References vs pointers

Read first Task 45

A reference is another name for the same variable.

Definition and example

References vs pointers is the focus of this lesson. A reference is another name for the same variable. The task asks you to apply that idea in a small example: A reference is…. Before you run the code, predict what should happen. Then Inspect the program output and the compiler message if it fails and compare it with your prediction. If the result differs, change one relevant line and run it again. Testing one change at a time makes the cause of a result easier to understand.

C++ 1 automatic check Section 5 · Objects and real programs

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// TASK references-vs-pointers-05: A reference is…
// STEPS: Read the explanation. Change one relevant line at a time, then run the code and compare the result with the check on the right.
#include <iostream>
using namespace std;

int main() {
    int fee = 9000;
    int &same_fee = fee;
    same_fee = same_fee + 500;
    // TODO: produce the required output for this task.
    return 0;
}

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Checks on this task:

The program output must match “9500”.

The task and step-by-step instructions are written as comments at the top of the editor. Change one relevant line, run it, and compare the result with these checks.

Incorrect attempts before answer: 0 / 3

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References vs pointers

References vs pointers

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