How do you build an array for 4x7?

To build an array for 4x7, you will need to understand how arrays work. Arrays are a way to store multiple values of the same data type in a single variable. In this case, we want to create a two-dimensional array, which is essentially a table with rows and columns.

To build a 4x7 array, you will need to define the array and specify the number of rows and columns you want. Here's an example of how you can do it in different programming languages:

In Python:
```python
array_4x7 = [[0] * 7 for _ in range(4)]
```

In Java:
```java
int[][] array_4x7 = new int[4][7];
```

In JavaScript:
```javascript
let array_4x7 = new Array(4);
for (let i = 0; i < array_4x7.length; i++) {
array_4x7[i] = new Array(7).fill(0);
}
```

In all these examples, we create a 4x7 array filled with zeros. The outer brackets define the rows of the array, and the inner brackets define the columns. Adjust the dimensions and the default value (e.g., 0) as per your requirement.

Remember to consult the documentation or resources specific to your programming language for more detailed information on creating arrays.