Increase a char value by one

Question

I have an app with an EditText and a button named \"forward\". All I want is just when I type \"a\" in the EditText and click the button, the word \"b\

Answer 1

Try this one

String convertString = getIncrementStr("abc");
public static String getIncrementStr(String str){
    StringBuilder sb = new StringBuilder();
    for(char c:str.toCharArray()){
        sb.append(++c);
    }
    return sb.toString();
}