Dropbox Interview Question for Backend Developers


Country: United States




Comment hidden because of low score. Click to expand.
0
of 0 vote

To check whether 'aaaaab\naaaaa' is exists in given , need to compare file with 'aaaaab\\naaaaa' beacuse while reading the file \n will be treated as\\n so need to change search string in that way.
if the file is too big to put into memory you can use File.Readsline() which will read line by line from the given file(c#)
foreach (string line in File.ReadLines(@"Filepath"))

- Srinivas March 10, 2017 | Flag Reply
Comment hidden because of low score. Click to expand.
-1
of 1 vote

1)
private void ReadTxtFile()
{
string filePath = string.Empty;
filePath = openFileDialog1.FileName;
if (string.IsNullOrEmpty(filePath))
{
using (StreamReader sr = new StreamReader(filePath))
{
String line;
while ((line = sr.ReadLine()) != null)
{
FormatData(line);
}
}
}
}

void FormatData(string line)
{
if (line.contains('aaaaab\naaaaa'))
{
globalBool=true;
}
}

2. By checking the character before and after the \n, which needs to be b before and a after if not "b\na" then it is a new line

3. Using stringreader will solve this

- .netGUY March 10, 2017 | Flag Reply


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