ArrayList | ArrayList inherits from JavaScript Array
kandi X-RAY | ArrayList Summary
kandi X-RAY | ArrayList Summary
ArrayList inherits from JavaScript Array, without overwriting or populate this class.
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Currently covering the most popular Java, JavaScript and Python libraries. See a Sample of ArrayList
ArrayList Key Features
ArrayList Examples and Code Snippets
Lines of Code : 13License : Permissive (MIT License)
Copyprotected static ArrayList generateArrayListFromFile(String filename) throws IOException {
ArrayList result = new ArrayList<>();
try (Scanner s = new Scanner(new FileReader(filename))) {
while (s.hasNext() protected static ArrayList generateArrayListFromFile(String filename) throws IOException {
ArrayList result = new ArrayList<>();
try (BufferedReader br = new BufferedReader(new FileReader(filename))) {
while (br.r protected static ArrayList generateArrayListFromFile(String filename) throws IOException {
List result = Files.readAllLines(Paths.get(filename));
return (ArrayList) result;
} Community Discussions
Trending Discussions on ArrayList
QUESTION
...i have String variable from coverting arraylist string with value like this
ANSWER
Answered 2021-Jun-15 at 23:28Within a String value, you can use "\n" to denote a line break. So in your example, your string value should be as follows:
QUESTION
I have file txt with format like this
...ANSWER
Answered 2021-Jun-15 at 21:31You add each line to the variable list_Siswa. So for instance the first element of list_Siswa will be ["Nama"," John"], and so data_Siswa[0] equals "Nama" and data_Siswa[1] equals " John". Then data_Siswa[2] throws an error, because there is no such element in the array.
The code isn't smart enough to see Nama: John and assume the following lines are grades that should be associated with John. If you want that, you'll have to do it yourself.
QUESTION
My app consists in letting you add lists in which you can keep your notes. Therefore, I have this NotesListActivity where I can add and keep my Lists. I wanted to filter this lists following the https://www.youtube.com/watch?v=CTvzoVtKoJ8 tutorial and then I tried to adapt it to my code like below. Could you please tell me what is the problem here, cause I don't even get an error, I just not get any title of list as result. So, this is what I have in my RecyclerAdapter:
...ANSWER
Answered 2021-Jun-13 at 20:18The problem is that you are using an empty notesListAll list for filtering results; you need to populate it with the list of notes in the constructor
QUESTION
I need to pass this:
...ANSWER
Answered 2021-Jun-15 at 19:49You can use simply intent.putExtra instead of worrying about which variant like put_____Extra to use.
When extracting the value, you can use intent.extras to get the Bundle and then you can use get() on the Bundle and cast to the appropriate type. This is easier than trying to figure out which intent.get____Extra function to use to extract it, since you will have to cast it anyway.
The below code works whether your data class is Serializeable or Parcelable. You don't need to use arrays, because ArrayLists themselves are Serializeable, but you do need to convert from MutableList to ArrayList.
QUESTION
**I am trying to write the code for getting the date in required format , I have got the dates but how to add the required time with it , here I have
startDate - 1/08/2021 00:00:00 , EndDate - 20/08/2021 23:59:59 , increment days: 10
and the Expected output is :
...ANSWER
Answered 2021-Jun-15 at 12:58Use the date-time API.
(The code should be self-explanatory.)
QUESTION
First time actually using anything to do with swing - sorry for the poor code and crude visuals!
Using swing for a massively over-complicated password checker school project, and when I came to loading in a JMenuBar, it doesn't render properly the first time. Once I run through one of the options first, it reloads correctly, but the first time it comes out like this:
First render attempt
But after I run one of the methods, either by clicking one of the buttons that I added to check if it was just the JFrame that was broken or using one of the broken menu options, it reloads correctly, but has a little grey bar above where the JMenuBar actually renders: Post-method render
The code for the visuals is as follows:
...ANSWER
Answered 2021-Jun-15 at 18:29You should separate creating your menu from your content. Please review the following example. I decoupled your menu, component, and event logic into meaningful phases.
QUESTION
I need to get the value of another child in my Firebase database inside addChildEventListener but addValueEventListener won't get triggered. Meaning that user_name_list will always be empty. How Can I solve this issue? Thanks!
ANSWER
Answered 2021-Jun-15 at 14:40The problem is not so much that your ValueEventListener isn't getting triggered, but that you call list_fonct before that happens.
I'll include some links at the bottom to learn more about this, but for now the simple fix is to move the call to list_fonct into the onDataChange that is called one the user data is loaded:
QUESTION
I'm doing a Group Chat with Firebase and currently I'm using a RecyclerView to display chat messages and I'm having a problem. When you open the app in the fragmented home and you go to chat activity and start chatting (adding elements to recycler view) all goes fine. But, when you go via the NavigationDrawer to another fragment and get back to the chat fragment using again this Navigation Drawer. When you add one element in the chat it appears all in the blank it just displays the last message. Anybody knows why does this happens?
Here I leave the RecyclerView Adapter Code:
...ANSWER
Answered 2021-Jun-15 at 13:55To solve your problem you can just remove the OnResume method because you are initializing the array every time you change between fragments and that is the problem.
QUESTION
I have a dataframe containing a few columns with arrays. Here's a sample of one of the columns:
...ANSWER
Answered 2021-Jun-15 at 13:30Try with explode + value_counts:
QUESTION
So I am relatively new to programming, and I have been working on this task app, where I want to save the data such as task name and more, given by the user. I am trying to accomplish this using Room. Now, initially, when I tried to do it, the app would crash since I was doing everything on the main thread probably. So, after a little research, I came to AsyncTask, but that is outdated. Now finally I have come across the Executer. I created a class for it, but I am a little unsure as to how I can implement it in my app. This is what I did :
Entity Class :
...ANSWER
Answered 2021-Jun-14 at 12:03First make a Repository class and make an instance of your DAO
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