Split Java String

Question

Title seems to be simple. But I don't get a good Idea. This is the situation

I have String like this in my Java program

String scz="3282E81WHT-22/24";

I want to split the above string into 3 Strings, such that

first string value should be 3282e81,

Next string should be WHT(ie, the String part of above string and this part is Always of 3 Characters ),

Next String value should be 22/24 (Which will always occur after -)

In short

String first= /* do some expression on scz And value should be "3282e81" */;
String second= /* do some expression on scz And value should be "WHT" */;
String third= /* do some expression on scz And value should be "22/24" */;

Input can also be like

scz="324P25BLK-12";

So 324P25 will be first String, BLK will be second (of 3 Characters). 12 will be third ( After - symbol )

How to solve this?

Is the WHT part is fixed? I mean, do you want to split by WHT or will there be any other characters as well? — MD Sayem Ahmed
– MD Sayem Ahmed, Commented Aug 20, 2013 at 4:45
You need to take a step backwards. Why is the first element 3282E81 second element WHT and third element 22/24?. Only when you know the rules can you implement them. — BevynQ
– BevynQ, Commented Aug 20, 2013 at 4:47
No. It will change. But that part will be String. It can also be like this scz=324P25BLK-12 So 324P25 will be first String, BLK will be second. 12 will be third — iCode
– iCode, Commented Aug 20, 2013 at 4:48
@BevynQ I am getting input like that from an XML file. in one tag. I need to split it into 3 values like I said in question — iCode
– iCode, Commented Aug 20, 2013 at 4:50

prasanth · Accepted Answer · 2013-08-20 05:00:53Z

4

You can use a regex like this (\d+[A-Z]\d+)([A-Z]+)-([/\d]+) and using Matcher.group(int) method you can get your string splitted into three groups.

Code snippet

String str = "3282E81WHT-22/24";
//str = "324P25BLK-12";
Pattern pattern = Pattern.compile("(\\d+[A-Z]\\d+)([A-Z]+)-([/\\d]+)");
Matcher match = pattern.matcher(str);
System.out.println(match.matches());
System.out.println(match.group(1));
System.out.println(match.group(2));
System.out.println(match.group(3));

Output

true
3282E81
WHT
22/24

edited Aug 20, 2013 at 5:00

answered Aug 20, 2013 at 4:54

prasanth

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Comments

Hybrid Developer · Accepted Answer · 2013-08-20 04:56:59Z

2

Use this to split the entire string in to two

String[] parts = issueField.split("-");
String first = parts[0];
String second= parts[1];

Use this to split the first string into two

if (first!=null && first.length()>=3){  
   String lastThree=first.substring(first.length()-3);
}

answered Aug 20, 2013 at 4:56

Hybrid Developer

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Comments

Tarsem Singh · Accepted Answer · 2013-08-20 05:08:26Z

1

if your String's Second part (WHT) etc will always be of 3 Characters then following code will surely help you

String scz = "3282E81WHT-22/24";

            String Third[] = scz.split("-");
            String rev = new StringBuilder(Third[0]).reverse().toString();
            String Second=rev.substring(0,3);
            String First=rev.substring(3,rev.length());

            // here Reverse your String Back to Original
            First=new StringBuilder(First).reverse().toString();
            Second=new StringBuilder(Second).reverse().toString();

            System.out.println(First + "  " + Second + "  " + Third[1]);

edited Aug 20, 2013 at 5:08

answered Aug 20, 2013 at 4:56

Tarsem Singh

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1 Comment

iCode Over a year ago

I'm getting output like this 18E2823 THW 22/24 the first two are reversed

Sohail Anjum · Accepted Answer · 2013-08-20 04:49:51Z

1

You can use subString() method to get this goals. subString has numbers of overloads.

for first string

String first=scz.subString(0,6);
String second=scz.subString(7,9);

answered Aug 20, 2013 at 4:49

Sohail Anjum

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1 Comment

iCode Over a year ago

But this is based on length. The String value length may change

Akash KC · Accepted Answer · 2013-08-20 05:14:19Z

1

You can use following regex to take out the above type string:

\d+[A-Z]\d{2}|[A-Z]{3}|(?<=-)[\d/]+

In Java, you can use above regex in following way:

  Pattern pattern = Pattern.compile("\\d+[A-Z]\\d{2}|[A-Z]{3}|(?<=-)[\\d/]+");
  Matcher matcher = pattern.matcher("3282E81WHT-22/24");
  while (matcher.find()) {
        System.out.println(matcher.group());
  }

Output:

3282E81
WHT
22/24

edited Aug 20, 2013 at 5:14

answered Aug 20, 2013 at 4:51

Akash KC

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Comments

freemann098 · Accepted Answer · 2013-08-20 04:57:44Z

0

You could us a char array instead of a string so you can access specific characters withing the array. Example

char scz[] = "3282E81WHT-22/24";

and access the separate characters just by specifying the place in which the array you want to use.

answered Aug 20, 2013 at 4:57

freemann098

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Comments

Ruchira Gayan Ranaweera · Accepted Answer · 2013-08-20 05:04:03Z

0

You can try this

       String scz="3282E81WHT-22/24";
       String[] arr=scz.split("-");
       System.out.println("first: "+arr[0].substring(0,7));
       System.out.println("second: "+arr[0].substring(7,10));
       System.out.println("third: "+arr[1])

answered Aug 20, 2013 at 5:04

Ruchira Gayan Ranaweera

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Comments

MD Sayem Ahmed · Accepted Answer · 2013-08-20 05:05:19Z

Check out my solution -

class Main {
    public static void main(String[] args) {
            String first = "";
            String second = "";
            String third = "";

            String scz="3282E81WHT-22/24";
            String[] portions = scz.split("-");
            if (portions.length > 1) {
                    third = portions[1];
            }

            String[] anotherPortions = portions[0].split("[a-zA-Z]+$");
            if (anotherPortions.length > 0) {
                    first = anotherPortions[0];
            }

            second = portions[0].substring(first.length());

            System.out.println(first);
            System.out.println(second);
            System.out.println(third);
    }
}

Live Demo.

JWqvist · Accepted Answer · 2013-08-20 05:15:01Z

0

String scz="3282E81WHT-22/24";
String[] array = scz.split("-");
String str1 = (String) array[0].subSequence(0, 7);
String str2 = array[0].substring(7);

Then the split will be in this order :)

str1
str2
array[1]

edited Aug 20, 2013 at 5:15

answered Aug 20, 2013 at 4:56

JWqvist

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Comments

Shakeeb Ayaz · Accepted Answer · 2013-08-20 06:03:17Z

0

if the length of string is fixed for scz, first,second and third the you can use

  String first=scz.subString(0,6);
  String second=scz.subString(7,9);
  String third=scz.subString(10,scz.length());

edited Aug 20, 2013 at 6:03

answered Aug 20, 2013 at 4:52

Shakeeb Ayaz

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