Java 中的 Instant equals()方法，示例
原文:https://www . geesforgeks . org/instant-equals-method-in-Java-with-examples/
即时类的等于(对象其他即时)方法用于将此即时与作为参数传递的即时对象进行比较。两个实例之间的比较是基于时刻的时间线位置。该方法返回的值确定如下:
- Returns true if two instances are equal.
- If the two instances are not equal, false is returned.
语法:
public boolean equals(Object otherInstant)
参数:该方法接受一个强制参数 otherInstant ，即需要比较的另一个时刻，不应该为空。
返回值:该方法返回一个布尔值，如下所示:
- 真:如果两个实例相等。
- false :如果两个实例不相等。
下面的程序说明了 Instant.equals()方法:
程序 1: 当两个实例相等时
// Java program to demonstrate
// Instant.equals() method
import java.time.*;
public class GFG {
public static void main(String[] args)
{
// create two instance objects
Instant instant1
= Instant.parse("2018-10-20T16:55:30.00Z");
Instant instant2
= Instant.parse("2018-10-20T16:55:30.00Z");
// print Instant Values
System.out.println("Instant1: "
+ instant1);
System.out.println("Instant2: "
+ instant2);
// compare both instant
boolean value = instant1.equals(instant2);
// print results
System.out.println("Are both instants are equal: "
+ value);
}
}
输出:
Instant1: 2018-10-20T16:55:30Z
Instant2: 2018-10-20T16:55:30Z
Are both instants are equal: true
程序 2: 当两个实例不相等时
// Java program to demonstrate
// Instant.equals() method
import java.time.*;
public class GFG {
public static void main(String[] args)
{
// create two instance objects
Instant instant1
= Instant.parse("2018-10-20T16:55:30.00Z");
Instant instant2
= Instant.parse("2011-10-20T16:55:30.00Z");
// print Instant Values
System.out.println("Instant1: "
+ instant1);
System.out.println("Instant2: "
+ instant2);
// compare both instant
boolean value = instant1.equals(instant2);
// print results
System.out.println("Are both instants are equal: "
+ value);
}
}
输出:
Instant1: 2018-10-20T16:55:30Z
Instant2: 2011-10-20T16:55:30Z
Are both instants are equal: false
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