CODEWITHSUNDEEP
javaandroidjsonbufferedreader
Mayank Khursija
Mayank Khursija

Reputation: 83

BufferedReader While Reading Json Data

Why do we add \n while reading JSON data with a BufferedReader?

BufferedReader reader = new BufferedReader(new InputStreamReader(is));
while((line = reader.readLine())!=null){
    sb.append(line + "\n");
}

Upvotes: 3

Views: 1688

Answers (1)

Jon Skeet
Jon Skeet

Reputation: 1502176

You're not adding a \n - you're putting a line break back which readLine() effectively swallowed. For example, if your text file initially consists of 5 lines:

line1
line2
line3
line4
line5

then reader.readLine() will return (in successive calls) "line1", "line2", "line3", "line4", "line5"... without the line ending at which BufferedReader detected the end of the line.

So if you just had sb.append(line), you'd end up with a StringBuilder containing:

line1line2line3line4line5

Having said that, the code seems somewhat pointless - it's really just normalizing the line breaks. Unless you actually need that, you might as well just use call read instead of readLine() and copy the text that way...

Upvotes: 7

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