In this program you will learn how to display the file extension of the file. Here you will be asked to enter the file name and then you will get the extension of the file.
Description of the code:
In the program code given below, you will be asked to enter the file name first as can be observed from the method of java.io.*; package which is BufferedReader();. The compiler will read the file name once you enter it through readLine(); method. Then we have declared the local variables here filename and extension. Now, to find the position of the last dot we have used a method lastIndexOf(); to get the extension. At the last we have applied show(); method to get the extension.
The code of the program is given below:
Output of the program:
Enter the file name:
Extension is .txt
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