In a Java class that follows the common object-oriented programming conventions for classes that will be made available for others to use and maintained over time, it is suggested that all data fields be defined:

why might we write public get and set methods for private properties? hint: you may want to do a quick internet search for "java getters and setters pros and cons." 1. these public methods give us a way to read and write the values of these properties in a controlled way 2. they make a program run more efficiently 3. if we didn’t, there would be no way to read or write the values of the properties 4. object-oriented languages require us to do this

Consider the following class declarations in C++:class C {protected: int x;public: void f(){...};};class C1: public C {protected: int x1;public: void h(C *obj){...};};class C2: public C1 {public: int x2;};class C3: public C {public: f(){...};};i. Draw the class hierarchyii. Assume that main contains the following declaration:C1 obj1;For each of the following expressions, say whether it is allowed in the code of main or not (they can be forbidden either because they violate the classdefinition or the protection mechanism)obj1.x , obj1.f() , obj1.x1 , obj1.x2iii. Assume that the body ofC1::h contains the following declarationsC2 *obj2;C3 *obj3;For each of the following expressions, say whether it is allowed in the bodyofC1::hor notobj->x , obj2->x , obj3->xiv. Assume that the body ofC1::h contains the following statementobj->f();Assume that we call C1::h with a parameter (pointing to an object) of classAnd what would be the method executed if f were declared virtual in C?

Java

Can we override static methods of a class?