le: N125P3D lectricity Generation Some of the report A subset of this table for
ID: 3687586 • Letter: L
Question
le: N125P3D lectricity Generation Some of the report A subset of this table for 19 008 (with formatting and headings removed) is available on the course Blackboard site. The data file is na f sources, including coal, nuclear, hydroelectric, wind lectricity is generated nationwide from a number of sources, including coal, nuc ore. The Department of Energy publishes various reports each year related to energy cated at 9- nerry.dat. It is shown below The file Energy.dat is arranged as follows. Column 1 contains the year Columns 2-14 contain the following information: Column Energy (in Thousand Energy Category Fossil Fuel Fossil Fuel Fossil Fuel Fossil Fuel Nuclear Hydro-Electric Renewable Renewable Renewable Renewable Coal Natural Gas Other Gases Nuclear Hydro-Electric Hydro-Electric Biomass- Wood Biomass -Waste 10 12 13 Wind Other Other 1576173298 42201 486 798574077 3195712804111135Explanation / Answer
In this case, the Number variable is an array of 12 integer values. Because a variable declared as array is first of all a variable, using its name, let us find its address. Consider the following program:
This would produce:
This demonstrates that Number, &Number, and &number[0] have the same value. As we learned with pointers, the use of the ampersand "&" allows us to get the address of a variable. Therefore, &Number gives us the address of the array variable. Furthermore, since &Number and &number[0] have the same value, and seeing that all three (Number, &Number, and &number[0]) have the same value, this demonstrates that the name of the variable in fact carries, or holds, or represents, the address of the first value of the array. In fact, consider the following program:
This would produce:
Notice that, by adding numbers to the name of the variable, we are able to get the address of any member of the array.
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