how to remove string last / code example

Example 1: remove last character from string java

private static String removeLastChar(String str) {
    return str.substring(0, str.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;
    }
}