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What is the difference between a declaration and a definition of a variable?

What is the difference between a declaration and a definition of a variable? Correct Answer A declaration occurs once, but a definition may occur many times.

Related Questions

Statement I The product of coefficient of correlation, standard deviation of variable 'X' and Standard deviation of variable 'Y' gives the measure of covariance between X and Y variables.
Statement II The product of coefficient of correlation between X and Y variables and the ratio between standard deviation of X variable to standard deviation of Y variable measures the slope of the regression line of X on Y variable.
Choose the correct statement.
I.   The scope of a macro definition need not be the entire program.
II.  The scope of a macro definition extends from the point of definition to the end of the file.
III. New line is a macro definition delimiter.
IV.  A macro definition may go beyond a line.
Consider following facts regarding effect of declaration made under section 34 of Specific Relief Act:-
1. Declaration is binding on the parties to the suit and persons claiming through them respectively.
2. Declaration binds all those persons who have knowledge of the suit and knowingly they do not become parties.
Consider the following statements regarding the Alma-Ata Declaration Alma-Ata Declaration of 1978 is an International conference on primary health care. India was a signatory to the Alma Ata Declaration in 1978 that assured ‘health for all’ by the year 2000 Which among the above statements is/are correct?
The difference between SI and CI for a certain sum at 15% rate of interest for 2 years is Rs. 360. What is the ratio between the difference between SI and CI for 2 years and the difference between SI and CI for 3 years at same rate of interest?
The question in this set ask you to match definition to particular situations. For each question, you are given a definition and four possible answer choices. Read each definition and all four choices carefully and find the answer that provides the best example of the given definition. People speculate when they consider a situation and assume something to be true based on inconclusive evidence. Which situation below is the best example of Speculation?
The question in this set ask you to match definition to particular situations. For each question, you are given a definition and four possible answer choices. Read each definition and all four choices carefully and find the answer that provides the best example of the given definition. Embellishing the Truth occurs when a person adds fictitious details or exaggerates facts or true stories. Which situation below is the best example of Embellishing the Truth?
The question in this set ask you to match definition to particular situations. For each question, you are given a definition and four possible answer choices. Read each definition and all four choices carefully and find the answer that provides the best example of the given definition. Violating an apartment lease occurs when a tenant does something prohibited by the legally binding document that he or she has signed with a landlord. Which situation below is the best example of Violating an Apartment Lease?
The question in this set ask you to match definition to particular situations. For each question, you are given a definition and four possible answer choices. Read each definition and all four choices carefully and find the answer that provides the best example of the given definition. A Guarantee is a promise or assurance that attests to the quality of a product that is either given in writing by the manufacturer or given verbally by the person selling the product. Which situation below is the best example of a Guarantee?
The question in this set ask you to match definition to particular situations. For each question, you are given a definition and four possible answer choices. Read each definition and all four choices carefully and find the answer that provides the best example of the given definition. It is appropriate to compensate someone if you have damaged his or her property in some way. This is called Restitution. Which situation below is the best example of Restitution?