Delete all files in directory (but not directory) - one liner solution

Question

I want to delete all files inside ABC directory.

When I tried with FileUtils.deleteDirectory(new File(\"C:/test/ABC/\")); it also deletes folder ABC.

Answer 1

public class DeleteFile {
    public static void main(String[] args) {
        String path="D:\test"; 
        File file = new File(path);
        File[] files = file.listFiles(); 
        for (File f:files) 
        {if (f.isFile() && f.exists) 
            { f.delete();
system.out.println("successfully deleted");
            }else{
system.out.println("cant delete a file due to open or error");
} }  }}