Question
Which of the following correctly declare an array that can hold up to 3 rows of 5 columns of doubles? float array[3][5]; int array[3],[5]; int array[3][5]; float array[3,5];
Ask by Chandler Barrett. in the United States
Jan 21,2025
Real Tutor Solution
Tutor-Verified Answer
Answer
The correct way to declare an array with 3 rows and 5 columns of doubles is:
```c
float array[3][5];
```
Solution
To declare an array that can hold up to 3 rows of 5 columns of doubles, the correct syntax is:
```c
float array[3][5];
```
This declares a 2D array named `array` with 3 rows and 5 columns, where each element is a double.
The other options are incorrect:
1. `int array[3],[5];` - This is not a valid syntax for declaring a 2D array in C.
2. `int array[3][5];` - This declares a 2D array with 3 rows and 5 columns, but the elements are integers, not doubles.
3. `float array[3,5];` - This is not a valid syntax for declaring a 2D array in C. The correct syntax for declaring a 2D array is `float array[3][5];`.
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Simplify this solution The Deep Dive
The first option, `float array[3][5];`, is correct and clearly defines a 2D array that holds up to 3 rows and 5 columns of floating-point numbers (doubles). It’s a classic way to declare an array in C/C++ where both dimensions must be specified in square brackets. Now, let’s get real for a second! Picture a spreadsheet where you want to store a tidy table of data: 3 rows for category labels and 5 columns for their associated values. This array mistake is like trying to fit a round peg in a square hole—just doesn’t work! Always double-check your syntax when declaring arrays. Happy coding!
