将字符串电话号码转换为整数 [英] Converting the string phone number to integer

问题描述

我对Java和Android都缺乏经验.我正在尝试检索存储在android手机模拟器的联系人之一中的电话号码.当我成功获取它时，该数字已以字符串形式返回，格式为([phone])".我想将其转换为整数或长整数.我怎样才能做到这一点?如果我使用 Integer.parseInt(String number)，它将返回 NumberFormatException .尝试使用 Long.valueOf(String number)时也失败.那我该怎么办?我想要像没有任何大括号或连字符的"9876543210".

I am fairly inexperienced in Java as well as Android. I am trying to retrieve a phone number stored in one of the contacts of the android phone emulator. While I am successful to fetch it, the number has been returned in a string in a format like "[phone]". I want to convert it to integer or long. How can I do that? If I use Integer.parseInt(String number), it returns a NumberFormatException. Failed while tried using Long.valueOf(String number) too. What should I do then? I want it like "9876543210" without any braces or hyphens.

推荐答案

使用 long 存储数字会更好

   String str="[phone]";
   String stt=str.replaceAll("\\D+","");
   long num= Long.parseLong(stt);
   System.out.println(num);

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