32 lines
1.7 KiB
Markdown
32 lines
1.7 KiB
Markdown
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The first thing you probably want to know is: What is programming?
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A program tells the computer what to do.
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It is like writing a recipe:
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You give the computer instructions to follow and the computer
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just executes them in order to get the result.
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_Remember_: The computer doesn't know what you try to achieve. It just does, what you tell him.
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## Description of the online learning platform (2)
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Below this text you see a text editor. The editor contains the program, i.e., the code to execute by the computer. In each exercise, we provide a basic skeleton for you to change and play with.
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Now it contains your very first program.
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Below the editor are three buttons, **Execute** will tell the system to run your instructions and will output the results below.
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**Submit results** tells the system to check if your program is correct.
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Once the results were submitted correctly, you can press the **Continue** button.
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## Knowledge
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The source code is just some special text, which will get translated into executable code.
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The line **int main()** in Line 3 tells the PC where your program starts.
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Everything between the curly braces between Line 5 and 6 will be executed.
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Everything behind two slashes "//" is a comment and will be ignored by the computer.
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Thus, Line 5 will not cause any action by the computer.
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## Task
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For now the only instruction that will be executed is the line **printf("Hello NAME");**
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This is a instruction to write the text between the quotes to the console, here "Hello Name".
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Use the execute button to execute the code, do you see the output?
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Then try the submit solution button to check the result: The provided code must be changed to be correct.
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Change the program, such that it will display instead of NAME your actual name to greet you properly.
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