How to replace all characters in a String without using replace() methods , StringBuilder, or String-CodePudding

I have an assignment that requires me to replace all character 'e' with the character '%'.

I'm not allowed to use any other classes like StringBuilder, StringBuffer, and I can't use Arrays or replace() methods.

This is my code:

public String replace(String s, char letter)
{
    String myString = "";
    String myWords = "";

    for (int i = 0; i < s.length(); i  ){

        if (s.charAt(i) != ' ' && s.charAt(i) != letter) {
            
            myString = myString   s.charAt(i);

        } else {

            if (s.charAt(i) == letter){
                myWords  = '%';
            }
            myWords  = myString   " ";
            myString = "";
        
        }
        

    }
    return myWords;

    
}

This is my code so far but it's not giving me the correct output.

Input: Always eating apples
My Output: always %ating %
Correct Output: always %ating appl%s

Any help would be appreciated :) Let me know if you want me to clarify anything in particular sorry if its not clear

CodePudding user response：

Not sure why you are complicating using myWords

public static String replace(String s, char letter)
{
    String myString = "";

    for (int i = 0; i < s.length(); i  ){

        if (s.charAt(i) != letter) {
            myString = myString   s.charAt(i);
        } else {
            if (s.charAt(i) == letter){
                myString = myString   '%';
            }
        
        }
        

    }
    return myString;

    
}