Chapter 2: Problem 18

Write statements that do the following: a) Declare a char variable named letter. b) Assign the letter \(A\) to the letter variable. c) Display the contents of the letter variable.

Short Answer

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Answer: The three steps involved are: 1. Declaring a char variable, for example: char letter; 2. Assigning a value to the char variable, for example: letter = 'A'; 3. Displaying the contents of the char variable using appropriate print statements as per the programming language. For example, System.out.println(letter) in Java or cout << letter in C++.

Step by step solution

Declaring a char variable named letter

In most common programming languages, to declare a variable we need to specify the type of the variable and the name we want the variable to have. Since this problem asks for a character variable, we need to mention char before the name of the variable. Here is how you can do it: char letter;

Assign the letter \(A\) to the letter variable

Once you have a char variable declared, you can assign a value to it using the assignment operator (=). In this case, 'letter' is the variable and the value to be assigned is 'A'. Here is how to do it: letter = 'A'; In programming, character values are enclosed in single quotes.

Display the contents of the letter variable

After assigning a value to a declared variable, it may be necessary to display or print out its content. Depending on the programming language, the method of doing this varies. For instance, in C++ or Java, you can use a print statement such as System.out.print in Java and cout in C++. Here is how to do it in Java: System.out.println(letter); And here it is in C++: cout << letter;

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Write statements that do the following: a) Declare a char variable named letter. b) Assign the letter \(A\) to the letter variable. c) Display the contents of the letter variable.

Short Answer

Step by step solution

Declaring a char variable named letter

Assign the letter \(A\) to the letter variable

Display the contents of the letter variable

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