Abstraction Demo

Author: CMPundhir

AbstractionDemo1.java

@@ -0,0 +1,25 @@
+abstract class Shape{
+	abstract void draw();
+	public void paint(){
+		System.out.println("rainbow...");
+	}
+}
+class Rectangle extends Shape{
+	public void draw(){
+		System.out.println("Draw a rectangle...");
+	}
+}
+class Circle extends Shape{
+	public void draw(){
+		System.out.println("Draw a circle...");
+	}
+}
+class AbstractionDemo1{			
+	public static void main(String[] args){
+		Shape shape = new Rectangle();
+		shape.draw();
+		shape.paint();
+		shape = new Circle();
+		shape.draw();
+	}
+}

AbstractionDemo2.java

@@ -0,0 +1,25 @@
+interface Shape{
+	void draw();
+	public static void paint(){
+		System.out.println("rainbow...");
+	}
+}
+class Rectangle implements Shape{
+	public void draw(){
+		System.out.println("Draw a rectangle...");
+	}
+}
+class Circle implements Shape{
+	public void draw(){
+		System.out.println("Draw a circle...");
+	}
+}
+class AbstractionDemo2{			
+	public static void main(String[] args){
+		Shape shape = new Rectangle();
+		shape.draw();
+		Shape.paint();
+		shape = new Circle();
+		shape.draw();
+	}
+}