Bahaaib

import java.math.BigInteger;
import java.util.Scanner;

public class Fibonacci {

    static double num;
    static Runtime runtime = Runtime.getRuntime();
    static long maxMem, allocMem;
    static long startTime, endTime;

Bahaaib

public class AppSingleton {

    private AppSingleton() {
    }

    private static class SingletonHelper{
        private static final AppSingleton INSTANCE = new AppSingleton();
    }

    public static AppSingleton getInstance(){

Bahaaib

package com.example.client;

import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.IOException;
import java.net.Socket;
import java.util.HashMap;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

Bahaaib

/**
 * Created by Bahaa on 4/7/2018.
 */
package com.example.server;

import java.net.*;
import java.io.*;
import java.util.Base64;

Bahaaib

/**
 * Created by Bahaa on 4/7/2018.
 */


package com.example.bahaa.clientapp;

import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.AsyncTask;

Bahaaib

  private SpannableStringBuilder customErrorText(String msg){
        int eColor = Color.parseColor("#000000"); // whatever color you want
        ForegroundColorSpan fgcspan = new ForegroundColorSpan(eColor);
        SpannableStringBuilder textBuilder = new SpannableStringBuilder(msg);
        textBuilder.setSpan(fgcspan, 0, msg.length(), 0);

        return textBuilder;
    }

Bahaaib

//To reverse the switch ENABLE/DISABLE Text color against the switch thumb color
    public static void setSwitchColor(SwitchCompat v) {
        // thumb regular color 
        int thumbColor = Color.parseColor("#00E5FF");

        // track regular color
        int trackColor = Color.parseColor("#00B8D4");

        // setting the thumb color on action
        DrawableCompat.setTintList(v.getThumbDrawable(), new ColorStateList(

Bahaaib

package com.example.bahaaibrahim.firebasetest;

import android.content.Intent;
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.design.widget.FloatingActionButton;
import android.support.design.widget.Snackbar;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.text.TextUtils;

Bahaaib

package com.example.bahaaibrahim.firebasetest;

import android.content.Context;
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.design.widget.FloatingActionButton;
import android.support.design.widget.Snackbar;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.view.View;

Bahaaib

public class MainActivity extends AppCompatActivity {
    public Button mSendButton;
    public DatabaseReference mDatabase;
    public HashMap<String, String> dataMap;
    public TextView retData;
    public String name;