Char data type in java programming (V16)

 

 Char Data Types

        The char data type is a single 16-bit Unicode character that represents a wide range of characters and symbols. It has a range from '\u0000' (or 0) to '\uffff' (or 65,535). This data type is mainly used to store individual characters.

Syntax:

        

Example: Declaring char Data Type

        

Declaring Escape Sequences in Java

        

Source Code:

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public class CharExample {
    public static void main(String[] args) {
        char c1 = 'A';           // Regular character
        char c2 = 65;            // ASCII value for 'A'
        char c3 = '\u0041';      // Unicode representation of 'A'
        char c4 = '\n';          // Newline character
        
        System.out.println(c1); // Output: A
        System.out.println(c2); // Output: A
        System.out.println(c3); // Output: A
        System.out.println("Hello" + c4 + "World!"); // Output: Hello
                                                   //         World!
    }
}

Result:

Source Code:

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import java.util.Scanner;

public class CharGrade {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        // Prompt the user to enter a character
        System.out.print("Enter a grade (A, B, C, D, or F): ");
        char grade = scanner.next().charAt(0); // Read the first character input

        // Evaluate the character using switch
        switch (grade) {
            case 'A':
                System.out.println("Excellent! Keep up the great work.");
                break;
            case 'B':
                System.out.println("Good job! You can aim higher.");
                break;
            case 'C':
                System.out.println("Fair. There's room for improvement.");
                break;
            case 'D':
                System.out.println("You passed, but consider reviewing the material.");
                break;
            case 'F':
                System.out.println("Failed. Don't give up—study and try again.");
                break;
            default:
                System.out.println("Invalid grade entered. Please enter A, B, C, D, or F.");
        }

        scanner.close();
    }
}

Result:

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