arrayName[arrayName.length() - 1];
ArrayList<Integer> list = new ArrayList<Integer>(5);
int last = list.get(list.size() - 1);
firstNum = numbers[0];
lastNum = numbers[numbers.length-1];
int[] arr = new int[5]; //length of the array is 5
int val = arr[arr.length - 1]; //here variable val stores the last element of arr
int [] numbers = {1, 2, 3, 4, 5};
firstElement = numbers[0];
lastElement = numbers[numbers.length-1];
int last = list.get(list.size() - 1);
lastElement = Iterables.getLast(iterableList);
firstNum = numbers.get(0);
lastNum = numbers.get(numbers.size() - 1);
int a[]={1,2,3};
int last = a[a.length-1];
// Array of doubles
double[] array_doubles = {2.5, 6.2, 8.2, 4846.354, 9.6};
// First position
double firstNum = array_doubles[0]; // 2.5
// Last position
double lastNum = array_doubles[array_doubles.length - 1]; // 9.6
// GIVE FIRST NUMBER AND LAST NUMBER
firstNum = numbers[0];
lastNum = numbers[numbers.length-1];