Java Program to Find ASCII Value of a character

Java is a popular object-oriented programming language that is widely used for developing various types of applications, including desktop, web, and mobile applications. One of the common tasks that developers need to perform in their applications is to find the ASCII value of a character. The ASCII value of a character is a numeric representation of the character that is used by computers to store and process text. In this blog post, we will discuss how to write a Java program to find the ASCII value of a character.

Before we dive into the implementation of the program, let's first understand what ASCII is and how it works.

ASCII stands for American Standard Code for Information Interchange, which is a character encoding standard that assigns a unique numeric value to each character. The ASCII values range from 0 to 127, and each value represents a character. For example, the ASCII value of the letter 'A' is 65, the ASCII value of the letter 'B' is 66, and so on.

To find the ASCII value of a character in Java, we can use the 'char' data type and the type casting operator. The 'char' data type is used to represent a single character, and the type casting operator allows us to convert the 'char' data type to an 'int' data type, which is used to store the ASCII value.

Here is the Java program to find the ASCII value of a character:

java

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import java.util.Scanner;

public class ASCIIValue {

   public static void main(String[] args) {

      Scanner scanner = new Scanner(System.in);

      System.out.println("Enter a character: ");

      char c = scanner.next().charAt(0);

      int asciiValue = (int) c;

      System.out.println("The ASCII value of " + c + " is " + asciiValue);

   }

}

Let's understand the above program step-by-step.

We first import the 'Scanner' class from the 'java.util' package. This class is used to read input from the user.

We then declare a public class called 'ASCIIValue'.

Inside the 'ASCIIValue' class, we declare the 'main' method, which is the entry point of the program.

We create an instance of the 'Scanner' class called 'scanner'.

We then prompt the user to enter a character by printing the message "Enter a character: ".

We use the 'next' method of the 'Scanner' class to read the input from the user, and the 'charAt' method of the 'String' class to extract the first character from the input string.

We then declare an 'int' variable called 'asciiValue' and assign the ASCII value of the character to it using the type casting operator.

Finally, we print the ASCII value of the character by concatenating the character and the ASCII value using the '+' operator.

We close the 'main' method and the 'ASCIIValue' class.

When we run the above program and enter a character, it will output the ASCII value of the character. For example, if we enter the letter 'A', the program will output:

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Enter a character:

A

The ASCII value of A is 65

In conclusion, finding the ASCII value of a character is a simple task in Java. We can use the 'char' data type and the type casting operator to convert the 'char' data type to an 'int' data type, which is used to store the ASCII value. The above Java program demonstrates how to find the ASCII value of a character, and you can use it as a reference to write similar programs in your applications.