Extracting Digits from Strings in Java
In Java, extracting digits from a string can be achieved using various methods. One common approach involves utilizing regular expressions to identify and remove non-digit characters.
Method:
Example:
<code class="java">String str = "123-456-789"; str = str.replaceAll("\D+", ""); System.out.println(str); // Output: 123456789</code>
Note:
This method does not require the installation of any additional libraries as it uses built-in Java features.
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