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Java Program to strip a filename of its extension after the last dot
The method removeExtension() is used to strip a filename of its extension after the last dot. This method requires a single parameter i.e. the file name and it returns the file name without its extension.
A program that demonstrates this is given as follows −
Example
import java.io.File;
public class Demo {
public static String removeExtension(String fname) {
int pos = fname.lastIndexOf('.');
if(pos > -1)
return fname.substring(0, pos);
else
return fname;
}
public static void main(String[] args) {
System.out.println(removeExtension("c:\JavaProgram\demo1.txt"));
}
}The output of the above program is as follows −
Output
c:\JavaProgram\demo1
Now let us understand the above program.
The method removeExtension() is used to strip a filename of its extension after the last dot. A code snippet that demonstrates this is given as follows −
public static String removeExtension(String fname) {
int pos = fname.lastIndexOf('.');
if(pos > -1)
return fname.substring(0, pos);
else
return fname;
}The method main() prints the file name without the extension that was returned by the method removeExtension(). A code snippet that demonstrates this is given as follows −
public static void main(String[] args) {
System.out.println(removeExtension("c:\JavaProgram\demo1.txt"));
}
Updated on: 30-Jul-2019
2K+ Views
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