Path problems

[Javier Giron]

Hi all!

Im preparing the OCP certification exam and i made this piece of code just to check how it works some of the elements i have to study.

package ocp;

import java.io.*;
import java.nio.file.*;
import java.nio.file.attribute.*;

public class Visitor extends SimpleFileVisitor<Path>{
	
	public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) throws IOException{
		
		System.out.println(file.getFileName());
		
		if (file.getFileName().endsWith(".txt")) {
			Files.delete(file);
		}
		
		return FileVisitResult.CONTINUE;
	}

	public static void main(String[] args) throws IOException{
		// TODO Auto-generated method stub
		Visitor dirs = new Visitor();
		
		Path path = Paths.get("C:/Users/Javier/workspace/OCP_3_2_Paths/Paths.txt");
		//Files.createFile(path);
		
		System.out.println(System.getProperty("user.dir"));
		
		System.out.println(path.getParent());
		System.out.println(path.getRoot());
		
		Files.walkFileTree(Paths.get("C:/Users/Javier/workspace/OCP_3_2_Paths"), dirs);
	}

}

When i execute the code it prints me the following names of the files i have in the path:

C:\Users\Javier\workspace\OCP_3_2_Paths
C:\Users\Javier\workspace\OCP_3_2_Paths
C:\
.classpath
.project
org.eclipse.jdt.core.prefs
File01.txt
File02
CreatingPaths.class
FileOCP01.txt
FileOCP02
Visitor.class
Eliminar.txt
Paths.txt
File01.txt
File02
CreatingPaths.java
FileOCP01.txt
FileOCP02
Visitor.java
temp

The problem is that the code should delete me the files what end in ".txt" but actually it doesnt do anything. When i reach

file.getFileName().endsWith(".txt")

with "File01.txt", for example, the if returns me a FALSE.

Can you help me, please? thank you in advance!

[Ahmed Bin S]

getFileName() returns a Path object, and not a String.

endsWith() works differently on a Path and String.

What you need to do is change the Path to a String and then call endsWith().

So your code should look like:

file.getFileName().toString().endsWith(".txt")

[Javier Giron]

ok, got it!! Thank you very much!!