Question

How do i use replace(char, char) to replace all instances of character “b” with nothing.

For example:

Hambbburger to Hamurger

EDIT: Constraint is only JDK 1.4.2, meaning no overloaded version of replace!

Answer 1

There’s also a replaceAll function that uses strings, note however that it evals them as regexes, but for replacing a single char will do just fine.

Here’s an example:

String meal = "Hambbburger";

String replaced = meal.replaceAll("b","");

Note that the replaced variable is necessary since replaceAll doesn’t change the string in place but creates a new one with the replacement (String is immutable in java).

If the character you want to replace has a different meaning in a regex (e.g. the . char will match any char, not a dot) you’ll need to quote the first parameter like this:

String meal = "Ham.bur.ger";

String replaced = meal.replaceAll(Pattern.quote("."),"");