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  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) throws java.lang.Exception
  11.     {
  12.         String string = "123hh h3ll0 w0rld";
  13.  
  14.         int count = 0;
  15.         boolean inDigits = false;
  16.         for (int i = 0; i < string.length(); i++)
  17.         {
  18.             char c = string.charAt(i);
  19.  
  20.             if (Character.isDigit(c)) {
  21.             	if (!inDigits) count++;
  22.             	inDigits = true;
  23.             } else {
  24.             	inDigits = false;
  25.             }
  26.         }
  27.  
  28.         System.out.println(count);
  29.  
  30.     }
  31. }
Success #stdin #stdout 0.04s 711168KB
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4
https://ideone.com/PBxL7z
language:
Java (HotSpot 12)
created:
9 years ago
visibility:
public

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