Java中的持续时间减(持续时间)方法与示例
Java.time 包中Duration 类的minus(Duration)方法用于获取该持续时间的不可变副本,减去指定的持续时间,作为参数传递。
句法:
public Duration minus(Duration duration)
参数:此方法接受参数持续时间,该参数是要减去的持续时间。它可以是正数或负数,但不能为空。
返回值:此方法返回一个持续时间,它是现有持续时间的不可变副本,其中减去了持续时间的参数量。
异常:如果发生数字溢出,此方法将引发ArithmeticException 。
下面的示例说明了 Duration.minus() 方法:
示例 1:
Java
// Java code to illustrate minus() method
import java.time.Duration;
public class GFG {
public static void main(String[] args)
{
// Duration 1 using parse() method
Duration duration1
= Duration.parse("P2DT3H4M");
// Duration 2 using ofHours() method
Duration duration2
= Duration.ofHours(5);
// Get the duration subtracted
// using minus() method
System.out.println(duration1
.minus(duration2));
}
}
Java
// Java code to illustrate minus() method
import java.time.Duration;
public class GFG {
public static void main(String[] args)
{
// Duration 1 using parse() method
Duration duration1
= Duration.parse("P0DT0H4M");
// Duration 2 using ofHours() method
Duration duration2
= Duration.ofDays(5);
// Get the duration subtracted
// using minus() method
System.out.println(duration1
.minus(duration2));
}
}
输出:
PT46H4M
示例 2:
Java
// Java code to illustrate minus() method
import java.time.Duration;
public class GFG {
public static void main(String[] args)
{
// Duration 1 using parse() method
Duration duration1
= Duration.parse("P0DT0H4M");
// Duration 2 using ofHours() method
Duration duration2
= Duration.ofDays(5);
// Get the duration subtracted
// using minus() method
System.out.println(duration1
.minus(duration2));
}
}
输出:
PT-119H-56M
参考: https://docs.oracle.com/javase/9/docs/api/ Java/time/Duration.html#minus-java.time.Duration-