Answers for "add characters to a string java"

insert string in string java

String newString = originalString.substring(0, index + 1) 
                           + stringToBeInserted 
                           + originalString.substring(index + 1);

java add char

char a = 'a'

insert string in string java

String newString = originalString.substring(0, index + 1) 
                           + stringToBeInserted 
                           + originalString.substring(index + 1);

java add char

char a = 'a'