Capitalizing last letter in Java using String methods

Question

how can i capitalize the last letter of a String? Is there a method in the String Class to do this?

I'm practicing with some exercise, and i was asked to do this with a method.

An idea might be to search for capitalizing the *first* letter. Then look what you have to modify. — Willem Van Onsem, Mar 31 '17 at 15:23
Your requirement is vague: do you mean capitalize the last character in the string (if that happens to be a letter), or find the last letter in the string and capitalize it. For instance, should `"az0"` remain as `"az0"`, or should it become `"aZ0"`? — Andy Turner, Mar 31 '17 at 15:40

score 0 · Answer 1 · answered Mar 31 '17 at 15:30

0

No there is not. but you can write one yourself.

 public String capitalizeLastLetter(String word) {
    //null check
    int length = word.length();
    String capitalizedLetter = word.substring(length - 2, length - 1).toUppercase();
    return word.substring(0, length - 2) + capitalizedLetter;
}

answered Mar 31 '17 at 15:30

Zildyan

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Is this still a String : String capitalizedLetter = word.substring(length - 2, length - 1).toUppercase(); – kourouma_coder Mar 31 '17 at 15:34
Of course it is.. substring returns a string even if it's one letter – Zildyan Mar 31 '17 at 15:35
1

@Zildyan or zero letters. But you can do this more efficiently with `Character.toUpperCase(word.charAt(length - 1))`, which avoids creating 2 strings. – Andy Turner Mar 31 '17 at 15:37
True I didn' recall that.. – Zildyan Mar 31 '17 at 15:39

Capitalizing last letter in Java using String methods

1 Answers1