How to Convert Enum Values to Int in Java

Learn how to convert enum values to int in Java using an enum constructor, getter method, and values() method. Java enums are used to represent a group of named constants.

Code Explanation (Step-by-Step)

Here enum constants A to Z are declared, and each constant is assigned an integer value.
To assign values to enum constants, an argument constructor Alphabets(int value) is defined inside the enum.
The constructor stores the integer value in the value variable.
The getValue() method is used to return the integer value associated with an enum constant.
The static getValue(String character) method accepts a character and finds its integer value from the enum.
The Alphabets.values() method returns an array containing all enum constants and stored in an Alphabets[] array .
A for-each loop iterates through all enum constants one by one.
Inside the loop, the entered character is compared with the enum constant using equalsIgnoreCase().
If a match is found, the corresponding integer value is assigned to the value variable.
Now, the integer value is returned and displayed as output.

				
					enum Alphabets {

    A(1), B(2), C(3), D(4), E(5), F(6), G(7), H(8), I(9),
    J(1), K(2), L(3), M(4), N(5), O(6), P(7), Q(8), R(9),
    S(1), T(2), U(3), V(4), W(5), X(6), Y(7), Z(8);

    private int value;

    private Alphabets(int value) {
        this.value = value;
    }

    public int getValue() {
        return value;
    }

    public static int getValue(String character) {

        Alphabets[] alphabets = Alphabets.values();

        int value = 0;

        for (Alphabets alphabet : alphabets) {
            if (alphabet.name().equalsIgnoreCase(character)) {
                value = alphabet.getValue();
            }
        }

        return value;
    }
}

public class CharacterToIntFromEnum {

    public static void main(String[] args) {

        System.out.println(
            "Convert character to integer from enum class value is :- "
            + Alphabets.getValue("A")
        );
    }
}

Output :-
convert character to integer from enum class value is:- 1

What are Enum Constants in Java?

Enum constants are predefined fixed values declared inside an enum. In the Alphabets enum, A, B, C, …, Z are enum constants, and each constant is associated with an integer value through the enum constructor.

				
					enum Alphabets {
    A(1), B(2), C(3);
}

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What are Enum Constants in Java?

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