QuestionAugust 12, 2025

Which of the following statements creates a default Rational object? Rational r1(1,2) Rational r1(1,2,3) Rational r1() Rational r1

Which of the following statements creates a default Rational object? Rational r1(1,2) Rational r1(1,2,3) Rational r1() Rational r1
Which of the following statements creates a default Rational object?
Rational r1(1,2)
Rational r1(1,2,3)
Rational r1()
Rational r1

Solution
4.1(168 votes)

Answer

Rational r1() Explanation 1. Identify Default Constructor A default constructor is called without any arguments. 2. Analyze Each Statement - Rational \ r1(1,2): Calls a constructor with two arguments. - Rational \ r1(1,2,3): Calls a constructor with three arguments. - Rational \ r1(): Calls a constructor with no arguments (default). - Rational \ r1: Declares an object but does not explicitly call a constructor.

Explanation

1. Identify Default Constructor<br /> A default constructor is called without any arguments.<br />2. Analyze Each Statement<br /> - $Rational \ r1(1,2)$: Calls a constructor with two arguments.<br /> - $Rational \ r1(1,2,3)$: Calls a constructor with three arguments.<br /> - $Rational \ r1()$: Calls a constructor with no arguments (default).<br /> - $Rational \ r1$: Declares an object but does not explicitly call a constructor.
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