Just example of json of Countries..

data-countries.json

[ 
  { "name" : "Afghanistan", "code" : "AF"}, 
  { "name" : "Åland Islands", "code" : "AX"}, 
  { "name" : "Albania", "code" : "AL"}, 
  { "name" : "Algeria", "code" : "DZ"}, 
  { "name" : "American Samoa", "code" : "AS"}, 
  { "name" : "AndorrA", "code" : "AD"}, 
  { "name" : "Angola", "code" : "AO"}, 
  { "name" : "Anguilla", "code" : "AI"}, 
  { "name" : "Antarctica", "code" : "AQ"}, 
  { "name" : "Antigua and Barbuda", "code" : "AG"}, 
  { "name" : "Argentina", "code" : "AR"}, 
  { "name" : "Armenia", "code" : "AM"}, 
  { "name" : "Aruba", "code" : "AW"}, 
  { "name" : "Australia", "code" : "AU"}, 
  { "name" : "Austria", "code" : "AT"}, 
  { "name" : "Azerbaijan", "code" : "AZ"}, 
  { "name" : "Bahamas", "code" : "BS"}, 
  { "name" : "Bahrain", "code" : "BH"}, 
  { "name" : "Bangladesh", "code" : "BD"}, 
  { "name" : "Barbados", "code" : "BB"}, 
  { "name" : "Belarus", "code" : "BY"}, 
  { "name" : "Belgium", "code" : "BE"}, 
  { "name" : "Belize", "code" : "BZ"}, 
  { "name" : "Benin", "code" : "BJ"}, 
  { "name" : "Bermuda", "code" : "BM"}, 
  { "name" : "Bhutan", "code" : "BT"}, 
  { "name" : "Bolivia", "code" : "BO"}, 
  { "name" : "Bosnia and Herzegovina", "code" : "BA"}, 
  { "name" : "Botswana", "code" : "BW"}, 
  { "name" : "Bouvet Island", "code" : "BV"}, 
  { "name" : "Brazil", "code" : "BR"}, 
  { "name" : "British Indian Ocean Territory", "code" : "IO"}, 
  { "name" : "Brunei Darussalam", "code" : "BN"}, 
  { "name" : "Bulgaria", "code" : "BG"}, 
  { "name" : "Burkina Faso", "code" : "BF"}, 
  { "name" : "Burundi", "code" : "BI"}, 
  { "name" : "Cambodia", "code" : "KH"}, 
  { "name" : "Cameroon", "code" : "CM"}, 
  { "name" : "Canada", "code" : "CA"}, 
  { "name" : "Cape Verde", "code" : "CV"}, 
  { "name" : "Cayman Islands", "code" : "KY"}, 
  { "name" : "Central African Republic", "code" : "CF"}, 
  { "name" : "Chad", "code" : "TD"}, 
  { "name" : "Chile", "code" : "CL"}, 
  { "name" : "China", "code" : "CN"}, 
  { "name" : "Christmas Island", "code" : "CX"}, 
  { "name" : "Cocos (Keeling) Islands", "code" : "CC"}, 
  { "name" : "Colombia", "code" : "CO"}, 
  { "name" : "Comoros", "code" : "KM"}, 
  { "name" : "Congo", "code" : "CG"}, 
  { "name" : "Congo, The Democratic Republic of the", "code" : "CD"}, 
  { "name" : "Cook Islands", "code" : "CK"}, 
  { "name" : "Costa Rica", "code" : "CR"}, 
  { "name" : "Cote D\"Ivoire", "code" : "CI"}, 
  { "name" : "Croatia", "code" : "HR"}, 
  { "name" : "Cuba", "code" : "CU"}, 
  { "name" : "Cyprus", "code" : "CY"}, 
  { "name" : "Czech Republic", "code" : "CZ"}, 
  { "name" : "Denmark", "code" : "DK"}, 
  { "name" : "Djibouti", "code" : "DJ"}, 
  { "name" : "Dominica", "code" : "DM"}, 
  { "name" : "Dominican Republic", "code" : "DO"}, 
  { "name" : "Ecuador", "code" : "EC"}, 
  { "name" : "Egypt", "code" : "EG"}, 
  { "name" : "El Salvador", "code" : "SV"}, 
  { "name" : "Equatorial Guinea", "code" : "GQ"}, 
  { "name" : "Eritrea", "code" : "ER"}, 
  { "name" : "Estonia", "code" : "EE"}, 
  { "name" : "Ethiopia", "code" : "ET"}, 
  { "name" : "Falkland Islands (Malvinas)", "code" : "FK"}, 
  { "name" : "Faroe Islands", "code" : "FO"}, 
  { "name" : "Fiji", "code" : "FJ"}, 
  { "name" : "Finland", "code" : "FI"}, 
  { "name" : "France", "code" : "FR"}, 
  { "name" : "French Guiana", "code" : "GF"}, 
  { "name" : "French Polynesia", "code" : "PF"}, 
  { "name" : "French Southern Territories", "code" : "TF"}, 
  { "name" : "Gabon", "code" : "GA"}, 
  { "name" : "Gambia", "code" : "GM"}, 
  { "name" : "Georgia", "code" : "GE"}, 
  { "name" : "Germany", "code" : "DE"}, 
  { "name" : "Ghana", "code" : "GH"}, 
  { "name" : "Gibraltar", "code" : "GI"}, 
  { "name" : "Greece", "code" : "GR"}, 
  { "name" : "Greenland", "code" : "GL"}, 
  { "name" : "Grenada", "code" : "GD"}, 
  { "name" : "Guadeloupe", "code" : "GP"}, 
  { "name" : "Guam", "code" : "GU"}, 
  { "name" : "Guatemala", "code" : "GT"}, 
  { "name" : "Guernsey", "code" : "GG"}, 
  { "name" : "Guinea", "code" : "GN"}, 
  { "name" : "Guinea-Bissau", "code" : "GW"}, 
  { "name" : "Guyana", "code" : "GY"}, 
  { "name" : "Haiti", "code" : "HT"}, 
  { "name" : "Heard Island and Mcdonald Islands", "code" : "HM"}, 
  { "name" : "Holy See (Vatican City State)", "code" : "VA"}, 
  { "name" : "Honduras", "code" : "HN"}, 
  { "name" : "Hong Kong", "code" : "HK"}, 
  { "name" : "Hungary", "code" : "HU"}, 
  { "name" : "Iceland", "code" : "IS"}, 
  { "name" : "India", "code" : "IN"}, 
  { "name" : "Indonesia", "code" : "ID"}, 
  { "name" : "Iran, Islamic Republic Of", "code" : "IR"}, 
  { "name" : "Iraq", "code" : "IQ"}, 
  { "name" : "Ireland", "code" : "IE"}, 
  { "name" : "Isle of Man", "code" : "IM"}, 
  { "name" : "Israel", "code" : "IL"}, 
  { "name" : "Italy", "code" : "IT"}, 
  { "name" : "Jamaica", "code" : "JM"}, 
  { "name" : "Japan", "code" : "JP"}, 
  { "name" : "Jersey", "code" : "JE"}, 
  { "name" : "Jordan", "code" : "JO"}, 
  { "name" : "Kazakhstan", "code" : "KZ"}, 
  { "name" : "Kenya", "code" : "KE"}, 
  { "name" : "Kiribati", "code" : "KI"}, 
  { "name" : "Korea, Democratic People\"S Republic of", "code" : "KP"}, 
  { "name" : "Korea, Republic of", "code" : "KR"}, 
  { "name" : "Kuwait", "code" : "KW"}, 
  { "name" : "Kyrgyzstan", "code" : "KG"}, 
  { "name" : "Lao People\"S Democratic Republic", "code" : "LA"}, 
  { "name" : "Latvia", "code" : "LV"}, 
  { "name" : "Lebanon", "code" : "LB"}, 
  { "name" : "Lesotho", "code" : "LS"}, 
  { "name" : "Liberia", "code" : "LR"}, 
  { "name" : "Libyan Arab Jamahiriya", "code" : "LY"}, 
  { "name" : "Liechtenstein", "code" : "LI"}, 
  { "name" : "Lithuania", "code" : "LT"}, 
  { "name" : "Luxembourg", "code" : "LU"}, 
  { "name" : "Macao", "code" : "MO"}, 
  { "name" : "Macedonia, The Former Yugoslav Republic of", "code" : "MK"}, 
  { "name" : "Madagascar", "code" : "MG"}, 
  { "name" : "Malawi", "code" : "MW"}, 
  { "name" : "Malaysia", "code" : "MY"}, 
  { "name" : "Maldives", "code" : "MV"}, 
  { "name" : "Mali", "code" : "ML"}, 
  { "name" : "Malta", "code" : "MT"}, 
  { "name" : "Marshall Islands", "code" : "MH"}, 
  { "name" : "Martinique", "code" : "MQ"}, 
  { "name" : "Mauritania", "code" : "MR"}, 
  { "name" : "Mauritius", "code" : "MU"}, 
  { "name" : "Mayotte", "code" : "YT"}, 
  { "name" : "Mexico", "code" : "MX"}, 
  { "name" : "Micronesia, Federated States of", "code" : "FM"}, 
  { "name" : "Moldova, Republic of", "code" : "MD"}, 
  { "name" : "Monaco", "code" : "MC"}, 
  { "name" : "Mongolia", "code" : "MN"}, 
  { "name" : "Montserrat", "code" : "MS"}, 
  { "name" : "Morocco", "code" : "MA"}, 
  { "name" : "Mozambique", "code" : "MZ"}, 
  { "name" : "Myanmar", "code" : "MM"}, 
  { "name" : "Namibia", "code" : "NA"}, 
  { "name" : "Nauru", "code" : "NR"}, 
  { "name" : "Nepal", "code" : "NP"}, 
  { "name" : "Netherlands", "code" : "NL"}, 
  { "name" : "Netherlands Antilles", "code" : "AN"}, 
  { "name" : "New Caledonia", "code" : "NC"}, 
  { "name" : "New Zealand", "code" : "NZ"}, 
  { "name" : "Nicaragua", "code" : "NI"}, 
  { "name" : "Niger", "code" : "NE"}, 
  { "name" : "Nigeria", "code" : "NG"}, 
  { "name" : "Niue", "code" : "NU"}, 
  { "name" : "Norfolk Island", "code" : "NF"}, 
  { "name" : "Northern Mariana Islands", "code" : "MP"}, 
  { "name" : "Norway", "code" : "NO"}, 
  { "name" : "Oman", "code" : "OM"}, 
  { "name" : "Pakistan", "code" : "PK"}, 
  { "name" : "Palau", "code" : "PW"}, 
  { "name" : "Palestinian Territory, Occupied", "code" : "PS"}, 
  { "name" : "Panama", "code" : "PA"}, 
  { "name" : "Papua New Guinea", "code" : "PG"}, 
  { "name" : "Paraguay", "code" : "PY"}, 
  { "name" : "Peru", "code" : "PE"}, 
  { "name" : "Philippines", "code" : "PH"}, 
  { "name" : "Pitcairn", "code" : "PN"}, 
  { "name" : "Poland", "code" : "PL"}, 
  { "name" : "Portugal", "code" : "PT"}, 
  { "name" : "Puerto Rico", "code" : "PR"}, 
  { "name" : "Qatar", "code" : "QA"}, 
  { "name" : "Reunion", "code" : "RE"}, 
  { "name" : "Romania", "code" : "RO"}, 
  { "name" : "Russian Federation", "code" : "RU"}, 
  { "name" : "RWANDA", "code" : "RW"}, 
  { "name" : "Saint Helena", "code" : "SH"}, 
  { "name" : "Saint Kitts and Nevis", "code" : "KN"}, 
  { "name" : "Saint Lucia", "code" : "LC"}, 
  { "name" : "Saint Pierre and Miquelon", "code" : "PM"}, 
  { "name" : "Saint Vincent and the Grenadines", "code" : "VC"}, 
  { "name" : "Samoa", "code" : "WS"}, 
  { "name" : "San Marino", "code" : "SM"}, 
  { "name" : "Sao Tome and Principe", "code" : "ST"}, 
  { "name" : "Saudi Arabia", "code" : "SA"}, 
  { "name" : "Senegal", "code" : "SN"}, 
  { "name" : "Serbia and Montenegro", "code" : "CS"}, 
  { "name" : "Seychelles", "code" : "SC"}, 
  { "name" : "Sierra Leone", "code" : "SL"}, 
  { "name" : "Singapore", "code" : "SG"}, 
  { "name" : "Slovakia", "code" : "SK"}, 
  { "name" : "Slovenia", "code" : "SI"}, 
  { "name" : "Solomon Islands", "code" : "SB"}, 
  { "name" : "Somalia", "code" : "SO"}, 
  { "name" : "South Africa", "code" : "ZA"}, 
  { "name" : "South Georgia and the South Sandwich Islands", "code" : "GS"}, 
  { "name" : "Spain", "code" : "ES"}, 
  { "name" : "Sri Lanka", "code" : "LK"}, 
  { "name" : "Sudan", "code" : "SD"}, 
  { "name" : "Suriname", "code" : "SR"}, 
  { "name" : "Svalbard and Jan Mayen", "code" : "SJ"}, 
  { "name" : "Swaziland", "code" : "SZ"}, 
  { "name" : "Sweden", "code" : "SE"}, 
  { "name" : "Switzerland", "code" : "CH"}, 
  { "name" : "Syrian Arab Republic", "code" : "SY"}, 
  { "name" : "Taiwan, Province of China", "code" : "TW"}, 
  { "name" : "Tajikistan", "code" : "TJ"}, 
  { "name" : "Tanzania, United Republic of", "code" : "TZ"}, 
  { "name" : "Thailand", "code" : "TH"}, 
  { "name" : "Timor-Leste", "code" : "TL"}, 
  { "name" : "Togo", "code" : "TG"}, 
  { "name" : "Tokelau", "code" : "TK"}, 
  { "name" : "Tonga", "code" : "TO"}, 
  { "name" : "Trinidad and Tobago", "code" : "TT"}, 
  { "name" : "Tunisia", "code" : "TN"}, 
  { "name" : "Turkey", "code" : "TR"}, 
  { "name" : "Turkmenistan", "code" : "TM"}, 
  { "name" : "Turks and Caicos Islands", "code" : "TC"}, 
  { "name" : "Tuvalu", "code" : "TV"}, 
  { "name" : "Uganda", "code" : "UG"}, 
  { "name" : "Ukraine", "code" : "UA"}, 
  { "name" : "United Arab Emirates", "code" : "AE"}, 
  { "name" : "United Kingdom", "code" : "GB"}, 
  { "name" : "United States", "code" : "US"}, 
  { "name" : "United States Minor Outlying Islands", "code" : "UM"}, 
  { "name" : "Uruguay", "code" : "UY"}, 
  { "name" : "Uzbekistan", "code" : "UZ"}, 
  { "name" : "Vanuatu", "code" : "VU"}, 
  { "name" : "Venezuela", "code" : "VE"}, 
  { "name" : "Viet Nam", "code" : "VN"}, 
  { "name" : "Virgin Islands, British", "code" : "VG"}, 
  { "name" : "Virgin Islands, U.S.", "code" : "VI"}, 
  { "name" : "Wallis and Futuna", "code" : "WF"}, 
  { "name" : "Western Sahara", "code" : "EH"}, 
  { "name" : "Yemen", "code" : "YE"}, 
  { "name" : "Zambia", "code" : "ZM"}, 
  { "name" : "Zimbabwe", "code" : "ZW"} 
]