Java SimpleDateFormat hashCode()用法及代碼示例

SimpleDateFormat類的hashCode()方法用於返回此SimpleDateFormat對象的哈希碼值。哈希碼是整數類型。

用法:

public int hashCode()

參數：該方法不帶任何參數。

返回值：該方法返回此SimpleDateFormat對象的哈希碼值，並且為整數類型。

以下示例程序旨在說明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()); 
    } 
}

輸出：

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()); 
    } 
}

輸出：

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

相關用法

注：本文由純淨天空篩選整理自Chinmoy Lenka大神的英文原創作品 SimpleDateFormat hashCode() Method in Java with Examples。非經特殊聲明，原始代碼版權歸原作者所有，本譯文未經允許或授權，請勿轉載或複製。