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                            ## 判斷是否是文件還是文件夾

~~~
File f1 = new File("./1.txt");
File f2 = new File("./no.txt"); //該文件不存在
System.out.println(f1.isFile());
System.out.println(f1.isDirectory());
System.out.println(f2.isFile());
System.out.println(f2.isDirectory());

System.out.println(f2.exists()); //判斷文件或者文件夾是否存在
~~~
```
true
false
false
false
false
```

                    
                
        
                
            
        
                
    
                
    
                
        
                
    
                

                







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