Wsrtjtyk

I have the below message:

{1:F01ANZBDEF0AXXX0509036846}{2:I103ANZBDEF0XXXXN}{4::20:TEST000001:23B:CRED:32A:141117EUR0,1:33B:EUR1000,00:50A:ANZBAU30:59:ANZBAU30:71A:SHA-}{5:{CHK:1DBBF1D81EE1}{TNG:}}

And i want it to be converted like below, with whitespaces in block 4 (which is

{4: :20:TEST000001 :23B:CRED :32A:141117EUR0,1 :33B:EUR1000,00 :50A:ANZBAU30 :59:ANZBAU30 :71A:SHA -}

{1:F01ANZBDEF0AXXX0509036846}{2:I103ANZBDEF0XXXXN}{4: :20:TEST000001 :23B:CRED :32A:141117EUR0,1 :33B:EUR1000,00 :50A:ANZBAU30 :59:ANZBAU30 :71A:SHA -}{5:{CHK:1DBBF1D81EE1}{TNG:}}

I tried to extract using groups and then apply regular expression. But, i was unsuccessfully. Unable to find the error i am making.

public static void StringReplace() {

    String data = "{1:F01ANZBDEF0AXXX0509036846}{2:I103ANZBDEF0XXXXN}{4::20:TEST000001:23B:CRED:32A:141117EUR0,1:33B:EUR1000,00:50A:ANZBAU30:59:ANZBAU30:71A:SHA-}{5:{CHK:1DBBF1D81EE1}{TNG:}}";



    Pattern pat = Pattern.compile("(({1:\w+})({2:\w+})({4::\d+:\w+:\d+.:\w+:\d+.:\d+\w+,\d:\d+.:\w+,\d+:\d+.:\w+:\d+:\w+:\d+.:\w+-})({5:{\w+:.\w+}{\w+.}}))");



    Matcher m = pat.matcher(data);



    if(m.matches()) {

        System.out.println(m.group(0));

    }

}

Thanks in Adavance

You have just matched the string and simply printed it but havn't put logic of introducing a space in between. You need to add the logic of introducing space in block 4.

Looking at the expected output of your block 4, you can first catch the block 4 using this regex,

(.*?)(\{4.*?\})(.*?)

and then replace colon with a space colon ( :) in group 2 content which you call as block 4. I see you are not introducing space with every colon instead just for colon which are followed by 2-3 characters followed by colon. I have implemented the logic accordingly in my replaceAll() method.

Here is the modified java code,

public static void StringReplace() {

    String data = "{1:F01ANZBDEF0AXXX0509036846}{2:I103ANZBDEF0XXXXN}{4::20:TEST000001:23B:CRED:32A:141117EUR0,1:33B:EUR1000,00:50A:ANZBAU30:59:ANZBAU30:71A:SHA-}{5:{CHK:1DBBF1D81EE1}{TNG:}}";



    Pattern pat = Pattern.compile("(.*)(\{4.*?\})(.*)");

    Matcher m = pat.matcher(data);



    if (m.find()) {

        String g1 = m.group(1);

        String g2 = m.group(2).replaceAll(":(?=\w{2,3}:)", " :");

        String g3 = m.group(3);

        System.out.println(g1 + g2 + g3);

    } else {

        System.out.println("Didn't match");

    }

}

This prints the following output as you expect,

{1:F01ANZBDEF0AXXX0509036846}{2:I103ANZBDEF0XXXXN}{4: :20:TEST000001 :23B:CRED :32A:141117EUR0,1 :33B:EUR1000,00 :50A:ANZBAU30 :59:ANZBAU30 :71A:SHA-}{5:{CHK:1DBBF1D81EE1}{TNG:}}