java replace a character at end of string
// Algorithm to replace a specific character from end of string.
// From: 10.000.000.00
// To: 10.000.000,00
String cash = "10.000.000.00";
StringBuilder temp1 = new StringBuilder(cash);
StringBuilder temp2 = new StringBuilder(temp1.reverse().toString().replaceFirst("[.]", ","));
System.out.println(temp2.reverse());java string replace character at position
String str = in.nextLine(); //Original String
char cr = in.next().charAt(0); // character to replace
int index = in.nextInt(); // Index where replaced
str = str.substring(0, index) + cr + str.substring(index + 1);// modified stringCopyright © 2021 Codeinu
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