Java 中的 LocalTime plusHours()方法，带示例
原文:https://www . geesforgeks . org/local time-plushours-method-in-Java-with-examples/
本地时间类的 plusHours() 方法用于将指定的小时数值添加到该本地时间，并将结果作为本地时间对象返回。这一瞬间是不可改变的。计算大约在午夜进行。
语法:
public LocalTime plusHours(long hoursToAdd)
参数:此方法接受单个参数小时添加，即要添加的小时值，可以是负值。
返回值:该方法返回一个本地时间基于该时间加上小时。
下面的程序说明了 plusHours()方法:
程序 1:
// Java program to demonstrate
// LocalTime.plusHours() method
import java.time.*;
public class GFG {
public static void main(String[] args)
{
// create a LocalTime object
LocalTime time
= LocalTime.parse("19:34:50.63");
// print LocalTime
System.out.println("LocalTime before addition : "
+ time);
// added 3 hours using plusHours()
LocalTime value = time.plusHours(3);
// print result
System.out.println("LocalTime after addition : "
+ value);
}
}
输出:
LocalTime before addition : 19:34:50.630
LocalTime after addition : 22:34:50.630
程序二:
// Java program to demonstrate
// LocalTime.plusHours() method
import java.time.*;
public class GFG {
public static void main(String[] args)
{
// create a LocalTime object
LocalTime time
= LocalTime.parse("01:00:01");
// print LocalTime
System.out.println("LocalTime before addition : "
+ time);
// added -10 hours using plusHours()
LocalTime value = time.plusHours(-10);
// print result
System.out.println("LocalTime after addition : "
+ value);
}
}
输出:
LocalTime before addition : 01:00:01
LocalTime after addition : 15:00:01
参考文献:https://docs . Oracle . com/javase/10/docs/API/Java/time/local time . html # plusHours(长)
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