Learn How to Program in Cby
Dr. Kristin Switala
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Review: Loops (a)
Instructions: Think about each question and write the answer in your notebook.
White Box Testing
1. Fix the errors in this C source code. There are 2 errors.
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#include <stdio.h>
void main( )
{
int answer;
while(answer !! 10) {
printf("\nHow many rings does the planet Uranus have? ");
scanf("%d", &answer);
}
printf("/nYes, Uranus has %d rings.", answer);
}
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2. Fix the errors in this C source code. There is 1 error.
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#include <stdio.h>
void main( )
{
char answer;
while(answer != 'j') {
printf("\nWhich planet is larger: Jupiter (type j) or Saturn (type s)? ");
scanf("%c", &answer);
}
printf("\nYes, Jupiter is the largest planet.");
}
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3. Fix the errors in this C source code. There are 2 errors.
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#include <stdio.h>
void main( )
{
char planet;
while(planet != 'u') {
printf("\nWhich planet rotates up and down, instead of side to side?);
printf("\nJupiter (type j) \t Saturn (type s) \t Uranus (type u) ");
scanf(" %c", &planet);
}
printf("\nYes, Uranus was knocked on its side by some huge impact.);
}
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4. Fix the errors in this C source code. There are 2 errors.
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#include <stdio.h>
void main( )
{
char winds;
while(winds != 'n')
{
printf("\nWhich planet has winds up to 2000 km/hr?");
printf("\nJupiter (type j) \t Saturn (type s)");
printf("\nUranus (type u) \t Neptune (type n) ");
scanf("%c", &wins);
}
printf("\nYes, Neptune has the fastest winds in the Solar System.");
}
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