Question

Using Java:

Write a program that contains a function (named invert) that receives as
argument an array of type double and invert the contents of the array. Is that
if the values ​​were originally {1,5,7,12} now be {12, 7, 5, 1}. The function should
work correctly for any arrangement with any size.
Additionally, the user can enter the values ​​to be inverted manually or with the keyboard.

Answer 1

To write a program in Java that inverts the contents of an array, you can define a function named 'invert' that takes an array of type double as an argument.

Step-by-step explanation:

To write a program in Java that inverts the contents of an array, you can define a function named 'invert' that takes an array of type double as an argument. Here's an example of how you can implement this function:

public class ArrayInverter {
public static void invert(double[] arr) {
int n = arr.length;
for (int i = 0; i < n / 2; i++) {
double temp = arr[i];
arr[i] = arr[n - i - 1];
arr[n - i - 1] = temp;
}
}

public static void main(String[] args) {
double[] arr = {1, 5, 7, 12};
invert(arr);

for (double num : arr) {
System.out.print(num + " ");
}
}
}

In this program, the 'invert' function uses a two-pointer approach to swap the elements of the array. The 'main' function demonstrates how to use the 'invert' function on a specific array.