Java中的MonthDay compareTo()方法
可以使用compareTo()Java中MonthDay类中的方法比较两个MonthDay对象。此方法需要单个参数，即要比较的MonthDay对象。
如果第一个MonthDay对象大于第二个MonthDay对象，则返回正数；如果第一个MonthDay对象小于第二个MonthDay对象，则返回负数；如果两个MonthDay对象相等，则返回零。
演示此的程序如下
示例
import java.time.*;
public class Main {
public static void main(String[] args) {
MonthDay md1 = MonthDay.parse("--02-22");
MonthDay md2 = MonthDay.parse("--05-15");
System.out.println("The first MonthDay object is: " + md1);
System.out.println("The second MonthDay object is: " + md2);
int val = md1.compareTo(md2);
if(val > 0)
System.out.println("\nThe first MonthDay object is greater than the second MonthDay object");
else if(val < 0)
System.out.println("\nThe first MonthDay object is lesser than the second MonthDay object");
else
System.out.println("\nThe MonthDay objects are equal");
}
}输出结果
The first MonthDay object is: --02-22 The second MonthDay object is: --05-15 The first MonthDay object is lesser than the second MonthDay object
现在让我们了解上面的程序。
首先显示两个MonthDay对象。然后使用compareTo()方法比较它们，并使用ifelse语句显示结果。演示此代码段如下所示：
MonthDay md1 = MonthDay.parse("--02-22");
MonthDay md2 = MonthDay.parse("--05-15");
System.out.println("The first MonthDay object is: " + md1);
System.out.println("The second MonthDay object is: " + md2);
int val = md1.compareTo(md2);
if(val > 0)
System.out.println("\nThe first MonthDay object is greater than the second MonthDay object");
else if(val < 0)
System.out.println("\nThe first MonthDay object is lesser than the second MonthDay object");
else
System.out.println("\nThe MonthDay objects are equal");