Merge pull request #511 from KeerthanaPravallika/master

Added Single Inheritance in java

Author: smv1999

OOPs/Inheritance/Single_Inheritance.java

@@ -0,0 +1,47 @@
+/*
+
+    Inheritance : Inheritance in Java is a mechanism in which one object 
+                  acquires all the properties and behaviors of a parent object. 
+                  
+    Single Inheritance : When a class inherits another class, it is known as a single inheritance.
+    
+            class A
+               ^
+               |
+               |
+            class B
+                   
+
+*/
+
+class base_class
+{
+    int base_value;
+    base_class(int num)          // constructor
+    {
+        base_value = num;
+    }
+}
+
+class derived_class extends base_class       // single inheritance
+{
+    int derived_value;
+    derived_class(int der_val,int base_val)   // constructor
+    {
+        super(base_val);                      //calling base class constructor 
+        derived_value = der_val;
+    }
+    void display()
+    {
+        System.out.println("Base class variable value : "+ base_value);      // accessing base class variable
+        System.out.println("Derived class variable value : "+derived_value);
+    }
+}
+public class Main
+{
+	public static void main(String[] args) {
+	    
+		derived_class obj = new derived_class(10,20);  // creating derived class object
+		obj.display();
+	}
+}