Consider the Classes Shown Below: Public Class Parent

question 35

Multiple Choice

Consider the classes shown below: public class Parent
{
Public void doSomething() {/* Implementation not shown */}
}
Public class Child extends Parent
{
Public void doAnotherThing() {/* Implementation not shown */}
}
Which lines in the following code will compile without error?
Parent kid = new Child() ;
Kid) doSomething() ; // line 1
Kid) doAnotherThing() ; // line 2

• A) Line 1 only
• B) Line 2 only
• C) Lines 1 and 2
• D) Neither line will compile without error

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Definitions:

Brake Treadle Valve

A valve operated by a pedal that controls the flow of air or hydraulic fluid to the brakes.

Air Brake Treadle Valve

A valve controlled by the foot pedal in air brake systems, regulating air pressure sent to the brakes to slow down or stop the vehicle.

CMVSS 121

Canadian Motor Vehicle Safety Standard 121, concerning the requirements for air brake systems on heavy trucks and buses in Canada.

Dual Circuit Application Valve

A valve used in braking systems designed for redundancy, ensuring braking capability even if one circuit fails.