未报告的异常MalformedURLException和未报告的异常IOException

Question

我正在尝试创建一个使用txt文件的android应用，将文件用“;”分割，创建包含txt部分的字符串数组，然后调用电报api并将每一部分作为单独的消息发送至聊天室。 我收到此错误：

error: unreported exception MalformedURLException; must be caught or declared to be thrown

error: unreported exception IOException; must be caught or declared to be thrown

我是Java的完全新手，我只是从网络上学习并结合在一起。如您所知，我不完全了解代码。 特别是这部分：

Scanner scanner = new Scanner("app/src/main/java/com/example/myapplication/pasteall.txt");
        String content = scanner.useDelimiter("\\A").next();
        String[] posts = content.split("\\|");

代码如下：

String apiToken = "";
        String chatId = "";
        String urlString = "https://api.telegram.org/bot"+apiToken+"/sendMessage?chat_id="+chatId+"&text=%s";

Scanner scanner = new Scanner("app/src/main/java/com/example/myapplication/pasteall.txt");
        String content = scanner.useDelimiter("\\A").next();
        String[] posts = content.split("\\|");

int numberOfPosts = posts.length;
        int i = 0;
        for (i = 0; i < numberOfPosts; i++)  {
            urlString = String.format(posts[i]);
            URL url = new URL(urlString);
            URLConnection conn = url.openConnection();
                }