Increment String chracter

[questionit]

Hi Experts

how to implement this in Java . example problem:

1) Input string e.g "HAL"
2) Output IBM ( each letter in string replaced with next character whatever comes in ABC...

Thanks

[horace1]

Hi Experts

how to implement this in Java . example problem:

1) Input string e.g "HAL"
2) Output IBM ( each letter in string replaced with next character whatever comes in ABC...

Thanks

you could use a StringBuffer
http://java.sun.com/j2se/1.3/docs/api/java/lang/StringBuffer.html

which is similar to a String but you can change the contents, e.g.

  StringBuffer s=new StringBuffer("HAL");
  s.setCharAt(0,(char)(s.charAt(0)+1));
 

incremenets the first character of the string H to I so it becomes
IAL
you could use a loop to increment all the characters

[azar04]

if i am pass "ZAL" Output is "[AL"
It is wrong.

[chaarmann]

Please try to understand the example given. It is not wrong, but it shows you how to replace the first character only. Just do the same for the second and third character. He asks you to do it with a loop yourself.

Another problem is: what should come after "Z"? You say "next character" which is "[" and correct. But if you mean "next letter" then you have define what should happen with the last letter:
1.) Should "Z" stay "Z" because here is no next letter?
2.) Should you start from the beginning of the uppercase letters? that means "A"
3.) Should you start from the beginning of the lowercase letters? that means "a"? (second series of letters)
4.) Should you start with language specific letters? In Germany in many sorting application you would start with all the addition letters (German umlauts like "Ä", "Ö", "ß").
5.) Or should the german umlauts follow directly inside the alphabet, like in the telephone book sorting? (like "Ä" follows of "A" or "Ö" follows of "O". Just think of all the collation orders (of letters) where you have to pick one, for example in the mySql database.
6.) If you really mean "character" instead of "letter" as you have written it, then you must define the character set. In other charater sets there are characters follwing "Z" which are different from ASCII character "[". Just think of the EBCDIC character set...