How do i remove digits from a String

Question

Basically my questions is how can i remove the digits from a string that is being inputted Thanks for helping me as well

Example:

700N

N

Naive approach: loop over every character of the string. If it is not a number, add it to the result string. — domsson, May 13 '20 at 05:42
Or maybe this? [Java: removing numeric values from string](https://stackoverflow.com/questions/17516049/java-removing-numeric-values-from-string) — domsson, May 13 '20 at 05:45

score 2 · Answer 1 · answered May 13 '20 at 05:42

2

Use String.replaceAll() method:

str.replaceAll("[0123456789]","");

answered May 13 '20 at 05:42

TaQuangTu

score 2 · Answer 2 · answered May 13 '20 at 05:43

2

You can use replaceAll

    String st1 = "700N";
    st1 = st1.replaceAll("\\d+", "");
    System.out.println(st1);

output

answered May 13 '20 at 05:43

Scary Wombat

score 2 · Answer 3 · answered May 13 '20 at 05:43

2

The best way I could come up with :

String input ="700N";
String output= input.replaceAll("\\d","");

The regex \\d means digit.

answered May 13 '20 at 05:43

Omid.N