Inheritance is a mechanismin which one class acquires the property of an other class. For example, a child inherits the traits of his/her parents. (a) Understand the program code below in Figure 1 and...

Extracted text: Inheritance is a mechanismin which one class acquires the property of an other class. For example, a child inherits the traits of his/her parents. (a) Understand the program code below in Figure 1 and answer the following questions. class shape { protected int length, width; void set (int a, int b) { length width = b; } void show () = a; { System.out.println (length+" "+width); }} class rectangle extends shape { int area; void setArea () { area= length*width;} void show () { System.out.println (area); }} class AreaRec{ public static void main (String [] args) { rectangle r= new rectangle () ; r. Set (4,10); r. Show () ; r. SetArea () ; r. Show () ; }} Figure 1: Rectangle area i. Identify the output of the program above. Please show the tracing table.