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Java Program to remove path information from a filename returning only its file component
The method fileCompinent() is used to remove the path information from a filename and return only its file component. This method requires a single parameter i.e. the file name and it returns the file component only of the file name.
A program that demonstrates this is given as follows −
Example
import java.io.File;
public class Demo {
public static String fileComponent(String fname) {
int pos = fname.lastIndexOf(File.separator);
if(pos > -1)
return fname.substring(pos + 1);
else
return fname;
}
public static void main(String[] args) {
System.out.println(fileComponent("c:\JavaProgram\demo1.txt"));
}
}The output of the above program is as follows −
Output
demo1.txt
Now let us understand the above program.
The method fileComponent() is used to remove the path information from a filename and return only its file component. A code snippet that demonstrates this is given as follows −
public static String fileComponent(String fname) {
int pos = fname.lastIndexOf(File.separator);
if(pos > -1)
return fname.substring(pos + 1);
else
return fname;
}The method main() prints the file component of the file name that was returned by the method fileComponent(). A code snippet that demonstrates this is given as follows −
public static void main(String[] args) {
System.out.println(fileComponent("c:\JavaProgram\demo1.txt"));
}
Updated on: 30-Jul-2019
1K+ Views
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