Abstraction and interfaces demos

Author: CMPundhir

Oops4.java

@@ -0,0 +1,46 @@
+abstract class BeingSundar{
+	abstract void goods();
+	abstract void bads();
+	public void complications(){
+		System.out.println("it's complicated...");
+	}
+}	
+class Mayank extends BeingSundar{
+	@Override
+	public void goods(){
+		System.out.println("1. Sundar ladkiyo ki kami nhi...");
+		System.out.println("2. Overconfidence ki me bahot sundar hu...");
+		System.out.println("3. Modeling kr skte hai...");
+	}
+	@Override
+	public void bads(){
+		System.out.println("1. Dosro ko judge ya comment krna ...");
+		System.out.println("2. Shoes ka color match krna chahiye");
+		System.out.println("3. ladkiyo ki kami nhi...");
+	}
+	public void intro(){
+		System.out.println("i am mayank...");
+	}
+}
+class Priya extends BeingSundar{
+	public void goods(){
+		System.out.println("1. kuchh bhi pahan lo achhe lagte ho...");
+	}
+	@Override
+	public void bads(){
+		System.out.println("1. ladko ki lammbi line...");
+	}
+}
+
+class Oops4{
+	public static void main(String[] args){
+		BeingSundar sundar = new Mayank();
+		sundar.goods();
+		sundar.bads();
+		sundar.complications();
+		
+		sundar = new Priya();
+		sundar.goods();
+		sundar.bads();
+	}
+}

Oops5.java

@@ -0,0 +1,72 @@
+interface BeingSundar{
+	void goods();
+	void bads();
+	/*public void complications(){
+		System.out.println("it's complicated...");
+	}*///interface cannot have a body method
+	default void complications(){
+		System.out.println("it's complicated...");
+	}
+}	
+class Mayank implements BeingSundar{
+	@Override
+	public void goods(){
+		System.out.println("1. Sundar ladkiyo ki kami nhi...");
+		System.out.println("2. Overconfidence ki me bahot sundar hu...");
+		System.out.println("3. Modeling kr skte hai...");
+	}
+	@Override
+	public void bads(){
+		System.out.println("1. Dosro ko judge ya comment krna ...");
+		System.out.println("2. Shoes ka color match krna chahiye");
+		System.out.println("3. ladkiyo ki kami nhi...");
+	}
+	public void intro(){
+		System.out.println("i am mayank...");
+	}
+}
+class Priya implements BeingSundar{
+	public void goods(){
+		System.out.println("1. kuchh bhi pahan lo achhe lagte ho...");
+	}
+	@Override
+	public void bads(){
+		System.out.println("1. ladko ki lammbi line...");
+	}
+}
+
+class Oops5{
+	public static void main(String[] args){
+		BeingSundar sundar = new Mayank();
+		sundar.goods();
+		sundar.bads();
+		sundar.complications();
+		
+		sundar = new Priya();
+		sundar.goods();
+		sundar.bads();
+		
+		sundar = new BeingSundar(){
+			public void goods(){
+				System.out.println("1. Bachhe bhi sundar hoge");
+			}
+			@Override
+			public void bads(){
+				System.out.println("1. koi gaurantee nhi hai bachha gora hoga...");
+			}
+		};
+		sundar.goods();
+		sundar.bads();
+		
+		new BeingSundar(){
+			public void goods(){
+				System.out.println("1. Ease to interact and get attention easily");
+				System.out.println("2. Easy friendship");
+			}
+			@Override
+			public void bads(){
+				System.out.println("1. Jalne wale log...");
+			}
+		}.goods();
+	}
+}