CODEWITHSUNDEEP
java
Rahul Goyal
Rahul Goyal

Reputation: 121

How to replace a specific character from a string given starting index

I am given a string = "SUBTOTAL(9,L7:L17)"

I want to replace all L with 2 in given string but L from SUBTOTAL should not be changed or replacing all L with 2 inside brackets.

I have tried with replaceAll() in java method but its replacing all L with 2 resulting "SUBTOTA2(9,27:217)" which is wrong

What i want like this Result will be like : "SUBTOTAL(9,27:217)"

Upvotes: 1

Views: 52

Answers (1)

Jan Gassen
Jan Gassen

Reputation: 3534

You can split your string into two substrings based on the first occurence of (, then replace your character on the second part and recombine the result:

String string = "SUBTOTAL(9,L7:L17)";
int replaceStartIndex = string.indexOf('(');

System.out.println(string.substring(0, replaceStartIndex) 
  + string.substring(replaceStartIndex).replaceAll("L", "2"));

Outputs SUBTOTAL(9,27:217)

Upvotes: 2

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