Java SimpleDateFormat hashCode()用法及代码示例

SimpleDateFormat类的hashCode()方法用于返回此SimpleDateFormat对象的哈希码值。哈希码是整数类型。

用法:

public int hashCode()

参数：该方法不带任何参数。

返回值：该方法返回此SimpleDateFormat对象的哈希码值，并且为整数类型。

以下示例程序旨在说明SimpleDateFormat的hashCode()方法的用法：

示例1:

// Java to illustrate hashCode() method 
  
import java.text.*; 
import java.util.*; 
  
public class SimpleDateFormat_Demo { 
    public static void main(String[] args) 
        throws InterruptedException 
    { 
        // Initializing SimpleDateFormat 
        SimpleDateFormat SDFormat 
            = new SimpleDateFormat( 
                "dd/MM/yyyy"); 
  
        // Displaying the formats 
        Date date = new Date(); 
        String str_Date1 = SDFormat.format(date); 
        System.out.println("The Original: "
                           + (str_Date1)); 
  
        // Displaying the hash code 
        System.out.println("The hash code: "
                           + SDFormat.hashCode()); 
    } 
}

输出：

The Original: 30/01/2019
The hash code: -650712384

示例2:

// Java to illustrate hashCode() method 
  
import java.text.*; 
import java.util.*; 
  
public class SimpleDateFormat_Demo { 
    public static void main(String[] args) 
        throws InterruptedException 
    { 
        // Initializing SimpleDateFormat 
        SimpleDateFormat SDFormat 
            = new SimpleDateFormat( 
                "MM/dd/yyyy"); 
  
        // Displaying the formats 
        Date date = new Date(); 
        String str_Date1 = SDFormat.format(date); 
        System.out.println("The Original: "
                           + (str_Date1)); 
  
        // Displaying the hash code 
        System.out.println("The hash code: "
                           + SDFormat.hashCode()); 
    } 
}

输出：

The Original: 01/30/2019
The hash code: 2087096576

相关用法

注：本文由纯净天空筛选整理自Chinmoy Lenka大神的英文原创作品 SimpleDateFormat hashCode() Method in Java with Examples。非经特殊声明，原始代码版权归原作者所有，本译文未经允许或授权，请勿转载或复制。