kdeng00
76 lines
1.8 KiB
C
76 lines
1.8 KiB
C
/*
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*
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* The program demonstrates the use of the switch statement while counting
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* the occurrences of digits, white spaces (including actual white space,
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* new line, and a tab character), and other types of characters
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*
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* Author: Kun Deng
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*/
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#include <stdio.h>
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#define ARRAY_SIZE 13
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int main()
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{
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int c, white_space_count, other_character_count;
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int digit_count[ARRAY_SIZE];
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white_space_count = other_character_count = 0;
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for (int i = 0; i < ARRAY_SIZE; ++i)
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{
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digit_count[i] = 0;
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}
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while ((c = getchar()) != EOF)
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{
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switch (c)
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{
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case '0':
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case '1':
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case '2':
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case '3':
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case '4':
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case '5':
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case '6':
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case '7':
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case '8':
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// If no break statement is provided in a case then
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// the code can continue to execute other cases where
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// the expression matches the case.
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case '9':
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++digit_count[c - '0'];
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// Break statements causes the control flow of the program
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// to exit out of the block of code. In this case the
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// break statement will cause the control flow to exit
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// from the switch statement
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break;
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case ' ':
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case '\n':
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case '\t':
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++white_space_count;
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break;
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default:
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// Good practice to have a default case and have a break statement.
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// Just in case more cases are added to the future
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++other_character_count;
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break;
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}
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}
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printf("Digits =");
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for (int i = 0; i < ARRAY_SIZE; ++i)
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{
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printf(" %d", digit_count[i]);
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}
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printf(", white space = %d, other = %d\n",
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white_space_count, other_character_count);
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return 0;
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}
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