shafinmahmud

public class JsonFlattener {

    private final String jsonString;

    public JsonFlattener(String json) {
        this.jsonString = json;
    }

    public Map<String, String> flattenToMap() throws IOException {
        Map<String, String> valueMap = new HashMap<>();

shafinmahmud

# First thing First! Update! Upgrade!
sudo apt-get update && sudo apt-get -y upgrade

# Fixing Time problem by keeping RTC in local time (for dual boot with windows 10)
sudo timedatectl set-local-rtc 1 --adjust-system-clock

# Install vim
sudo apt-get install -y vim

# Download Chrome and install it.

shafinmahmud

   
   # Add following location directive to the default server block located in
   # /etc/nginx/conf.d/default.conf (if you installed from official NGINX repository) or,
   # /etc/nginx/sites-enabled/default (if you installed from Debian or Ubuntu repositories)
   
   # This location directive serve static content from the root 
   location /shared {
    	root           /root/directory/of/files/;
    	autoindex      on;
   }

shafinmahmud

#1 201 Core Java Interview Questions (** this 200 will cover the maximum topics)
https://www.javatpoint.com/corejava-interview-questions

#2 String
  a. String in basic 
    - https://www.javatpoint.com/java-string   
  b. String vs StringBuilder vs StringBuffer
    - https://www.geeksforgeeks.org/g-fact-27-string-vs-stringbuilder-vs-stringbuffer/
    - http://javarevisited.blogspot.com/2011/07/string-vs-stringbuffer-vs-stringbuilder.html
    - https://www.journaldev.com/538/string-vs-stringbuffer-vs-stringbuilder

shafinmahmud

# you should look at the following URL's in order to grasp a solid understanding
# of Nginx configuration files in order to fully unleash the power of Nginx.
# http://wiki.nginx.org/Pitfalls
# http://wiki.nginx.org/QuickStart
# http://wiki.nginx.org/Configuration
#
# Generally, you will want to move this file somewhere, and start with a clean
# file but keep this around for reference. Or just disable in sites-enabled.
#
# Please see /usr/share/doc/nginx-doc/examples/ for more detailed examples.

shafinmahmud

$ ssh-keygen -t rsa -C "<work-email>"

~/.ssh/id_rsa
~/.ssh/id_rsa_<work-id>

$ ssh-add -D
$ ssh-add ~/.ssh/id_rsa
$ ssh-add ~/.ssh/id_rsa_<work-id>
$ ssh-add -l

shafinmahmud

apply plugin: 'java'
apply plugin: 'war'

group = 'sample.web'
version = '0.0.1-SNAPSHOT'

sourceCompatibility = 1.8
targetCompatibility = 1.8

tasks.withType(JavaCompile) {

shafinmahmud

-- To see what timezone your MySQL session is using, just execute this:
SELECT @@global.time_zone, @@session.time_zone;

-- If you feel to Change on your specific TimeZone, execute:
SET GLOBAL time_zone = '+6:00';
SET SESSION time_zone = '+6:00';

shafinmahmud

sudo apt-get update
sudo apt-get install mysql-server
sudo mysql_secure_installation

shafinmahmud

# Licensed to the Apache Software Foundation (ASF) under one or more
# contributor license agreements.  See the NOTICE file distributed with
# this work for additional information regarding copyright ownership.
# The ASF licenses this file to You under the Apache License, Version 2.0
# (the "License"); you may not use this file except in compliance with
# the License.  You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software