CODEWITHSUNDEEP
javasplit
FarSh018
FarSh018

Reputation: 875

Splitting a string on the double pipe(||) using String.split()

I'm trying to split the string with double pipe(||) being the delimiter.String looks something like this:

String str ="[email protected]||[email protected]||[email protected]";

i'm able to split it using the StringTokeniser.The javadoc says the use of this class is discouraged and instead look at String.split as option.

StringTokenizer token = new StringTokenizer(str, "||");

The above code works fine.But not able to figure out why below string.split function not giving me expected result..

String[] strArry = str.split("\\||");

Where am i going wrong..?

Upvotes: 5

Views: 15990

Answers (6)

Daksharaj kamal
Daksharaj kamal

Reputation: 614

For this you can follow two different approaches you can follow whichever suites you best:

Approach 1:

By Using String SPLIT functionality

String str = "a||b||c||d";
String[] parts = str.split("\\|\\|");

This will return you an array of different values after the split:

parts[0] = "a"
parts[1] = "b"
parts[2] = "c"
parts[3] = "d"

Approach 2:

By using PATTERN and MATCHER

import java.util.regex.Matcher;
import java.util.regex.Pattern;

String str = "a||b||c||d";

Pattern p = Pattern.compile("\\|\\|");
Matcher m = p.matcher(str);

while (m.find()) {
    System.out.println("Found two consecutive pipes at index " + m.start());
}

This will give you the index positions of consecutive pipes:

parts[0] = "a"
parts[1] = "b"
parts[2] = "c"
parts[3] = "d"

Upvotes: 0

passionatedevops
passionatedevops

Reputation: 533

Try this 

String yourstring="Hello || World";
String[] storiesdetails = yourstring.split("\\|\\|");

Upvotes: -1

Gijs Overvliet
Gijs Overvliet

Reputation: 2691

String.split() uses regular expressions. You need to escape the string that you want to use as divider.

Pattern has a method to do this for you, namely Pattern.quote(String s).

String[] split = str.split(Pattern.quote("||"));

Upvotes: 17

1218985
1218985

Reputation: 8022

You can try this too...

String[] splits = str.split("[\\|]+");

Please note that you have to escape the pipe since it has a special meaning in regular expression and the String.split() method expects a regular expression argument.

Upvotes: 0

BlackJoker
BlackJoker

Reputation: 3191

try this bellow :

String[] strArry = str.split("\\|\\|");

Upvotes: 4

gtgaxiola
gtgaxiola

Reputation: 9331

You must escape every single | like this str.split("\\|\\|")

Upvotes: 16

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