Uncover the Secrets of File Names in Java
The Power of the getName() Method
One of the most straightforward ways to get a file name is by using the getName()
method of the File
class. This method returns the name of the file, stripping away the directory path.
File file = new File("C:\\Users\\username\\Documents\\example.txt");
String fileName = file.getName();
System.out.println(fileName); // Output: example.txt
String Manipulation: A Different Approach
But what if we want to get creative and use string methods to extract the file name? We can do just that! By converting the File
object to a string and using the lastIndexOf()
and substring()
methods, we can achieve the same result.
File file = new File("C:\\Users\\username\\Documents\\example.txt");
String stringFile = file.toString();
int index = stringFile.lastIndexOf('\\');
String fileName = stringFile.substring(index + 1);
System.out.println(fileName); // Output: example.txt
Mastering File Names in Java
As you can see, getting a file name from an absolute path in Java is a breeze. Whether you choose to use the getName()
method or string manipulation, the result is the same – a neat and tidy file name.
- Use the
getName()
method for a straightforward approach. - Employ string manipulation techniques for a more creative solution.
So, go ahead and practice these techniques to become a master of file names in Java!