uppercase ascii value with code examples

In computer science, ASCII (American Standard Code for Information Interchange) is a character encoding standard used to represent characters in computers. It assigns a unique number to each character in the standard set, ranging from 0 to 127. However, uppercase and lowercase letters have different ASCII values.

Uppercase letters have ASCII values ranging from 65 to 90, whereas lowercase letters have ASCII values ranging from 97 to 122. A fundamental concept in programming is converting lowercase letters to uppercase letters, and vice versa.

In this article, we’ll cover uppercase ASCII values, and provide some code examples in different programming languages.

Uppercase ASCII Values

Uppercase characters are commonly used in computer programming. ASCII values for uppercase letters can be used to store a string in uppercase letters, convert a lowercase string to uppercase, or check whether a given character is an uppercase letter.

Here are the ASCII values of some common uppercase characters:

Code Examples

Here are some code examples in different programming languages to demonstrate how uppercase ASCII values can be used:

1. C++

In C++, we can use the uppercase() function to convert a string to uppercase characters.

#include <iostream>
#include <algorithm>
#include <string>

int main() {
    std::string str = "hello world";
    std::transform(str.begin(), str.end(), str.begin(), ::toupper);
    std::cout << str << std::endl;
    return 0;
}

Output: HELLO WORLD

2. Python

In Python, we can use the upper() function to convert a string to uppercase characters.

string = "Hello, World!"
print(string.upper())

Output: HELLO, WORLD!

3. Java

In Java, we can use the toUpperCase() method to convert a string to uppercase characters.

String str = "hello world";
String upperString = str.toUpperCase();
System.out.println(upperString);

Output: HELLO WORLD

4. JavaScript

In JavaScript, we can use the toUpperCase() method to convert a string to uppercase characters.

const str = "hello world";
const upperString = str.toUpperCase();
console.log(upperString);

Output: HELLO WORLD

Conclusion

In conclusion, uppercase ASCII values are crucial for converting lowercase strings to uppercase, storing strings in uppercase, or checking whether a given character is an uppercase letter. Different programming languages provide simple and efficient methods to perform these operations, making programming easier and less prone to errors.

let's delve a little deeper into the concepts discussed in the previous article.

ASCII and Character Encoding

ASCII (American Standard Code for Information Interchange) is a character encoding standard that assigns a unique number to each character in the standard set. It was initially developed in the 1960s for telecommunication purposes, but over time, it became a standard for character encoding in computers.

ASCII stands for American Standard Code for Information Interchange and is an integer value assigned to each character of a character set that is used to represent text in computer systems.

An "encoding" is a standard number assigned to represent a character. ASCII encoding uses one byte (eight bits) to represent a character. This means that it can represent a maximum of 256 characters (2^8). The first 128 ASCII characters are standard characters, while the other 128 are reserved for extended characters.

Uppercase and Lowercase ASCII Characters

ASCII values for uppercase and lowercase letters are different, which is an integral concept in programming. Lowercase letters have ASCII values ranging from 97 to 122, whereas uppercase letters have ASCII values ranging from 65 to 90.

Converting from lowercase to uppercase, or vice versa, is a common operation in programming. Converting characters from lowercase to uppercase can be done by subtracting 32 from their ASCII value. For example, the ASCII value of lowercase "a" is 97, and the ASCII value of uppercase "A" is 65. By subtracting 32 from 97, we get 65, which is the ASCII value for uppercase "A".

Conversely, converting characters from uppercase to lowercase can be done by adding 32 to their ASCII value. For example, the ASCII value of uppercase "A" is 65, and the ASCII value of lowercase "a" is 97. By adding 32 to 65, we get 97, which is the ASCII value for lowercase "a".

String Manipulation

String manipulation is the process of changing or extracting specific characters from a string. Various programming languages provide built-in functions or methods to perform string manipulation operations.

For example, in C++, the string class provides functions like substr(), strlen(), find(), and replace(), which can be used for string manipulation operations. Similarly, in Python, the string class provides methods like upper(), lower(), replace(), and split() for string manipulation operations.

String manipulation is an essential part of programming and is commonly used in parsing data, data cleaning, and user input validation.

Conclusion

ASCII values and string manipulation are fundamental concepts in programming. Understanding the differences in ASCII values between uppercase and lowercase letters is essential for converting strings to a different case. String manipulation operations are commonly used in various programming tasks, from data cleaning to user input validation. A good understanding of these concepts is vital for any programmer working with text-based data.

Popular questions

Q1. What is ASCII?
A1. ASCII (American Standard Code for Information Interchange) is a character encoding standard used to represent characters in computers.

Q2. What is the range of ASCII values for uppercase letters?
A2. Uppercase letters have ASCII values ranging from 65 to 90.

Q3. How can we convert a lowercase string to uppercase in C++?
A3. We can use the std::transform() function with the ::toupper function to convert a string to uppercase characters in C++.

Q4. What is string manipulation?
A4. String manipulation is the process of changing or extracting specific characters from a string.

Q5. What is the ASCII value for the uppercase letter 'Z'?
A5. The ASCII value for the uppercase letter 'Z' is 90.

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