Tried much but showing wrong answer

i know my code is wrong but don’t know how to correct it

the logic here is fairly simple. Just iterate from i = 0 to str.length() - 2 and take the difference and append it to the answer.

@saurabh_singhCmn
that is where i am struck
difference will be integer and how to append integer to the string ??

Use Integer.toString(yourInteger) function

@saurabh_singhCmn
ek example deke bata do bhai;

int a = 10;
String ans = “”;
ans += “anuj”;
ans += Integer.toString(a);
System.out.println(ans);

prints anuj10

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bhai tumne toh yr doubt create kr diye

  1. yeh sab mere course m h kahi ??
  2. System.out.println(ans); bhai yeh function kese kaam krta h

Are you from the C++ course

yes, i have c++ launchpad
but till now i have not read these function in the course

Okay, I’m really sorry for the issue. I thought you were from the Java courses. Anyways, for C++ you can simply cout first the string, then put<< and then write the number.