Insert the missing code in the following code fragment. This fragment is intended to initialize an instance variable.
Public class Motor
{
Int motorSpeed;
Public Motor(int speed)
{
MotorSpeed = speed;
}
Public Motor()
{
_________;
}
}
Which of the following lines of code will allow the second constructor to call the first constructor?
A) this.motorspeed(0);
B) this(0);
C) this(speed);
D) You cannot call a constructor from within another constructor.

Question

Quizplus · Accepted Answer

The keyword "this" followed by parentheses with arguments is used to call one constructor from another constructor in the same class. The argument list should match one of the constructor's parameter lists. Therefore, the correct line of code to initialize the instance variable in the second constructor is "this(0);" which calls the first constructor with an argument of 0.

Insert the Missing Code in the Following Code Fragment