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using Json file in Java

I am trying to import a json file and use the data inside it and export the file as json file
Use the file movies.json to initialize the Movie Library, and export a modified Json file to save the library upon completion of the program.
private Vector<MovieDescription> libraryList = new Vector<MovieDescription>();
public static void main(String args[]) {
try {
MovieLibrary movies = new MovieLibrary();
// Input the group from movies.json
System.out.println("Importing group from movies.json");
MovieLibrary movies1 = new MovieLibrary("movies.json");
movies1.add(new MovieDescription("Suicide Squad", "PG-13", "05 August 2016", " 2h 3min",
"Fearing that the world is vulnerable to otherworldly threats, the Government enlists the disposable Task Force X on a high-risk mission in exchange for absolution: Meanwhile, the Joker operates his own agenda.",
"Suicide Squad.mp4", "Action, Adventure, Crime", " Will Smith, Jared Leto, Margot Robbie "));
movies.add(new MovieDescription("Sausage Party", "R", "12 August 2016", "1h 29min",
"The products at Shopwell's Grocery Store are made to believe a code that helps them live happy lives until it's time for them to leave the comfort of the supermarket and head for the great beyond. However, after a botched trip to the great beyond leaves one sausage named Frank and his companion Bun stranded, Frank goes to great lengths (pun intended) to return to his package and make another trip to the great beyond. But as Frank's journey takes him from one end of the supermarket to the other, Frank's quest to discover the truth about his existence as a sausage turns incredibly dark. Can he expose the truth to the rest of the supermarket and get his fellow products to rebel against their human masters?",
"Sausage Party.mp4", "Animation, Adventure, Comedy", " Seth Rogen, Kristen Wiig, Jonah Hill"));
movies.add(new MovieDescription("Deadpool", "R", "12 February 2016", "1h 48min",
"A former Special Forces operative turned mercenary is subjected to a rogue experiment that leaves him with accelerated healing powers, adopting the alter ego Deadpool. ",
"Deadpool.mp4", "Action, Adventure, Comedy", " Ryan Reynolds, Morena Baccarin, T.J. Miller"));
movies1.printLibrary();
PrintWriter out = new PrintWriter("moviesJava.json");
out.println(movies1.toJSONString());
out.close();
System.out.println("Done exporting group in json to movies.json");
// now use java's built in serialization to serialize and
// deserialize
File outFile = new File("movies.ser");
ObjectOutputStream os = new ObjectOutputStream(new FileOutputStream(outFile));
os.writeObject(movies);
os.flush();
System.out.println("Used Java serialization of the group to movies.ser");
os.close();
File inFile = new File("movies.ser");
ObjectInputStream in = new ObjectInputStream(new FileInputStream(inFile));
MovieLibrary movieAgain = (MovieLibrary) in.readObject();
System.out.println("Done importing the group from movies.ser as:");
movieAgain.printLibrary();
in.close();
} catch (Exception e) {
System.out.println("exception: " + e.getMessage());
e.printStackTrace();
}
}
and this is the toJsonString method
public String toJSONString() {
String ret;
JSONObject obj = new JSONObject();
for (Enumeration<MovieDescription> e = libraryList.elements(); e.hasMoreElements();) {
MovieDescription movi = (MovieDescription) e.nextElement();
try {
obj.put(movi.getTitle(), movi.toJson());
/*
* obj.put(movi.getActors(),movi.toJson());
* obj.put(movi.getFilename(),movi.toJson());
* obj.put(movi.getGenre(),movi.toJson());
* obj.put(movi.getPlot(),movi.toJson());
* obj.put(movi.getRated(),movi.toJson());
* obj.put(movi.getReleased(),movi.toJson());
* obj.put(movi.getRuntime(),movi.toJson());
*/
} catch (JSONException e1) {
e1.printStackTrace();
}
}
ret = obj.toString();
return ret;
}
I'm getting the following exception:
org.json.JSONException: Null key.
at org.json.JSONObject.put(JSONObject.java:1097)
at MovieLibrary.toJSONString(MovieLibrary.java:124)
at MovieLibrary.main(MovieLibrary.java:69)

A cleaner way of doing this is by using Jackson.
Create class MovieLibrary with getter and setter methods for each variable inside it.
ObjectMapper mapper = new ObjectMapper();
MovieLibrary movies = new MovieLibrary();
//Object to JSON in file
mapper.writeValue(new File("c:\\file.json"), movies);
The above code will map the data in the file to object of MovieLibraary(movies). You can modify the value in movies object by using setter methods.
http://www.mkyong.com/java/jackson-2-convert-java-object-to-from-json/

Parsing a Tab Separated File

I'm attempting to TSV from IMDB:
$hutter Battle of the Sexes (2017) (as $hutter Boy) [Bobby Riggs Fan] <10>
NVTION: The Star Nation Rapumentary (2016) (as $hutter Boy) [Himself] <1>
Secret in Their Eyes (2015) (uncredited) [2002 Dodger Fan]
Steve Jobs (2015) (uncredited) [1988 Opera House Patron]
Straight Outta Compton (2015) (uncredited) [Club Patron/Dopeman]
$lim, Bee Moe Fatherhood 101 (2013) (as Brandon Moore) [Himself - President, Passages]
For Thy Love 2 (2009) [Thug 1]
Night of the Jackals (2009) (V) [Trooth]
"Idle Talk" (2013) (as Brandon Moore) [Himself]
"Idle Times" (2012) {(#1.1)} (as Brandon Moore) [Detective Ryan Turner]
As you can some lines start with a tab and some do not. I want a map with the actor's name as a key and a list of movies as the value. Between the actor's name is one or more tabs to until the movie listing.
My code:
while ((line = reader.readLine()) != null) {
Matcher matcher = headerPattern.matcher(line);
boolean headerMatchFound = matcher.matches();
if (headerMatchFound) {
Logger.getLogger(ActorListParser.class.getName()).log(Level.INFO, "Header for actor list found");
String newline;
reader.readLine();
while ((newline = reader.readLine()) != null) {
String[] fullLine = null;
String actor;
String title;
Pattern startsWithTab = Pattern.compile("^\t.*");
Matcher tab = startsWithTab.matcher(newline);
boolean tabStartMatcher = tab.matches();
if (!tabStartMatcher) {
fullLine = newline.split("\t.*");
System.out.println("Actor: " + fullLine[0] +
"Movie: " + fullLine[1]);
}//this line will have code to match lines that start with tabs.
}
}
}
The way I've done this only works for a few lines before I get and arrayoutofbounds exception. How can I parse the lines and split them into 2 strings at max if they have one or more tabs?

There are subtleties in parsing tab/comma-delimited data files having to do with quoting and escaping.
To save yourself a lot of work, frustration and headaches you really should consider using one of the existing CSV parsing libaries such as OpenCSV or Apache Commons CSV.
Posted as an answer instead of a comment because the OP has not stated a reason for reinventing the wheel and there are some tasks that really have been "solved" once and for all.

script to search address on google maps

I have names of 1100 hospitals from NY region. I need to find the address of these hospitals from google. I am looking for some script which I can use to supply all these hospital name and it could return me with an address. The script could return a simple google search result.
Input format:
Hospital Name
Center for Ambulatory Surgery
Genetic Diagnostic Labs Inc
Desired output format:
Hospital Name Hospital Address
Center for Ambulatory Surgery 3112 Sheridan Dr, Amherst, NY 14226
Genetic Diagnostic Labs Inc 490 Delaware Ave, Buffalo, NY 14202

A solution with google Places API, but the results may be not very accurate:
http://codepen.io/anon/pen/JogeyV?editors=101
var NY_latlng = new google.maps.LatLng(40.828624, -73.898605);
map = new google.maps.Map(document.getElementById('map-canvas'), {
center: NY_latlng,
zoom: 15
});
var hospitals = [];
var hospitals_names = ["Center for Ambulatory Surgery","Genetic Diagnostic Labs Inc"];//insert your full list here
var service = new google.maps.places.PlacesService(map);
hospitals_names.forEach( function(name ){
service.textSearch(
{
query: name,
location: NY_latlng,
radius: 50000, //in meter
},function(results,status){
if (status == google.maps.places.PlacesServiceStatus.OK){
var hospital= { name: name, addresses: []};
$('#address-list').append("<h2>"+name+"</h2><ul></ul>");
for (var i = 0; i < results.length; i++) {
hospital.addresses.push( results[i].formatted_address );
$('#address-list > ul').append("<li>"+results[i].formatted_address);
}
hospitals.push( hospital );
}
});

You can do this in R with the ggmap package, though perhaps not reliably enough to produce the results you want. For instance this attempt to geocode fails:
geocode("Genetic Diagnostic Labs Inc")
Warning message:
geocode failed with status ZERO_RESULTS, location = "Genetic Diagnostic Labs Inc"
So to illustrate a solution, I appended " NY" to the Google searches:
library(ggmap)
hospital_names <- c("Center for Ambulatory Surgery", "Genetic Diagnostic Labs Inc")
address_vec <- lapply(hospital_names, function(x) revgeocode(as.numeric(geocode(paste(x,", NY")))))
result <- data.frame(name = hospital_names, address = unlist(address_vec))
Result:
result
name address
1 Center for Ambulatory Surgery 426 Union Road, West Seneca, NY 14224, USA
2 Genetic Diagnostic Labs Inc City Hall Park Path, New York, NY 10007, USA
But these are not the addresses you specified - you may need to refine your inputs.

storing transactions in an OrderedList

I'm a Java noob so please bear with me.
I'm having an issue with a java project I have to complete. We have to sort a list of 10,000 customer transactions, pick the top three customers that spent the most, then give five random customers gift cards, five of them starting at $20 and ending at $100, increasing in $20 increments. So far I have the following:
public static void main(String[] args) throws IOException {
BufferedReader inputStream = new BufferedReader (new FileReader("Transactions.txt"));
BufferedWriter outputStream = new BufferedWriter (new FileWriter("output.txt"));
Scanner trans = null;
try {
trans = new Scanner(new BufferedReader(new FileReader("Transactions.txt")));
trans.useDelimiter("s*");
while (trans.hasNext()) {
System.out.println(trans.next());
}
}
finally {
if (trans !=null) {
trans.close();
I'm confused as to how I would put this information into an OrderedList so it'll sort them in ascending order according to the amount they spent.
EDIT: Here are some lines from the transaction.txt file:
Order # Date First name Middle Initial Last name Address City State Zip Email Transaction Amount
1 8/26/2012 Kristina H Chung 947 Martin Ave. Muncie CA 46489 khchung#business.com $593
2 11/16/2012 Paige H Chen 15 MainWay Rd. Dallas HI 47281 phchen#business.com $516
3 11/10/2012 Sherri E Melton 808 Washington Way Brazil CA 47880 semelton#business.com $80
4 9/20/2012 Gretchen I Hill 56 Washington Dr. Atlanta FL 47215 gihill#business.com $989
5 3/11/2012 Karen U Puckett 652 Maplewood Ct. Brazil FL 46627 kupuckett#business.com $826
My apologies, but I have no idea how to make this look neat.

Java reading information from a website using Jsoup

I've gone through multiple posts about parsing and such. Most of the responses that I saw were recommending the person to use a Library or something else. My problem right now is creating an algorithm that will fetch the exact information I want. My purpose for this is to fetch 2 statuses from the Weather website for school closings. I started using Jsoup as someone recommended but I need help with it.
Webpage: Click here
Image: Click here
Example of webpage source: click here
I could probably figure out how to get a certain line of text within the webpage since I already know the name of the school im looking for, but 2 lines down is the status which is what I need. would be easy if each school had a certain status but they are all either Closed or Two-hour Delay so I can't just make a search for that. I want some ideas or answers on how i can apporach this. I am going to do this 2 times because I am wanting to look up 2 schools. I already have the names which I can use to look them up I just need the status.
Here is an example of what I want to do. (sudo code)
Document doc = connect(to url);
Element schoolName1 = doc.lookForText(htmlLineHere/schoolname);
String status1 = schoolName.getNext().text();//suppose this gets the line right after which should be my status and then cleans off the Html.
This is what I have right now
public static SchoolClosing lookupDebug() throws IOException {
final ArrayList<String> Status = new ArrayList<String>();
try {
//connects to my wanted website
Document doc = Jsoup.connect("http://www.10tv.com/content/sections/weather/closings.html").get();
//selects/fetches the line of code I want
Element schoolName = doc.html("<td valign="+"top"+">Athens City Schools</td>");
//an array of Strings where I am going to add the text I need when I get it
final ArrayList<String> temp = new ArrayList<String>();
//checking if its fetching the text
System.out.println(schoolName.text());
//add the text to the array
temp.add(schoolName.text());
for (int i = 0; i <= 1; i++) {
final String[] tempStatus = temp.get(i).split(" ");
Status.add(tempStatus[0]);
}
} catch (final IOException e) {
throw new IOException("There was a problem loading School Closing Status");
}
return new SchoolClosing(Status);
}

Document doc = Jsoup.connect(
"http://www.10tv.com/content/sections/weather/closings.html")
.get();
for (Element tr : doc.select("#closings tr")) {
Element tds = tr.select("td").first();
if (tds != null) {
String county = tr.select("td:eq(0)").text();
String schoolName = tr.select("td:eq(1)").text();
String status = tr.select("td:eq(2)").text();
System.out.println(String.format(
"county: %s, schoolName: %s, status: %s", county,
schoolName, status));
}
}
output:
county: Athens, schoolName: Beacon School, status: Two-hour Delay
county: Franklin, schoolName: City of Grandview Heights, status: Snow Emergency through 8pm Thursday
county: Franklin, schoolName: Electrical Trades Center, status: All Evening Activities Cancelled
county: Franklin, schoolName: Hilock Fellowship Church, status: PM Services Cancelled
county: Franklin, schoolName: International Christian Center, status: All Evening Activities Cancelled
county: Franklin, schoolName: Maranatha Baptist Church, status: PM Services Cancelled
county: Franklin, schoolName: Masters Commission New Covenant Church, status: Bible Study Cancelled
county: Franklin, schoolName: New Life Christian Fellowship, status: All Activities Cancelled
county: Franklin, schoolName: The Epilepsy Foundation of Central Ohio, status: All Evening Activities Cancelled
county: Franklin, schoolName: Washington Ave United Methodist Church, status: All Evening Activities Cancelled
or in a loop:
for (Element tr : doc.select("#closings tr")) {
System.out.println("----------------------");
for (Element td : tr.select("td")) {
System.out.println(td.text());
}
}
that gives:
----------------------
Athens
Beacon School
Two-hour Delay
----------------------
Franklin
City of Grandview Heights
Snow Emergency through 8pm Thursday
----------------------
Franklin
Electrical Trades Center
All Evening Activities Cancelled
...