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                            ### 為什么使用包裝類
```
1. 使用基本類型在于效率，然而很多情況，會創建對象使用, 因為對象可以做更多的功能
2. 如果想要我們的基本類型像對象一樣操作，就可以使用基本類型對應的包裝類
```
| 基本類型    | 對應的包裝類（位于java.lang包中） |
| ------- | --------------------- |
| byte    | Byte                  |
| short   | Short                 |
| int     | Integer           |
| long    | Long                  |
| float   | Float                 |
| double  | Double                |
| char    | Character        |
| boolean | Boolean               |
                    
                
        
                
            
        
                
    
                
    
                
        
                
    
                

                







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