C++ Programming
- Write a program to print Hello, World on the standard output.
- Write a program that uses the multiplication operator, *, to print the product.
- Program to use
a separate statement to print each operand. - Write a program that uses a while to sum the numbers from 50 to 100.
- write a while that prints the numbers from ten down to zero.
- Write a program that prompts the user for two integers. Print each number in the range specified by those two integers.
- What are the differences between int, long, long long, and short?
- To calculate a mortgage payment, what types would you use for the rate, principal, and payment? Explain why you selected each type.
- Determine the type of each of the following literals. Explain the differences among the literals in each of the four examples:
- What, if any, are the differences between the following definitions: int month = 9, day = 7; int month = 09, day = 07;
- What values do these literals represent? What type does each have? (a) “Who goes with F\145rgus?\012” (b) 3.14e1L (c) 1024f (d) 3.14L
- Using escape sequences, write a program to print 2M followed by a newline. Modify the program to print 2, then a tab, then an M, followed by a newline.
- Explain the following definitions. For those that are illegal, explain what’s wrong and how to correct it.
(a) std::cin >> int input_value;
(b) int i = { 3.14 };
(c) double salary = wage = 9999.99;
(d) int i = 3.14; - Write a program to calculate the highest two numbers in an array with length n, and print these numbers with their indexes.
- Write a C++ program to change every letter in a given string with the letter following it in the alphabet (i.e. a becomes b, p becomes q, z becomes a).
- Write a C++ program to find the largest word in a given string.
- Write a C++ program to count all the characters, blank spaces and words in a given string.
- Write a C++ program to find a word in a given string that has the highest number repeated letters.
To calculate a mortgage payment, what types would you use for the rate, principal, and payment? Explain why you selected each type.
We can use float or double. Float takes 4 bytes of memory whereas double takes 8 bytes of memory. Float has a lower precision and it is used to store decimal numbers with fewer digits. Double has a higher precision and stores decimal numbers with more digits. Double has at most twice the precision. Float has 7 decimal digits of precision whereas double has 15 decimal digits of precision. So if precision is not the requirement, we can use float to save memory.
We can use the rate as a float like that: 5.69% per year. The principal like to float that, $1000.784. The payment like double that: $ 15000.147825.