string字符串转数组，A[i]数组转数字

//字符串转数组
       String a = "1,2,3,4,5";
        String[] A = a.split(",");
        for (String s : A) {
            System.out.println(s);
        }
        
        System.out.println("-----------------------------------------------");
//数组转数字
        int resulet = 0;
        for (int i = 0; i < A.length; i++) {
            int c=Integer.parseInt(A[i]);
            resulet=resulet+c;
        }
        System.out.println(resulet);
    }