How to replace repetitive pattern in a string in Java?

Question

I have intelliJ running with Java/REST API and having trouble removing and replacing string in a certain format.

Response string :

{"isSuccess":[{"frequency":}]}]}}{"isSuccess":[{"frequency":}]}]}}{"isSuccess":<testData>[{"frequency":<testData>}]}]}}

Expected string :

[{"frequency":}]},{"frequency":<testData>}]},{"frequency":<testData>}}]}]}}

Actual String :

[{"frequency":<testData>}]}]}}[{"frequency":<testData>}]}]}}[{"frequency":"<testData>}]}]}}

Code :

public static String getResponseString(String response){
        String getIDErrorCodeString = response.split("\\[")[0];                 
        String getStringWithoutIDErrorCode = response.replaceAll(Pattern.quote(getIDErrorCodeString), "");
        String getStringwithBracket = "}]}]" + getStringWithoutIDErrorCode + "}}[{";

        String actualResults = getStringWithoutIDErrorCode.replaceAll(Pattern.quote(getStringwithBracket), ",");

        return actualResults;
}

The original string had the }}[{ in the beginning of the line which got removed in the actual results but still pattern is not recognizing and finding the correct string to replace not just in the beginning but in the entire string. Anyone knows how to do this?

@Bubbles so you need to feed the Response string and remove the }}[{ characters from it right ? — newlearner
– newlearner, Commented Nov 9, 2023 at 16:43
Yes but not all }]}]}}[{ needs to be replaced. At the end we need to keep it. So how do I replace it only in the middle ? — Bubbles
– Bubbles, Commented Nov 9, 2023 at 16:46

Reilas · Accepted Answer · 2023-11-09 17:47:29Z

0

Start by removing all occurrences of {"isSuccess":<testData>.

s = s.replace("{\"isSuccess\":<testData>", "");

Then, replace ]}}[, with ,.

s = s.replace("]}}[", ",");

And finally, insert a }, at n − 6.

s = s.substring(0, s.length() - 6) + '}' + s.substring(s.length() - 6);

Output

[{"frequency":<testData>}]},{"frequency":<testData>}]},{"frequency":<testData>}}]}]}}

answered Nov 9, 2023 at 17:47

Reilas

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Comments

Bubbles · Accepted Answer · 2023-11-14 20:47:01Z

0

It was very simple than I wrote originally,

public static String getResponseString(String response){
        String getIDErrorCodeString = response.split("\\[")[0];                  
        
        String getStringWithoutIDErrorCode = response.replaceAll(Pattern.quote(getIDErrorCodeString), "");
        String actualResults = getStringWithoutIDErrorCode.replaceAll("]}}\\[", ",");

    return actualResults;

answered Nov 14, 2023 at 20:47

Bubbles

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