Description: A) preparation of a graphical gadgets, functionally similar system tools dir, given by the user can view the file creation time, file type, file size, and other information. Tip: creation time, file size and other information can be obtained directly through the file type, file type, methods need to write judgments, accept user input file name, the interception of the suffix, according to its extension to determine the file type. For example suffix. Java is a Java source file, the suffix of. Txt is a text file. Note improve program fault tolerance (input format diversity and uncertainty).
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q5_1.java
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