CODEWITHSUNDEEP
javastringsplit
user3722194
user3722194

Reputation: 233

Splitting a string by value between quotation marks in Java

I'm reading in a file in Java and want to split each line by the value inside quotation marks. For example, a line would be...

"100","this, is","a","test"

I would like the array to look like..

[0] = 100
[1] = this, is
[2] = a
[3] = test

I normally split by comma, but since some of the fields include a comma (position 1 in the example above) it's not really suitable.

Thanks.

Upvotes: 6

Views: 3183

Answers (5)

Nabin
Nabin

Reputation: 11776

You can do the following

    String yourString = "\"100\",\"this, is\",\"a\",\"test\"";
    String[] array = yourString.split(",\"");
    for(int i = 0;i<array.length;i++)
        array[i] = array[i].replaceAll("\"", "");

Finally array variable will be the desired array

Output:

    100
    this, is
    a
    test

Upvotes: 2

ControlAltDel
ControlAltDel

Reputation: 35011

Here's one simple way:

String example = "\"test1, test2\",\"test3\"";
int quote1, quote2 = -1;
while((quote2 != example.length() - 1) && quote1 = example.indexOf("\"", quote2 + 1) != -1) {
  quote2 = example.indexOf("\"", quote1 + 1);
  String sub = example.substring(quote1 + 1, quote2); // will be the text in your quotes
}

Upvotes: 2

user2336315
user2336315

Reputation: 16067

Here's a way using a regex.

public static void main (String[] args) {
    String s = "\"100\",\"this, is\",\"a\",\"test\"";
    String arr[] = s.split(Pattern.quote("\"\\w\"")));
    System.out.println(Arrays.toString(arr));
}

Output:

["100","this, is","a","test"]

What it does is matches:

 \" -> start by a "
  \\w -> has a word character
  \" -> finish by a "

I don't know what kind of values you have, but you can modify it as you need.

Upvotes: 1

ortis
ortis

Reputation: 2223

Quick and dirty, but works:

    String s = "\"100\",\"this, is\",\"a\",\"test\"";
    StringBuilder sb  = new StringBuilder(s);
    sb.deleteCharAt(0);
    sb.deleteCharAt(sb.length()-1);
    String [] buffer= sb.toString().split("\",\"");
    for(String r : buffer)
        System.out.println(r); code here

Upvotes: 0

Mena
Mena

Reputation: 48404

You can split it the following way: 

String input = "\"100\",\"this, is\",\"a\",\"test\"";
for (String s:input.split("\"(,\")*")) {
    System.out.println(s);
}

Output

100
this, is
a
test

Note The first array element will be empty.

Upvotes: 3

Related Questions