backspace lc solution

public class ClassNameHere {
    public static void main(String[] args) {
        String s = "aa#c";
        String t = "ab#c";
        System.out.println(backspaceCompare(s, t));
    }

    public static boolean backspaceCompare(String s, String t) {
        int s_pointer = s.length() - 1, t_pointer = t.length() - 1;
        int skipS = 0, skipT = 0;

        while( s_pointer >= 0 || t_pointer >= 0){

            while(s_pointer>=0){
                // skip
                if(s.charAt(s_pointer)=='#'){
                    skipS+=1;
                    s_pointer-=1;

                }else if(skipS>0){
                    s_pointer-=1;
                    skipS-=1;

                }else{
                    break;
                }
            }
            while(t_pointer>=0){
                //skip
                if(t.charAt(t_pointer)=='#'){
                    skipT+=1;
                    t_pointer-=1;

                }else if(skipT>0){
                    t_pointer-=1;
                    skipT-=1;

                }else{
                    break;
                }
            }

            if(s_pointer>=0&&t_pointer>=0&&s.charAt(s_pointer)!=t.charAt(t_pointer)){
                return false;
            }

            //size
            if((s_pointer>=0)!=(t_pointer>=0)){
                return false;
            }
            s_pointer-=1;
            t_pointer-=1;
        }
        return true;
    }
}