问写入文件路径(包含该文件的文件夹的路径)

EN

//--------------------------   To create Node and their respective Files   ------------------------------------------------------
        for(int j=0;j<alpha.length;j++){                    //alpha is a String array which contains {"A","B","C","D"}
            node_directory=Node.concat(alpha[j]);           // nodde_directory is "C:\Users\Desktop\Node. I concat A,B,C and D to create different directories.
            File dir = new File(node_directory);
        if(!dir.exists()){
            dir.mkdirs();
       }
        System.out.println("Path: \n" +dir.getAbsolutePath());
        System.out.println();

        List<String> fileList = Arrays.asList(files);       // files is an array of string containing "mapping" and "data".
        Iterator <String> iter = fileList.iterator();       //I traverse through the list.
        while(iter.hasNext()){
            File next_file = new File(node_directory+"\\"+iter.next()+".txt");  //while traversing, I append the current "iter.next" to "node_directory" and append ".txt" to create files.
            System.out.println("The Files are: \n" +next_file);
            System.out.println();

            // I created the Directories, mapping and data Files for each directory. 

            /*I am stuck here, as it is not writing the path in the mapping File */

            if(iter.next()=="mapping"){         // I check if iter.next is mapping, so that i can write in the mapping file, the path of Folder containing mapping file. 
                BufferedWriter br = new BufferedWriter(new FileWriter(next_file));
                br.write(next_file.getAbsolutePath());
            }


    if(!next_file.exists()){
                System.out.println(next_file.createNewFile());
         }

next_file = new File(node_directory+"\\"+iter.next()+".txt"); // This line creates files by appending the required data. Since iter.next() returns all the Files in one go, 

BufferedWriter br = new BufferedWriter(new FileWriter(next_file));
                br.write(dir.getAbsolutePath());