ANDROID - 2 EditText to Array, then show array values in Checkboxes, then selected checkboxes to JSON ListView Display

Input 2 EditText into Array, retrieve Array in another class for a Dialog Box Checkbox List View submit and save the checkboxes to display selected Checkboxes into a JSON ListView.

Please help! I really have no idea how to do this and I've been searching for over 8 hours for an answer, step by step searching too but still to my dismay since most of the codes don't seem to be working. Could you give me a link that could show how I could do this? Or possibly a sample code? It would be heaven if you could.

EDIT: Here is my code. My requirement was to store the values of my subject and their units in the internal, external, and shared preferences. The trouble I'm having is storing 2 EditText in an array and the code to retrieve them for a dialog pop up checkbox of the 2 EditText values given.

I'm rather new to Android, sorry.

package edu.usls.yared_projectendterm;

import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStreamWriter;
import java.util.ArrayList;
import java.util.List;

import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.os.Environment;
import android.view.View;
import android.widget.EditText;
import android.widget.Toast;

public class AddSubjects extends Activity {
        
        //Internal Storage - Initialization.
        EditText editSubjects;
        EditText editUnits;
        
        //Shared Preferences - Initialization.
        public static final String PREFS_NAME = "MyPrefsFile"; 
        

        
        
        
        @Override
        protected void onCreate(Bundle savedInstanceState) {
                super.onCreate(savedInstanceState);
                setContentView(R.layout.activity_add_subjects);
                
                //Retrieving Text from EditText box.
                editSubjects = (EditText) findViewById(R.id.Subjects);
                editUnits = (EditText) findViewById(R.id.Units);
                
        }

        
        public void Submit(View v) {
        
                //Retrieving from EditText and Initialization.
                String subjname = editSubjects.getText().toString();
                String subjtitle = subjname + ".txt";
                String subjunits = editUnits.getText().toString();
                String subjuntit = " - " + subjunits;
                
                if(subjname.isEmpty() || subjunits.isEmpty()){
                
                Toast.makeText(getApplicationContext(), "Please enter a filename or some data.",
                                Toast.LENGTH_LONG).show();
                
        }
                else{

                try{
                        
                        //Internal Storage
                        FileOutputStream fOut = openFileOutput(subjtitle,Context.MODE_PRIVATE);
                        fOut.write(subjname.getBytes());
                        fOut.write(subjuntit.getBytes());
                        fOut.close();
                        
                        //Shared Preferences=
                        EditText editTextFileName = (EditText) findViewById(R.id.Subjects);
                        EditText editTextUnits = (EditText) findViewById(R.id.Units);
                        SharedPreferences settings = getSharedPreferences(PREFS_NAME,Context.MODE_PRIVATE);
                        SharedPreferences.Editor outputs = settings.edit();
                    outputs.putString("Subject", editTextFileName.getText().toString());
                    outputs.putString("Units", editTextUnits.getText().toString());
                    outputs.commit();
                    
                    //External Storage
                    File myFile= new File(Environment.getExternalStorageDirectory().getPath(), subjtitle);
                    myFile.createNewFile();
                    FileOutputStream eOut = new FileOutputStream(myFile);
                    eOut.write(subjname.getBytes());
                    eOut.write(subjuntit.getBytes());
                    OutputStreamWriter Outputer = new OutputStreamWriter(eOut);
                    Outputer.close();
                    fOut.close();
                    
                    
                 
                    
                        editSubjects.setText("");
                        
                        Toast.makeText(getApplicationContext(), "Data has successfully been saved.",
                                Toast.LENGTH_LONG).show();
                        
                    Intent intent = new Intent(this,MainActivity.class);
                        startActivity(intent);

                } catch (FileNotFoundException e){
                        e.printStackTrace();
                } catch (IOException e){
                        e.printStackTrace();
                }

        }

                

                
            }
        

    public void BackButton(View v) {
        
    Intent intent = new Intent(this,MainActivity.class);
        startActivity(intent);
        
    }
        
}