java Color on Enum call

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java Color on Enum call

In Java, you can use an enumeration (enum) to define a set of named constants. An enum is a special data type that allows you to define a set of named constants in a single data type.

To use an enum to define a set of named constants, you can define an enum type with the enum keyword, and then specify the constants as a list of values within curly braces.

Here is an example of how you can define an enum type called Color that represents a set of named color constants:

public enum Color {
    RED,
    GREEN,
    BLUE
}

To use the Colorenum, you can declare a variable of type Color and assign it one of the named constants.

Here is an example of how you can use the Colorenum:

public class MyClass {
    public static void main(String[] args) {
        Color myColor = Color.RED;
        System.out.println(myColor); // Outputs "RED"
    }
}

In this example, the myColor variable is declared as type Color and is assigned the value Color.RED. The Colorenum defines the named constants RED, GREEN, and BLUE, so you can assign one of these constants to a variable of type Color. When the value of the myColor variable is printed to the console, it outputs "RED" because that is the constant that was assigned to it.

It is important to note that the constants defined in an enum are automatically assigned an integer value starting from 0, so in this example, RED is assigned the value 0, GREEN is assigned the value 1, and BLUE is assigned the value 2. However, you can also specify custom values for the constants if you want.

Created Time:2017-11-01 22:29:54  Author:lautturi