Java 中的 JapaneseDate hashCode()方法，示例
原文:https://www . geesforgeks . org/japanesedate-hashcode-method-in-Java-with-example/
Java . time . chrono . japanesedate类的 hashCode() 方法用于获取特定日本日期的 hash 代码。
语法:
public int hashCode()
参数:该方法不接受任何参数作为参数。
返回值:该方法返回特定日本日期的哈希代码。
下面是举例说明 hashCode() 方法的例子:
例 1:
// Java program to demonstrate
// hashCode() method
import java.util.*;
import java.io.*;
import java.time.*;
import java.time.chrono.*;
import java.time.temporal.*;
public class GFG {
public static void main(String[] argv)
{
try {
// creating and initializing
// JapaneseDate Object
JapaneseDate hidate = JapaneseDate.now();
// getting hash code of the date
// by using hashCode() method
long tempo = hidate.hashCode();
// display the result
System.out.println("hashcode : "
+ tempo);
}
catch (DateTimeException e) {
System.out.println("passed parameter can"
+ " not form a date");
System.out.println("Exception thrown: "
+ e);
}
}
}
输出:
hashcode : -691830052
例 2:
// Java program to demonstrate
// hashCode() method
import java.util.*;
import java.io.*;
import java.time.*;
import java.time.chrono.*;
import java.time.temporal.*;
public class GFG {
public static void main(String[] argv)
{
try {
// creating and initializing
// JapaneseDate Object
JapaneseDate hidate
= JapaneseDate.of(2003, 06, 13);
// getting hash code of the date
// by using hashCode() method
long tempo = hidate.hashCode();
// display the result
System.out.println("hashcode : "
+ tempo);
}
catch (DateTimeException e) {
System.out.println("passed parameter can"
+ " not form a date");
System.out.println("Exception thrown: "
+ e);
}
}
}
输出:
hashcode : -691914148
参考:https://docs . Oracle . com/javase/9/docs/API/Java/time/chrono/japanesedate . html # hashCode–
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