Books.GuruExample: [1]class Rectangle { int L, B; public: void Input() {cin>>L>>B;}void Output(){ Cout}};In this example:Data and member functions are together encapsulatedOnly Input () and Output ()...

Books.GuruExample: [1]class Rectangle { int L, B; public: void Input() {cin>>L>>B;}void Output(){ Cout}};In this example:Data and member functions are together encapsulatedOnly Input () and Output () functions are visible outside theclass which can only can be accessed outside the class usingobjects of the same class - Abstraction