C++ language

C++ language

1. What is the effect of these statements?

int width;

cin >> width;

A whole value is read from the keyboard and stored associated with the name width.

A floating point value is read from the keyboard and stored associated with the name width.

The contents of the variable named width is sent to the output stream.

The value of width is assigned to the value of cin.

2. What will happen when you compile a program with the following statements? (Just look at these two statements as presented, make no assumptions about any other code.)

int num;

double Num = 0.0;

an error, because you have reused the name “num”

an error, because you have not initialized num

no errors will occur due to these statements

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