Java 中的 LocalTime compareTo()方法，带示例
原文:https://www . geesforgeks . org/local time-compare to-method-in-Java-with-examples/
LocalTime 类的 compareTo() 方法用于将这个 LocalTime 对象与作为参数传递的 LocalTime 进行比较，以检查两个 LocalTime 是否相等。两个本地时间之间的比较基于一天内本地时间的时间线位置。该方法返回的值确定如下:
- If the LocalTime is greater than the LocalTime passed as a parameter, a positive value is returned.
- If the LocalTime is equal to the LocalTime passed as a parameter, it returns zero (0)
- If the LocalTime is less than the LocalTime passed as a parameter, a negative value is returned.
语法:
public int compareTo(LocalTime other)
参数:该方法接受单个参数 LocalTime ，即要比较的另一个 LocalTime，不应该为空。
返回值:该方法返回整数值，返回值确定如下:
- 如果此 LocalTime 大于作为参数传递的 LocalTime，则返回正值
- 如果这个本地时间等于作为参数传递的本地时间，则返回零(0)
- 如果此本地时间小于作为参数传递的本地时间，则返回负值。
下面的程序说明了 compareTo()方法:
程序 1: 当该本地时间大于
// Java program to demonstrate
// LocalTime.compareTo() method
import java.time.*;
public class GFG {
public static void main(String[] args)
{
// create a LocalTime Objects
LocalTime time1
= LocalTime.parse("17:52:49");
LocalTime time2
= LocalTime.parse("13:08:00");
// apply compareTo()
int value = time1.compareTo(time2);
// print LocalDateTime
System.out.println("Int Value:" + value);
if (value > 0)
System.out.println("LocalTime1 is greater");
else if (value == 0)
System.out.println("LocalTime1 is equal to"
+ " LocalTime2");
else
System.out.println("LocalTime2 is greater");
}
}
时，输出:
Int Value:1
LocalTime1 is greater
程序 2: 通过时本地时间大于
// Java program to demonstrate
// LocalTime.compareTo() method
import java.time.*;
public class GFG {
public static void main(String[] args)
{
// create a LocalTime Objects
LocalTime time1
= LocalTime.parse("07:12:29");
LocalTime time2
= LocalTime.parse("13:08:00");
// apply compareTo()
int value = time1.compareTo(time2);
// print LocalDateTime
System.out.println("Int Value:" + value);
if (value > 0)
System.out.println("LocalTime1 is greater");
else if (value == 0)
System.out.println("LocalTime1 is equal to"
+ " LocalTime2");
else
System.out.println("LocalTime2 is greater");
}
}
输出:
Int Value:-1
LocalTime2 is greater
程序 3: 当两个本地时间相等时
// Java program to demonstrate
// LocalTime.compareTo() method
import java.time.*;
public class GFG {
public static void main(String[] args)
{
// create a LocalTime Objects
LocalTime time1
= LocalTime.parse("13:08:00");
LocalTime time2
= LocalTime.parse("13:08:00");
// apply compareTo()
int value = time1.compareTo(time2);
// print LocalDateTime
System.out.println("Int Value:" + value);
if (value > 0)
System.out.println("LocalTime1 is greater");
else if (value == 0)
System.out.println("LocalTime1 is equal to"
+ " LocalTime2");
else
System.out.println("LocalTime2 is greater");
}
}
输出:
Int Value:0
LocalTime1 is equal to LocalTime2
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