Odtnhj

import java.util.ArrayList;
import java.util.LinkedHashMap;
import java.util.Map;

This is the public class
public class Process 

 private String keywordAsString = "";
 private String keyword = "";

 // ArrayList to hold the letters of the keyword with duplicates removed.
 private ArrayList<Integer> keywordAsIntsNoDup = new ArrayList<Integer>(0);

 // Map for removing all duplicate letters in the keyword.
 private Map<Integer, Integer> keywordLetters = new LinkedHashMap<Integer, Integer>(0);

 // ArrayList to hold all 256 ASCII characters (as integers).
 private ArrayList<Integer> asciiArray = new ArrayList<Integer>(0);

 // ArrayList for storing the message from the file.
 ArrayList<Integer> fileMessageAsInteger = new ArrayList<Integer>(0);

 // Constructor
 public void process() 

 

 public void processKeyword(String keyword) 

 // Copy incoming keyword String
 this.keywordAsString = keyword;

 // Pass incoming keyword String to the removeDuplicate method.
 // removeDuplicate will first convert the letters to Integers,
 // then remove any duplicate letters.
 // Store the result in the keywordAsIntsNoDup ArrayList
 this.keywordAsIntsNoDup = removeDuplicates(this.keywordAsString);

 // Create ArrayList and fill it with all 256 ASCII characters (as integers).
 createAsciiArr();

 // Remove the keyword letters from the asciiArray. 
 for (int i=0; i<this.keywordAsIntsNoDup.size(); i++) 
 Integer letterToSearchFor = this.keywordAsIntsNoDup.get(i);
 if (this.asciiArray.contains(letterToSearchFor))
 
 this.asciiArray.remove(letterToSearchFor);
 
 
 // END processKeyword()


 public ArrayList<Integer> removeDuplicates(String keyword) 

 // Copy incoming keyword String
 this.keyword = keyword;

I really would appreciate if someone would help me Java is really no piece of cake.
// Loop through the keywordAsIntArray ArrayList, putting each 'letter' of the keyword into the map.
// Duplicate letters will be overridden, so the map will contain the keyword without any duplicates.
for (int i=0; i

 // Put the maps' key set (which holds the 'letters') into an ArrayList.
 // This will make it easier to put the 'letters' into the Table later.
 ArrayList<Integer> keyslist = new ArrayList<Integer>(this.keywordLetters.keySet());
 System.out.println("n" + "map.keySet() from keyslist ArrayList = " + keyslist.toString());

 return keyslist;
 

 public void createAsciiArr() 

 // Use an enhanced for loop to fill the asciiArray ArrayList
 // with all 256 ASCII characters as integers.
 for (int i=0; i<256; i++) 
 this.asciiArray.add(i);
 
 // END createAsciiArr()
// END class

Please I want to input String as keyword, then get back hex values as the encrypted code and not integers. Also Please I have more of the codes I dont really understand,am really new to Java. Please can anyone help me.