what is the wrong about base 16 in this code? Is it an error? Please help me.

Question

https://code.sololearn.com/cSHkw20mznqk/?ref=app

Answer 1

https://code.sololearn.com/cSHkw20mznqk/?ref=app

Answer 2

add this between line 59 and 60

if(cha.length()>0)

and inputs should be seperated by newline
example:

15
16

Answer 3

and it should do.....?

Answer 4

so input of
15
16

should output F?

and
15
2

should output 111?

and so on?

Answer 5

help me to fix this

Answer 6

its only give binary results only.

Answer 7

no. i want it to given base. its can be 2, 8 or 16.