英文:
I'm getting trouble converting String to int while the String is not all numbers
问题
我想将从 TextInput 得到的一些 String 转换为 int，只是我不知道如何去除那些非数字的部分。这里有一个例子：
String text = "My number is 0111-473-8922";
有没有办法去除文本和破折号（基本上是任何非数字的字符），以便我可以将其转换为 int？
提前感谢您的帮助。
英文:
I would like to convert some of the Strings I get from TextInput to int, only I don't know how to remove the parts that are not numbers. Here's an example:
String text = "My number is 0111-473-8922";
Is there a way to remove the text and dashes (basically whatever isn't a number) so I could convert it to int?
Thanks for your help in advance.
答案1
得分: 0
你可以使用简单的正则表达式来解析结果：
String text = "My number is 0111-473-8922";
try {
int number = Integer.parseInt(text.replaceAll("[^\\d]", ""));
System.out.println("number: " + number);
} catch (Exception e) {
System.out.println("error: " + e);
}
英文:
You can use a simple regex and parse the result:
String text = "My number is 0111-473-8922";
try{
int number = Integer.parseInt(text.replaceAll("[^\\d]", ""));
System.out.println("number: " + number);
}catch(Exception e){
System.out.println("error: " + e);
}
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