Practice how to create different data type variables in Java

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public class ExampleApp {

    public static void main(String[] args) {
        
        // Declare and initialize variables of different data types
        char charVariable = 'A';                // Character data
        System.out.println(charVariable + " is a character data"); // output: A is a character data

        String stringVariable = "Hello Java";    // String data
        System.out.println(stringVariable + " is a string data"); // output: Hello Java is a string data

        int integerVariable = 10;               // Integer data
        System.out.println(integerVariable + " is an integer data"); // output: 10 is an integer data

        float floatVariable = 3.14f;            // Single-precision floating-point data
        System.out.println(floatVariable + " is a float data"); // output: 3.14 is a float data

        double doubleVariable = 2.71828;        // Double-precision floating-point data
        System.out.println(doubleVariable + " is a double data"); // output: 2.71828 is a double data

        boolean boolVariable = true;               // Boolean data
        System.out.println(boolVariable + " is a boolean data"); // output: true is a boolean data
    }
}