How to Remove Non-Numeric Characters from a String While Preserving Decimal Separators?

Remove Non-Numeric Characters from String while Preserving Decimal Separator

In this code challenge, the goal is to remove all non-numeric characters from a string while preserving the decimal separator. This entails eliminating all characters except digits (0-9) and the decimal point (.).

To achieve this, the suggested code employs the String.replaceAll() method with a regular expression pattern. The pattern "¹" matches any character that is not a digit or a decimal point. By replacing all such characters with an empty string, only the desired elements remain in the string.

For instance, if the input string is "a12.334tyz.78x", the code would remove all letters ("a", "t", "y", "z") and other characters ("x") to produce the modified string "12.334.78". This maintains the required numeric data while adhering to the preservation of the decimal points.

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