public static void main(String[] args) {
        String xml = "<xxxx><>ok</><>nono</></>";
        char[] xChar = xml.toCharArray();
        String xString="";
        int flag = 0;
        for(int j = 0; j < xChar.length; j++){
            System.out.println(xChar[j]);
        }
        for(int i = 0; i < xChar.length; i++){
            if(xChar[i]=='>'){
                flag = 1;
            }
            if(flag == 1 && xChar[i] != '<' && xChar[i] != '>'){
                xString += xChar[i];
            }
            if(xChar[i] == '<'){
                flag = 0;
            }
        }
        System.out.println("目標" + xString);
    }