Input Data and Display Result

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Hiya im a beginner lookin for help or any tips on
how to develop an application to enter and display four subjects
Basic Input Subject Code and the Subject names, and the percentage mark are displayed

Any ideas on how to go about this
thanks for any help

How do i link the input data to the data i want it to display
INPUT
Code: PP145

Disply:
Subject PP145 Powerpoint for novice
Grade: 70%

thanks for any help