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Constructors - Programming

Q1:

Which of the following ways to create an object of the Sample class given below will work correctly? 
class Sample
{
    int i;
    Single j;
    double k;
    public Sample (int ii, Single jj, double kk)
    {
        i = ii;
        j = jj;
        k = kk;
    } 
}

A Sample s1 = new Sample();

B Sample s1 = new Sample(10);

C Sample s2 = new Sample(10, 1.2f);

D Sample s3 = new Sample(10, 1.2f, 2.4);

E Sample s1 = new Sample(, , 2.5);

ANS:D - Sample s3 = new Sample(10, 1.2f, 2.4);

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