CODEWITHSUNDEEP
javastringreplace
Steve
Steve

Reputation: 65

Replacing the consonants in a string

I'm having trouble writing down the code for this function.

Replacing the consonants

/** Return a string that is s but with all lowercase consonants (letters of
 * the English alphabet other than the vowels a, e, i, o, u) replaced with
 * _, and all uppercase consonants replaced with ^.
 *
 * Examples: For s = "Minecraft" return "^i_e__a__".
 *           For s = "Alan Turing" return "A_a_ ^u_i__".

This is what I have done so far:

String consonants = "bcdfghjklmnpqrstvwxyz";
for(int j = 0; j < consonants.length(); j++ ){
    int start = 0;
    if s.charAt(start) == consonants( I am unsure to tell it to look through the string I made)
        s.charAt(start).replace(s.substring(start,1), ("_"));
        if s.charAt(start) == s.substring(start,start+1).ToUpperCase(){
            s.charAt(start) = "'";
        }
    }
}

Upvotes: 1

Views: 3375

Answers (2)

657784512
657784512

Reputation: 613

String myName = "domanokz";
myName.charAt(4) = 'x';

If that's not what you're looking for:

String myName = "domanokz";
String newName = myName.substring(0,4)+'x'+myName.substring(5);

Or you can use a StringBuilder:

StringBuilder myName = new StringBuilder("domanokz");
myName.setCharAt(4, 'x');

System.out.println(myName);

Upvotes: -2

Avinash Raj
Avinash Raj

Reputation: 174776

You could use negative lookahead based regex or you need to manually write all the consonants.

String s = "Minecraft";
String m = s.replaceAll("(?![aeiouAEIOU])[a-z]", "_").replaceAll("(?![aeiouAEIOU])[A-Z]", "^");
System.out.println(m);

Output:

^i_e__a__

Upvotes: 3

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