Java

<pre>
package nb.test.gamepackagev1;
import edu.sjcny.gpv1.*;
import java.awt.Color;
import java.awt.Graphics;
import java.io.File;
import java.io.IOException;
import java.util.Scanner;

public class Homework4 extends DrawableAdapter
{   static Homework4 ge = new Homework4(); 

    static Character[][] parade = new Character[4][2];    

    static int[][] aNum = new int[4][2];
    static GameBoard gb = new GameBoard(ge, "Homework 4 by Sam Tahiri");
    public static void main(String[] args) throws IOException
    {
        showGameBoard(gb);
       
        int newX, newY;
        for (int i = 0; i < parade.length; i++) {
            parade[i][0] = new Character[4][2];
            newX = aNum[i][0];
            newY = aNum[i][1];
            parade[i][0].setX(newX);
            parade[i][1].setY(newY);
        }        
        readArray();
        
    }
    
    public static void readArray() throws IOException {
        File fileObj = new File("Array.txt");
        if (!fileObj.exists()) {
            System.out.println("File does not exist");
        }
        else {
            Scanner fileIn = new Scanner(fileObj);
        for (int i = 0; i < aNum.length; i++) { 
            //System.out.println(fileIn);
            int x = fileIn.nextInt();
            int y = fileIn.nextInt();
            System.out.println(x + " " + y);
           
            aNum[i][0] = x;
            aNum[i][1] = y;
//            parade[i].setX(newX);
//            parade[i].setY(newY);            
            for (int j = 0; j < parade.length; j++) {
                parade[i][0].setX(x);
                parade[i][1].setY(y);
            }
        }
        }
        System.exit(0);
    }
//    
//    public void moveAll(Character[] Character) {
//        for (int i = 0; i < aNum.length; i++) {
//            Character[i].setX(aNum[i][0]);
//            Character[i].setY(aNum[i][1]);
//        }        
//    }
    
    public void draw(Graphics g) {
        for (int i = 0; i < parade.length; i++) {
            parade[i][0].show(g);
            parade[i][1].show(g);
        }
    }
    
}

Create a function :
1. Int fact (int y) - to return the factorial of y .
2. Void printspecial() - by ivoking the function fact () , print all special numbers between s (start limit) and l ( last limit). The function reads starts (s) and last (l) limits. ( If sum of factorial of each digits of a numbers is equal to the number itself , the number is special ) . 
Exp : input n = 145 = 1! +4! +5!= 1+24+120= 145, so 145 is special number . 
Write a function Print () to I put start and end limits and by ivoking suitable function and print special numbers between start and end limits .

package com.example.10012698.calculatorproject;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;

import java.util.ArrayList;
import java.util.StringTokenizer;
public class MainActivity extends AppCompatActivity implements View.OnClickListener {

    Button button0, button1, button2, button3, button4, button5, button6,
            button7, button8, button9, buttonadd, buttonsubtract, buttonmultiply,
            buttondivide, buttonequals, buttonclear;
    TextView display;
    String displaytext="";
    double result;
    double x, y;
    ArrayList<String> list;


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        button0 = (Button) findViewById(R.id.button0);
        button1 = (Button) findViewById(R.id.button1);
        button2 = (Button) findViewById(R.id.button2);
        button3 = (Button) findViewById(R.id.button3);
        button4 = (Button) findViewById(R.id.button4);
        button5 = (Button) findViewById(R.id.button5);
        button6 = (Button) findViewById(R.id.button6);
        button7 = (Button) findViewById(R.id.button7);
        button8 = (Button) findViewById(R.id.button8);
        button9 = (Button) findViewById(R.id.button9);
        buttonadd = (Button) findViewById(R.id.buttonadd);
        buttonsubtract = (Button) findViewById(R.id.buttonsubtract);
        buttonmultiply = (Button) findViewById(R.id.buttonmultiply);
        buttondivide = (Button) findViewById(R.id.buttondivide);
        buttonclear = (Button) findViewById(R.id.buttonclear);
        buttonequals = (Button) findViewById(R.id.buttonequals);
        display = (TextView) findViewById(R.id.display);
        display.setOnClickListener(this);
        list = new ArrayList<>();
    }

    public void onClick(View view)
    {
        if(!(view.equals(buttonclear)&&!(view.equals(buttonequals))))
        {
           display.setText(display.getText()+""+((Button)view).getText());

        if(displaytext.equals("0"))
        {
            display.setText(" ");
        }

        if(view.equals(buttonclear))
        {
            display.setText(" ");
        }

        if(view.equals(buttonequals))
        {
            displaytext= displaytext.substring(0,displaytext.length()-1);
            StringTokenizer operators= new StringTokenizer(displaytext, "+-*/",true);

            while(operators.hasMoreTokens())
            {
                list.add(operators.nextToken());
            }

                for(int j=0; j<list.size()-1; j++)
                {
                    if (list.get(j).equals("*") || list.get(j).equals("/"))
                    {
                        x = Double.parseDouble(list.get(j - 1));
                        y = Double.parseDouble(list.get(j + 1));

                        if (list.get(j).equals("*"))
                        {
                            result+=(x*y);
                        }

                        if (list.get(j).equals("/"))
                        {
                            result+=(x/y);
                        }
                    }
                }
                for(int k=0;k<list.size()-1;k++)
                {
                    if (list.get(k).equals("+") || list.get(k).equals("-"))
                    {
                        x = Double.parseDouble(list.get(k - 1));
                        y = Double.parseDouble(list.get(k + 1));

                        if (list.get(k).equals("+"))
                        {
                            result+=(x+y);
                        }

                        if (list.get(k).equals("-"))
                        {
                            result+=(x-y);
                        }
                    }
                }
        }
        display.setText(""+result);


    }
}