public static void main(String[] args) throws JSONException {
    String json = "{status:2,result:[{company_name:'科大',company_id:1}, " +
        "{company_name:'國創',company_id:5}," +
        "{company_name:'新窩',company_id:7}]} ";


    JSONObject object = new JSONObject(json);

    int status = object
 
.getInt("status");
    System.out.println(status);

    JSONArray array = object.getJSONArray("result");

    for(int i=0;i<array.length();i++) {
        JSONObject obj = array.getJSONObject(i);
        String name = obj.getString("company_name");
        int id = obj.getInt("company_id");
        System.out
 
.println(name+","+id);
    }
}

小技巧：遇到實體就JSONObject，遇到陣列就JSONArray。