Chapter 11.5, Problem 11.5.1CP

Purpose of the given statement:

The purpose of the given statement is to find the radius of the circle.

Syntax error:

An error which occurred on the source code of a program is referred as “syntax error”; because the computer programs strictly follows the syntax rules, if the code fails to prove its language syntax format then the compiler will throw an error.

Error 1:

In the given code, inside the constructor the variable “radius” is declared as “radius”.

radius = radius;

The below statement is an example of declaration of variable inside the constructor:

this.a = a;

The corrected statement is given as follows:

this.radius = radius;

Error 2:

In the given code, the subclass constructor is declared without “super” for overriding the method in the superclass.

Circle (radius);

The below statement is an example of declaration of overriding method in subclass:

super (a);

The corrected statement is given as follows:

super (radius);

Error 3:

In the given code, inside the constructor the variable “length” is declared as “length”.

length = length;

The below statement is an example of declaration of variable inside the constructor:

this.a = a;

The corrected statement is given as follows:

this.length = length;

Error 4:

In the given code, the subclass constructor is declared without “super” for overriding the method in the superclass...