simple inheritance demo

Author: pray3m

LAB4/README.md

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+
+# OOP in Java  - LAB 4
+
+### Objective:
+To learn concepts of Inheritance, techniques to use it, concept of overriding, use of keyword
+super, abstract class and method.
+
+## Acknowledgements
+
+ - [LAB 4 PDF](https://github.com/pray3m/JavaPrograms/blob/main/LAB3/lab%203(class%20and%20object).pdf)
+ - [Q.N 1*](https://github.com/pray3m/JavaPrograms/blob/main/LAB4/SimpleInheritance.java)
+ - [Q.N 2*](https://github.com/pray3m/JavaPrograms/blob/main/LAB4/BoxDemo.java)
+ - [Q.N 3*](https://github.com/pray3m/JavaPrograms/blob/main/LAB4/BoxDemo.java)
+ - [Q.N 4*](https://github.com/pray3m/JavaPrograms/blob/main/LAB4/BoxDemo.java)
+ - [Q.N 5*](https://github.com/pray3m/JavaPrograms/blob/main/LAB4/BoxDemo.java)
+ - [Q.N 6*](https://github.com/pray3m/JavaPrograms/blob/main/LAB4/BoxDemo.java)
+ - [Q.N 7*](https://github.com/pray3m/JavaPrograms/blob/main/LAB4/BoxDemo.java)
+ - [Q.N 8*](https://github.com/pray3m/JavaPrograms/blob/main/LAB4/BoxDemo.java)
+ - [Q.N 9*](https://github.com/pray3m/JavaPrograms/blob/main/LAB4/BoxDemo.java)
+ - [Q.N 10*](https://github.com/pray3m/JavaPrograms/blob/main/LAB4/BoxDemo.java)
+ - [Q.N 11*](https://github.com/pray3m/JavaPrograms/blob/main/LAB4/BoxDemo.java)
+ - [Q.N 12*](https://github.com/pray3m/JavaPrograms/blob/main/LAB4/BoxDemo.java)
+

LAB4/SimpleInheritance.java

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+/* 1. Demonstrate the feature of simple inheritance */
+
+/*
+ * author : @pray3m
+ */
+
+class Animal{
+    void eat(){
+        System.out.println("I can eat.");
+    }
+
+    void sleep(){
+        System.out.println("I can sleep.");
+    }
+}
+
+class Dog extends Animal{
+    void bark(){
+        System.out.println("I can Bark.");
+    }
+}
+
+public class SimpleInheritance {
+    public static void main(String[] args) {
+        Dog d1=new Dog();
+        d1.eat();
+        d1.sleep();
+        d1.bark();
+    }
+}