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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 count all the characters, blank spaces and words in a given string.
Method 1
#include <iostream>
#include <string>
using namespace std;
int main() {
string str;
//Give the initials
int characterCount = 0, wordCount = 0, blankSpaceCount = 0;
cout << "Enter any sequence of words or line: ";
getline(cin, str);
for (char c : str) {
characterCount++;
if (c == ' ') {
blankSpaceCount++;
}
}
//Words should be separated by single space
wordCount = blankSpaceCount + 1;
cout << "Number of characters: " << characterCount << endl;
cout << "Number of words: " << wordCount << endl;
cout << "Number of blank spaces: " << blankSpaceCount << endl;
return 0;
}
Output
Enter any sequence of words or line: Coddesire is for programming and technology
Number of characters: 43
Number of words: 6
Number of blank spaces: 5
Method 2
#include <iostream>
#include <string>
using namespace std;
//Function to count character words and space
void count(const std::string& input, int& charCount, int& wordCount, int& spaceCount) {
bool inWord = false;
for (char ch : input) {
//Words should be separated by a single space
if (ch != ' ') {
charCount++;
if (!inWord) {
wordCount++;
inWord = true;
}
} else {
spaceCount++;
inWord = false;
}
}
}
int main() {
string input;
cout << "Enter any sequence of words or line: ";
getline(cin, input);
//Give the initials
int charCount = 0, wordCount = 0, spaceCount = 0;
count(input, charCount, wordCount, spaceCount);
cout << "Number of characters : " << charCount <<endl;
cout << "Number of words: " << wordCount <<endl;
cout << "Number of spaces: " << spaceCount <<endl;
return 0;
}
Output
Enter any sequence of words or line: CodDesire is for programming and technology
Number of characters : 38
Number of words: 6
Number of spaces: 5