Modifier isFinal(mod) method in Java with Examples

// Java program to illustrate isFinal() method

import java.lang.reflect.*;

public class GFG {

    public static void main(String[] args)
    {

        // get Method class object
        Method[] methods
            = Shape.class.getMethods();

        // get Modifier Integer value
        int mod = methods[0].getModifiers();

        // check Modifier is final or not
        boolean result = Modifier.isFinal(mod);

        System.out.println("Mod integer value "
                           + mod + " is final : "
                           + result);
    }

    class Shape {

        public final void drawShape() {}
    }
}

// Java program to illustrate isFinal()

import java.lang.reflect.*;

public class GFG {

    public static void main(String[] args)
    {

        // get Method class object
        Method[] methods
            = Numbers.class.getMethods();

        // get Modifier Integer value
        int mod1 = methods[0].getModifiers();
        int mod2 = methods[1].getModifiers();

        // check Modifiers are final or not
        boolean result1 = Modifier.isFinal(mod1);
        boolean result2 = Modifier.isFinal(mod2);

        // print results
        System.out.println("Mod integer value "
                           + mod1 + " for method "
                           + methods[0].getName()
                           + " is final : "
                           + result1);

        System.out.println("Mod integer value "
                           + mod2 + " for method"
                           + methods[1].getName()
                           + " is final : "
                           + result2);
    }

    // sample final class
    abstract class Numbers {

        public abstract int initializeNumber();
        public final int declareNumbers()
        {
            return 0;
        }
    }
}