All Questions
4 questions
0
votes
3
answers
970
views
Reading from a file using ArrayList in Java
I have an assignment that ask me to read from a file, us an ArrayList to organize and declare the numbers, and then calculate the average of those numbers and print them in a new file. I know that I ...
0
votes
2
answers
443
views
Reading and writing a text file in ascending order. ( Small/annoying error- nearly completed)
Collections.sort(orderedStudents, new Comparator<Student>() {
public int compare(Student s1, Student s2) {
return s2.getAggregate().compareTo(s1.getAggregate());
}
...
- 745
1
vote
2
answers
1k
views
Buffered Writer: write an ArrayList to a file
we want to write the content of an ArrayList (images with a longitude and latitude) to a file (.csv or txt, doesn't matter).
We know that there is something wrong with the bw.write(), but we didn't ...
- 39
0
votes
1
answer
306
views
ArrayList becomes null while writing to file
My arraylist<"obj"> becomes null after trying to write to a file.
In WriteToFile class arraylist info becomes null after executing the last line
writer.write(info.get(i).getIpadd().toString()...
- 23