Question:

Consider the following code snippet:

public class PrimitiveDataTypes {
    public static void main(String[] args) {
        int a = 5;
        double b = 7.5;
        char c = 'A';
        boolean d = true;
        String e = "Hello, World!";
        
        float f = ________;
        long g = ________;
        byte h = ________;
        short i = ________;
        
        // Fill in the blanks (marked with underscores) with appropriate values that match the specified data types.
        
        // Print the values of variables a to i and their corresponding data types.
    }
}

In the above code, the given variables a, b, c, d, and e are of different primitive data types. You are required to assign appropriate values to variables f, g, h, and i such that they match the respective data types float, long, byte, and short. Fill in the blanks (marked with underscores) with appropriate values.

After filling in the blanks, write the necessary code to print the values of variables a to i along with their corresponding data types. The output should be in the following format:

a = 5     | int
b = 7.5   | double
c = A     | char
d = true  | boolean
e = Hello, World! | String
f = 1.5   | float
g = 10000 | long
h = -12   | byte
i = 30000 | short

Answer:

public class PrimitiveDataTypes {
    public static void main(String[] args) {
        int a = 5;
        double b = 7.5;
        char c = 'A';
        boolean d = true;
        String e = "Hello, World!";
        
        float f = 1.5f;
        long g = 10000L;
        byte h = -12;
        short i = 30000;
        
        System.out.println("a = " + a + "     | int");
        System.out.println("b = " + b + "   | double");
        System.out.println("c = " + c + "     | char");
        System.out.println("d = " + d + "  | boolean");
        System.out.println("e = " + e + " | String");
        System.out.println("f = " + f + "   | float");
        System.out.println("g = " + g + " | long");
        System.out.println("h = " + h + "   | byte");
        System.out.println("i = " + i + " | short");
    }
}

Explanation:

In the given code, we are initializing variables a, b, c, d, and e with appropriate values. These variables are already declared with their respective data types.

To assign values to the remaining variables f, g, h, and i, we need to make sure the assigned values match their corresponding data types.

• float data type: We assign a decimal value 1.5 to variable f. It is important to append f to the value literal to indicate that it's a float value instead of a double.
• long data type: We assign a value 10000 to variable g, which is within the range of the long data type. To indicate that it's a long value, we need to append L or l to the value literal.
• byte data type: We assign a value -12 to variable h, which is within the range of the byte data type.
• short data type: We assign a value 30000 to variable i, which is within the range of the short data type.

Finally, we use the System.out.println() method to print the values of variables a to i along with their corresponding data types. The output is formatted using string concatenation and appropriate labels for better visualization.