i want read txt file into array.
In the array, how can i do that? data = new String[lines.size]
i dont want to hard code 10 in the array.
My code:
BufferedReader abc = new BufferedReader(new FileReader(myfile));
String []data;
data = new String[10]; // <= how can i do that? data = new String[lines.size]
for (int i=0; i<lines.size(); i++) {
data[i] = abc.readLine();
System.out.println(data[i]);
}
abc.close();
Use an ArrayList or an other dynamic datastructure:
BufferedReader abc = new BufferedReader(new FileReader(myfile));
List<String> lines = new ArrayList<String>();
while((String line = abc.readLine()) != null) {
lines.add(line);
System.out.println(data);
}
abc.close();
// If you want to convert to a String[]
String[] data = lines.toArray(new String[]{});