Java 使用即时和持续时间类

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import java.time.Duration;

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import java.time.Instant;

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public class Main {/**来 自 n o w j a v a . c o m - 时代Java**/

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  public static void main(String[] args) {

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    Instant i1 = Instant.ofEpochSecond(20);

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    Instant i2 = Instant.ofEpochSecond(55);

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    System.out.println("i1:" + i1);

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    System.out.println("i2:" + i2);

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    Duration d1 = Duration.ofSeconds(55);

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    Duration d2 = Duration.ofSeconds(-17);

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    System.out.println("d1:" + d1);

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    System.out.println("d2:" + d2);

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    // Compare instants

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    System.out.println("i1.isBefore(i2):" + i1.isBefore(i2));

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    System.out.println("i1.isAfter(i2):" + i1.isAfter(i2));

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    // Add and subtract durations to instants//来自 n o w j a   v  a . c o m - 时  代  Java

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    Instant i3 = i1.plus(d1);

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    Instant i4 = i2.minus(d2);

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    System.out.println("i1.plus(d1):" + i3);

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