Hey Guys My I am Dealing With This Issue I Want To merge to line from txt file and show them in Arraylist So My Code Is That And I Want To Skip The -- Line To Show in Arraylist..
private List getQuotes(){
List<String> quotes = new ArrayList<>();
BufferedReader bufferedReader = null;
try {
InputStream open = getAssets().open("barish.txt");
bufferedReader = new BufferedReader(new InputStreamReader(open));
String line;
while ((line = bufferedReader.readLine()) != null) {
quotes.add(line);
}
} catch (IOException e) {
e.printStackTrace();
} finally {
if (bufferedReader != null) {
try {
bufferedReader.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
return quotes;
}
[enter image description here][1]
txt File image is here [1]: https://i.stack.imgur.com/AiI67.png
You could check if the line is not equal to -- before adding it to the quotes list.
if(line.equals("--") == false) {
quotes.add(line);
}
Edit: Combining the lines together
In order to combine the strings between the -- lines you could accumulate the quote into a string quoteLine
between each --. So if the line is not a -- line then it will be appended to the string quoteLine
. If it is a -- line then it will add the previously constructed quote to the array list and initialize quoteLine
to an empty string to reset it.
String line;
String quoteLine = "";
while ((line = bufferedReader.readLine()) != null) {
if(line.equals("--") == false) {
quotes.add(quoteLine);
quoteLine = "";
} else {
quoteLine += line;
}
}
try to use replaceAll method then read the file as above
line = line.replaceAll("--"," ");
//to remove all "--" and replace it with a space
This is Txt File ..
This Is A Poetry App.. This 2 Lines Make 1 poetry So I Want To Display every 2 lines together In My Recyclerlist View..
This The Example...
i Want To Display My Poetry Like This In Recycler View
You can do something like this:
public static List<List<String>> getQuotes(String file) {
List<List<String>> allQuotes = new ArrayList<>();
try (BufferedReader br = new BufferedReader(new FileReader(file))) {
// Let's have a queue backed by LinkedList to keep the two
// lines just before the next line that is '--'.
Queue<String> quotes = new LinkedList<String>();
String line;
while ((line = br.readLine()) != null) {
// If the current line starts with -- and the two previous lines persisted
// in the quotes queue to allQuotes and clear the quotes. You can do an equals
// check here if you're certain about no leading and trailing white spaces in
// each line and it is always --.
if (line.trim().startsWith("--")) {
// Don't add quotes to allQuotes when quotes queue is empty.
// You can also check quotes.size() == 2 along with !quotes.isEmpty()
// if you want to always have at least two quotes in each sub-list retuned.
if (!quotes.isEmpty()) {
allQuotes.add(new ArrayList(quotes));
quotes.clear();
}
} else if (!line.trim().isEmpty()) {
// Add each line into the quotes queue if it is not blank
// or if it is not --
quotes.add(line);
}
// If the size of queue is > 2 remove an item from from the front,
// because we are only interested in two lines before --
if (quotes.size() > 2) {
quotes.remove();
}
}
} catch (Exception e) {
e.printStackTrace(); // TODO: Handle exceptions
return null;
}
return allQuotes;
}
I think perhaps you want something more like this:
public List<List<String>> getQuotes() {
List<List<String>> allQuotes = new ArrayList<>();
BufferedReader bufferedReader = null;
try {
InputStream open = getAssets().open("barish.txt");
bufferedReader = new BufferedReader(new InputStreamReader(open));
String line;
ArrayList<String> quote = new ArrayList<>();
while ((line = bufferedReader.readLine()) != null) {
if (line.equals("--")) {
if (!quote.isEmpty()) {
allQuotes.add(quote);
}
quote = new ArrayList<>();
} else {
quote.add(line);
}
}
if (!quote.isEmpty()) {
allQuotes.add(quote);
}
} catch (IOException e) {
e.printStackTrace();
} finally {
if (bufferedReader != null) {
try {
bufferedReader.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
return allQuotes;
}
The result is a List<List<String>>
: a list of poems, with each poem in its own List<String>
.
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