Count digits, white space, others for user input - C String

Description

Count digits, white space, others for user input

Demo Code

#include <stdio.h>

int main()  /* count digits, white space, others */
{
    int c, i, nwhite, nother, ndigit[10];

    nwhite = nother = 0;//w  ww  .  ja v  a  2  s.com
    for (i = 0; i < 10; i++)
        ndigit[i] = 0;
    while ((c = getchar()) != EOF) {
        switch (c) {
        case '0': case '1': case '2': case '3': case '4':
        case '5': case '6': case '7': case '8': case '9':
            ndigit[c-'0']++;
            break;
        case ' ':
        case '\n':
        case '\t':
            nwhite++;
            break;
        default:
            nother++;
            break;
        }
    }
    printf("digits =");
    for (i = 0; i < 10; i++)
        printf(" %d", ndigit[i]);
    printf(", white space = %d, other = %d\n",
        nwhite, nother);
    return 0;
}

Result

• Previous
• Next

Related Tutorials

• Demonstrates using the gets_s() library function.
• Displaying strings with puts().
• Read a line and stop at \n
• Reads input until encountering # and print each input character and its ASCII decimal code.
• Reads input until encountering the # character and then reports the number of spaces read, the number of newline characters read, and the number of all other characters read.