ld1);
System.out.println("The second LocalDate object is: " + ld2);
int val = ld1.compareTo(ld2);
if(val > 0)
System.out.println("\nThe first LocalDate object is greater than the second LocalDate object");
else if(val < 0)
System.out.println("\nThe first LocalDate object is lesser than the second LocalDate object");
else
System.out.println("\nThe LocalDate objects are equal");