Where Is the Error in the Following Code Sequence, and Why

question 68

Essay

Where is the error in the following code sequence, and why? How would you correct it?
int number = 6;
double d = number;
number = 19.0;

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Definitions:

LeClanché Cell

An early type of wet cell battery consisting of a zinc anode, a manganese dioxide cathode, and an electrolyte of ammonium chloride.

Carbon-Zinc

A type of battery chemistry characterized by the use of carbon and zinc as the electrode materials, often used in household batteries.

Alkaline

A type of battery chemistry that is based on the reaction between zinc and manganese dioxide, characterized by high energy density.

Hydrometer

A device used to measure the specific gravity of a fluid, such as the electrolyte used in a battery.