java.time.Instant.isBefore(Instant otherInstant)
方法檢查此瞬間是否在指定的時刻之前。
以下是java.time.Instant.isBefore(Instant otherInstant)
方法的宣告。
public boolean isBefore(Instant otherInstant)
otherInstant
- 比較的另一個瞬間,而不是null。如果此時刻在指定時刻之前,則為true
。
NullPointerException
- 如果otherInstant為null。以下範例顯示了java.time.Instant.isBefore(Instant otherInstant)
方法的用法。
package com.yiibai;
import java.time.Instant;
public class InstantDemo {
public static void main(String[] args) {
Instant instant = Instant.parse("2017-02-03T10:37:30.00Z");
System.out.println("Instant #1: " + instant);
Instant instant1 = Instant.parse("2017-03-03T10:37:30.00Z");
System.out.println("Instant #2: " + instant1);
boolean result = instant.isBefore(instant1);
System.out.println(result ? "Instant #1 is before Instant #2."
:"Instant #1 is not before as Instant #2.");
}
}
編譯並執行上面的程式,這將產生以下結果 -
Instant #1: 2017-02-03T10:37:30Z
Instant #2: 2017-03-03T10:37:30Z
Instant #1 is before Instant #2.