package class6_2_HalfExam3_Problem7_start;// Dr. Yoder. MSOE. 12 April 2017

/**
 * This example illustrates some of the differences between an abstract method
 * and an interface. Compare this file with AbstractClass.java
 */
public interface Interface {
    static final int Z=5;// Class constant
//    int x;              // Instance variable
//    static int y;       // Class variable
//    Interface(){}    // Constructor
//    void method() {}     // Implementation for an ordinary method
//    protected abstract void pam(); // Protected abstract method
    abstract void m2();  // Abstract method
    static void m3(){}   // Class method.  New in Java 8. Not a "pure" interface item, even though it is legal. ("Pure interfaces" don't have any implementations.) //http://stackoverflow.com/a/22497

    // Not allowed anywhere:
//    abstract int y;   // Variables can never be abstract - they have no bodies to omit.
//    abstract static void m4(); // Class methods can never be abstract.  There is no reference to change at runtime for polymorphism
}