public static void main(String[] args) {

        String s = "3/美国2/日本4/韩国1/中国7/俄罗斯11/澳大利亚";

        String[] a = s.split("[\\d]+/");
        String[] b = s.split("/[\u4e00-\u9fa5]+");

        for (int i = 0; i < b.length; i++) {
            System.out.println(b[i] + ":" + a[i + 1]);
        }
    }