JAVA EE: Java Tutorial : Java nested classes(Local Classes-final Static)

Monday, 11 January 2016

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OuterClass.java

public class OuterClass
{

    private String name = "John";

    public void greetInEnglish()
    {
        class SayHello
        {
            /*
             * We cannot declare static variable [with out final] 
             * in a local class.
             * 
             * A local class can have static members provided that they are
             * constant variables[final variable]
             */

            public static final String message = "Welcome";

            public void greet()
            {
                System.out.println(message);
            }
        }

        SayHello sayHello = new SayHello();
        sayHello.greet();

    }
}

LocalClassTest.java

public class LocalClassTest
{
    public static void main(String args[])
    {
        OuterClass outerClass = new OuterClass();
        outerClass.greetInEnglish();
    }

}

Output