Auto-graded programming assignments have numerous advantages, but have some challenges too. Students commonly struggle with realizing that example input / output provided in an assignment's specification interleaves input and output, but the program should only output the output parts. If a program should double its input, an instructor might provide this example: Enter x: 5 x doubled is: 10 Students often incorrectly create a program that outputs the 5. Instead, the program should only output the output parts: Enter x: x doubled is: 10 The instructor's example is showing both the output of the program, AND the user's input to that program, assuming the program is developed in an environment where a user is interacting with a program. But the program itself doesn't output the 5 (or the newline following the 5, which occurs when the user types 5 and presses enter). Also, if the instructor configured the test cases to observe whitespace, then according to the above example, the program should output a newline after Enter x: (and possibly after the 10, if the instructor's test case expects that). The program below incorrectly echoes the user's input to the output.
2.10 zyLab training: Interleaved input / output
Auto-graded
Students often incorrectly create a program that outputs the 5. Instead, the program should only output the output parts:
Enter x: x doubled is: 10The instructor's example is showing both the output of the program, AND the user's input to that program, assuming the program is developed in an environment where a user is interacting with a program. But the program itself doesn't output the 5 (or the newline following the 5, which occurs when the user types 5 and presses enter).
Also, if the instructor configured the test cases to observe whitespace, then according to the above example, the program should output a newline after Enter x: (and possibly after the 10, if the instructor's test case expects that).
The program below incorrectly echoes the user's input to the output.
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