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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. 		Scanner input = new Scanner(System.in);
  13. 		System.out.println("Please enter a string: ");
  14. 		String STR=input.next();
  15. 		int numberDigits=0;
  16. 		int length=STR.length();
  17. 		char c;
  18. 		for (int i=0; i<length; i++){
  19. 			c=STR.charAt(i);
  20. 			if (c==0){
  21. 				numberDigits++;
  22. 			}
  23. 			else if (c=='1'){
  24. 				numberDigits++;
  25. 			}
  26. 			else if(c=='2'){
  27. 				numberDigits++;
  28. 			}
  29. 			else if(c=='3'){
  30. 				numberDigits++;
  31. 			}
  32. 			else if(c=='4'){
  33. 				numberDigits++;
  34. 			}
  35. 			else if(c=='5'){
  36. 				numberDigits++;
  37. 			}
  38. 			else if(c=='6'){
  39. 				numberDigits++;
  40. 			}
  41. 			else if(c=='7'){
  42. 				numberDigits++;
  43. 			}
  44. 			else if(c=='8'){
  45. 				numberDigits++;
  46. 			}
  47. 			else if(c=='9'){
  48. 				numberDigits++;
  49. 			}
  50. 		}
  51. 		System.out.println("The number of digits is "+numberDigits+".");
  52. 	}
  53. }
Success #stdin #stdout 0.16s 321344KB
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stdin
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a121b34219c
stdout
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Please enter a string: 
The number of digits is 8.
https://ideone.com/kH2dcS
Homework Problem 17
language:
Java (HotSpot 12)
created:
7 years ago
visibility:
public

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