43 lines
872 B
Java
43 lines
872 B
Java
import java.util.Scanner;
|
|
|
|
|
|
/**
|
|
* @author Kyler Smith, 2017
|
|
*
|
|
* Implementation of a character count.
|
|
* (Slow, could be improved upon, effectively O(n).
|
|
* */
|
|
|
|
public class CountChar {
|
|
|
|
public static void main(String[] args) {
|
|
Scanner input = new Scanner(System.in);
|
|
System.out.print("Enter your text: ");
|
|
String str = input.nextLine();
|
|
|
|
System.out.println("There are " + CountCharacters(str) + " characters.");
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
* @param str: String to count the characters
|
|
*
|
|
* @return int: Number of characters in the passed string
|
|
* */
|
|
|
|
public static int CountCharacters(String str) {
|
|
|
|
int count = 0;
|
|
|
|
if(str.isEmpty() || str == null)
|
|
return -1;
|
|
|
|
for(int i = 0; i < str.length(); i++)
|
|
if(!Character.isWhitespace(str.charAt(i)))
|
|
count++;
|
|
|
|
return count;
|
|
}
|
|
}
|