Question

which of the following is a valid variable declaration and initialization: a. S=12;int s; b. S=12; c. S=12 d. int s; S=12;
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Answer 1

Answer:

The valid format is the first declaration of variable and then initialization.

datatype variable_name;

variable_name = value;

OR

datatype variable_name = value;

a)

s = 12; //initialization

int s; //variable declaration

Invalid

b)

s = 12; //initialization

Invalid

c)

s = 12 //no semi-colon

Invalid

d)

int s; //variable declaration

s = 12; //initialization

Valid