How do you use final keyword with a simple code example?

The final keyword in Java is used to declare constants. It can be applied to variables, methods, and classes. When a variable is declared as final, its value cannot be changed once it is initialized. When a method is declared final, it cannot be overridden by subclasses. When a class is declared final, it cannot be subclassed.

Here is a simple example demonstrating the use of the final keyword:


    // Example of using final keyword in Java
    public class FinalExample {
        // Final variable
        final int MAX_VALUE = 100;

        // Final method
        final void display() {
            System.out.println("This is a final method.");
        }
    }

    class SubClass extends FinalExample {
        // Attempting to override final method will cause a compilation error
        /*
        void display() {
            System.out.println("Trying to override final method.");
        }
        */
    }

How do you use final keyword with a simple code example?

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How do you use final keyword with a simple code example?

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