how to delete last character from string in java code example

Example 1: java remove last character from string

String s = "Hello Worlds";
String end = "";
end = s.substring((0, s.length()-1));

Example 2: remove last character from string

public String method(String str) {
    if (str.charAt(str.length()-1)=='x'){
        str = str.replace(str.substring(str.length()-1), "");
        return str;
    } else{
        return str;
    }
}