[FIXED] Replace a String between two Strings and Boundary words also

Issue

I want to replace string variable text between two words and replace the boundary words themselves. Similar to this question, however I want to replace between &firstString and &endString with newText .

href="https://stackoverflow.com/questions/10403639/replace-a-string-between-two-strings">Replace a String between two Strings

Input:

abcd&firstString={variableText}&endStringxyz

Output:

abcdnewTextxyz

I could just do two str.replaceAll(&firstString) and str.replaceAll(&secondString). However, is it possible to do in one line of code changing maybe this code solution?

String newstr = str.replaceAll("(&firstString=)[^&]*(&endString=)", "$1foo$2");

Solution

String replacement = "newText";
String text = "abcd&firstString={currentText}&secondStringxyz";
String result = text.replaceAll("&firstString=\\{.*?\\}&secondString",replacement);

System.out.println(result);

prints

abcdnewTextxyz

Answered By - WJS
Answer Checked By - Katrina (JavaFixing Volunteer)