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.
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).
Method 1
#include <iostream>
#include <string>
using namespace std;
int main() {
string str;
//Enter String
cout << "Enter any string: ";
getline(cin, str);
for (int i = 0; i < str.length(); i++) {
//Check if string is alphabet or not
if (isalpha(str[i])) {
if (str[i] == 'z' || str[i] == 'Z') {
str[i] -= 25;
}
else {
str[i]++;
}
}
}
cout << "New modified string will be: " << str << endl;
return 0;
}
Output
Enter any string: CodDesire
New modified string will be: DpeEftjsfMethod 2
#include <iostream>
#include <string>
using namespace std;
string changedLetters(const std::string& input) {
string result = input;
for (size_t i = 0; i < result.size(); ++i) {
// Check if a string is a alphabet or not
if (std::isalpha(result[i])) {
// For 'z' make it 'a'
if (result[i] == 'z') {
result[i] = 'a';
// For 'Z' make it 'A'
} else if (result[i] == 'Z') {
result[i] = 'A';
} else {
result[i] = result[i] + 1;
}
}
}
return result;
}
int main() {
string input;
cout << "Enter any string: ";
getline(std::cin, input);
string newString = changedLetters(input);
cout << "New string: " << newString << std::endl;
return 0;
}
Output
Enter any string: CodDesire
New string: DpeEftjsf