Please I need help right away This method creates and ret

Please I need help right away!

/**
     *

     * This method creates and returns a new array that contains a list of the
     * unique File objects that occur in the files array. For this method,
     * File objects are the same if they are equal using the .equals method.
     * (The returned array is the set of file objects.)
     *

     *
     *

     * The size of the returned list is determined by the number of unique
     * items in the original list. The order of the items in the returned
     * list is unspecified.
     *

     * do not use library classes to manipulate or search through arrays, or to build a set of objects.
     *

     * The files array must not contain null.
     *

     *
     *
     *

(Hint: This problem also has two major steps. Solve them one at a time,
     * and don\'t try to mix the code between the two steps. (Keep the ideas
     * and code steps separate as much as you can.) Additionally, the
     * code for each step is very similar.

     *
     *

(Warning: You cannot use Java collections, or any other built-in
     * class that helps build sets. Figure out your own way to see if the array
     * has duplicates in it.)

     *
     * @param files   An array of File objects, possibly containing duplicates
     * @return   An array of unique File objects
     * @throws NullPointerException   If files is null or files contains null

public static File[] getUniqueSet (File[] files)
    {

}

Solution

//Please check , Just modify class and package name as per your class name .

package prjctreturnuniquearrayfile;

import java.io.File;

public class PrjctReturnUniqueArrayFile {

public static void main(String[] args) {

// create object
PrjctReturnUniqueArrayFile obj = new PrjctReturnUniqueArrayFile();
// array of original file with duplicate file
File[] arrFiles = obj.getListOfFileArray();
// get unique file from original file
File[] Uniquearrayfile = obj.getUniqueArrayFile(arrFiles);
//Display all unique file for checking or testing
obj.DisplayUniqueFileFromArray(Uniquearrayfile);

}

public File[] getListOfFileArray() {

File file1 = new File(\"file1\");
File file2 = new File(\"file2\");
File file3 = new File(\"file3\");
File file4 = new File(\"file4\");
File file5 = new File(\"file5\");
//file1 and file2 repeated
File[] files = new File[]{file1, file2, file3, file4, file5, file1, file2};
return files;
}
//return an array of unique File objects

public File[] getUniqueArrayFile(File[] files) {

//throws NullPointerException If files array is null
if (files == null) {
throw new NullPointerException(\"File is null\");
}
// store Unique file in array to return
File[] arrNewFile = new File[files.length];

for (int i = 0; i < files.length - 1; i++) {

for (int x = 0; x < files.length - 1; x++) {
if (files[i].equals(files[x]) && (i != x)) {
//Duplicate file
break;
}

if (i == x) {
arrNewFile[i] = files[i];
}

}

}

return arrNewFile;
}

public void DisplayUniqueFileFromArray(File[] files) {
for (int i = 0; i < files.length; i++) {
if (files[i] != null) {
System.out.println(files[i].getName());
}
}

}
}