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Java implementation of obtaining file type and extension

Feb 27, 2017 pm 04:09 PM

Java获取文件的类型和扩展名

实现代码:

File file=new File("E:\\aa.jpg"); 
String fileName=file.getName();    
String fileTyle=fileName.substring(fileName.lastIndexOf("."),fileName.length()); 
System.out.println(fileTyle);
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程序运行效果图:

Java implementation of obtaining file type and extension

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