+ 1
Under what condition can an int variable be assigned a char?
#include <iostream> using namespace std; int main() { int num = (int)'A'; char ch = num; cout << ch; return 0; } Why does this output A? 'A' alone is not an integer.. Does the (int) convert 'A' into an integer data type?
4 odpowiedzi
+ 6
here's quick hack on how to remember basic ascii values..
A = 65
B = A + 1 = 65 + 1 = 66
C = A + 2 = 65 + 2 = 67
or C = B + 2 = 66 + 1 = 67
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.
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Z = A + (distance b/w Z and A)
= 65 + (26 - 1)
= 65 + 25
= 90
One more example:
Y = A + (distance b/w Y and A)
= 65 + (25 - 1)
= 65 + 24
= 89
same applies for small letter
a = 97
b = a + 1 = 97 + 1 = 98
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.
z = a + (distance b/w z and a)
= 97 + (26 - 1)
= 97 + 25
= 122
same goes for numbers and symbols (with little effort)
+ 3
~ swim ~
Got it. Will do some memorizing on these 5 points
RKK
Thank you for all the examples.
+ 1
~ swim ~
My 3 weeks experience of c++ is from the Sololearn course and practice problems only.
No prior experience.
How much of the ASCII table should be memorized?
Okay I'll research a bit more on the relationship between chars and integers.