1.

Get all digits from a string in Java

Answer»

To DISPLAY the digits from a STRING, use Regular Expression.

The string (with digits):

12345example

To get the digits use the \\D flag and the replaceAll():

replaceAll("\\D", ""))

The example:

PUBLIC class Example {  public static void main(String[] args) {    // string with digits    String s = "12345example";    System.out.println("Our String = "+s);    // display digits    System.out.println("Get digits from the string = "+s.replaceAll("\\D", ""));  } }

The output displays only the digits:

Our String = 12345example Get digits from the string = 12345


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