Comparable <>和compareTo方法AZ和ZA

Question

Is there a way how to sort String both ways A to Z and Z to A calling same compareTo override method ?

@Override
    public int compareTo(Historial o) {
        String a = this.getName();
        String b = o.getName();


        return a.compareTo(b);//This sorts A-Z
    }

Answer 1

just replace the names of variables its easy

return a.compareTo(b);//This sorts A-Z
return b.compareTo(a);//This sorts Z-A