Question

Write a C code using switch statement that will ask the user to enter a character. This character should be one of the first three characters of your name. The code then should check for the value of the character and output the following: If the character is the same as yo&r first letter then output "X=10" If the character is the same as your second letter then output "Y=5" If the character is the same as your Third letter then output "Z=100" Example if your name is Mohammed: Enter a character Z=100

Answer 1

This program is not possible because as per rules

• The expression (after switch keyword) must yield an integer value i.e the expression should be an integer or a variable or an expression that evaluates to an integer.

For example

switch(a)

switch(a + b + c)

switch(ch1 + a)

switch(a < b)

switch(my_func(12))

switch('a')

• We can not use such expressions which evaluate floating point values or strings or characters.

Eg. switch(a + 12.2) // expression must yield an integer value not double or float.

switch(f1==name[0])   

switch("string")

Also for case below types of constants are not allowed

case "string"  // string constants are not allowed

case 1.2       // floating point constants are not allowed

case a         // variables are not allowed

case a + b     // variables are not allowed

case 1,2,3     // each case must contain only one constant