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 Interface.java
 */
public abstract class AbstractClass {
    public static final int Z=5;// Class constant
    private int x;              // Instance variable
    private static int y;       // Class variable
    public AbstractClass(){}    // Constructor
    public void method() {}     // Implementation for an ordinary method
    protected abstract void pam(); // Protected abstract method
    public abstract void m2();  // Abstract method
    public static void m3(){}   // Class method

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