fork download 
  1. /* package whatever; // don't place package name! */
  2.  
  3. import java.util.*;
  4. import java.lang.*;
  5. import java.io.*;
  6.  
  7. /* Name of the class has to be "Main" only if the class is public. */
  8. class Ideone
  9. {
  10. 		public static void main(String[] args) {
  11. 		char[] digits = getDigits(new char[] { '2', 'A', '3' });
  12. 		for (char c : digits) {
  13. 			System.out.println(c);
  14. 		}
  15. 	}
  16.  
  17. 	public static char[] getDigits(char[] charArray) {
  18. 		int arrayLength = charArray.length;
  19. 		char[] toReturnDigits = new char[arrayLength];
  20. 		int index = 0;
  21. 		for (int i = 0; i < arrayLength; i++) {
  22. 			if (/*Character.isDigit(charArray[i])*/charArray[i] >= 48 && charArray[i] <= 57) {
  23. 				toReturnDigits[index++] = charArray[i];
  24. 			}
  25. 		}
  26. 		return toReturnDigits;
  27. 	}
  28. }
Success #stdin #stdout 0.08s 381248KB
comments (?)
stdin 
Standard input is empty
stdout 
2
3
https://ideone.com/JnOPzD
language:
Java (HotSpot 12)
created:
12 years ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!