Java教程

Java Calendar hashCode()方法

java的hasgCode()方法是对象类的方法,而对象类是java中所有类的最终超类。 hashCode()方法被Java中的所有其他类重载。此方法返回日历对象的哈希码。

语法

public int hashCode()

参数

未传递任何参数。

返回

日历对象的哈希码值。

抛出

不抛出异常。

示例1

import java.util.*;
public class JavaCalendarhashCodeExample1 {
    public static void main(String[] args) {
        // create a calendar
      Calendar mycal = Calendar.getInstance();
        // display current calendar
      System.out.println("The current time: " + mycal.getTime());
        // get the hash code and print it
      int i = mycal.hashCode();
        System.out.println(" Hash Code " + i);
    }
}
输出:
The current time: Fri Aug 10 11:38:27 PDT 2018
 Hash Code 999473001

示例2

import java.util.*;
public class JavaCalendarhashCodeExample2 {
    public static void main(String[] args) {
        // create a new calendar
      GregorianCalendar mycal = (GregorianCalendar) GregorianCalendar.getInstance();
        // print the current date and time
      System.out.println(" current Time : " + mycal.getTime());
        // print a hashcode for this calendar
      System.out.println("Hash Code:" + mycal.hashCode());
    }
}
输出:
current Time : Fri Aug 10 11:48:02 PDT 2018
Hash Code:999946776
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