Abstract Class
# Shape.java package shape_demo; public abstract class Shape{public abstract double sumAreas();} # Rectangle.java package shape_demo; public class Rectangle extends Shape{@Overridepublic double sumAreas(){return 1;}} # Triangle.java package shape_demo; public class Triangle extends Shape{@Overridepublic double sumAreas(){return 0.3;}} # Shapes.java package shape_demo; public class Shapes{public ..
Java
2016. 6. 24. 13:40