Java String remove all non numeric characters but keep the decimal separator

Question

Trying to remove all letters and characters that are not 0-9 and a period. I'm using `Character.isDigit()` but it also removes decimal, how can I also keep the decimal?

Accepted Answer

Try this code:

```
String str = "a12.334tyz.78x";
str = str.replaceAll("[^\d.]", "");
```

Now `str` will contain `"12.334.78"`.

Java String remove all non numeric characters but keep the decimal separator

Solution

Problem

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