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C Data and Operators

bookWorking with Variables

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Before you can use a variable in C, you need to declare it. Declaring a variable means telling the compiler what kind of data the variable will hold (its type) and giving it a name (its identifier). The general syntax for declaring a variable is:

<data_type> <variable_name>;
main.c

main.c

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#include <stdio.h>

int main() {
    // Store distance using an integer
    int distance = 12;
    
    // Store direction using a character
    char direction = 'R';

    return 0;
}
Note
Note

When initializing a char type variable, make sure to use single quotes.

With the data stored in these variables, you can use them in different ways. One option is to display them on the screen, or you can process them further in calculations.

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Now, can you select the correct way to initialize a character-type variable?

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すべて明確でしたか？

どのように改善できますか？

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