In Java 20, you can get the first and last element of an array using the following code:
int[] arr = {1, 2, 3, 4, 5}; // Example integer array
// Getting the first element
int firstElement = arr[0];
// Getting the last element
int lastElement = arr[arr.length-1];
Explanation:
1. The arr variable is an example integer array containing 5 elements.
2. To get the first element, you can simply access the 0th index of the array.
3. To get the last element, you need to use the length property of the array, subtract 1 (since arrays are 0-based), and access the resulting index.
**Note:** This method works for arrays of any data type, not just integers. Just replace int with the correct data type in the code.