Answer:
an error message
Explanation:
The return value is the value which is sent back by the function to a place in the code from where the
was called from. Its main work is to return a value form the function.
In the context, the form of "(symbol-length? 'James)" in Scheme will return the value --- ' an error message'.
The area of a square is simply the square of the side. So, you only need to write a program that receives a number as input, which is the side of the square, and returns that number squared, which will be the area of the square.
You didn't specify any language, so for example here's a C implementation that receives the side from the user and returns the area:
#include <stdio.h>
int main()
{
double side, area;
do{
printf("Enter the side of the square (must be >0): ");
scanf("%lf", &side);
} while(side<=0);
area = side * side;
printf("The area is %lf", area);
}
Answer:
1. You can invoke or call a method from another program or method: TRUE
2. When methods must share data, you can pass the data into and return the data out of methods: TRUE
3. A method could be called using any numeric value as an argument, whether it is a variable, a named constant, or a literal constant: TRUE
Explanation:
Answer:
See the program code below.
Explanation:
def cube_SA(edge):
edge = int(input("Enter the cube's edge: "))
sa = edge * edge * 6
print("The surface area is {} square units".format(sa))
cube_SA(4)
Best Regards!
Answer:
inFile.open("progdata.dat");
Explanation:
This command opens the file which is passed to it as an argument. We are quite used to the C++'s cin and cout functions contained in iostream library for reading and writing data, however, when working will real-life stuff, we find ourselves working with huge data saved as separate files and require our programs to read them, manipulate them and possibly write back to the files... The first operation usually carried out before a file can be read or written to is open