array list get first element code example

Example 1: java last element in array

arrayName[arrayName.length() - 1];

Example 2: find first element of list java

final Object firstElement = list.stream()
  .findFirst()
  .orElse(new Object()) //Give a default value if there are no elements
  
final Object firstElement = list.stream()
  .findFirst()
  .orElseThrow(() -> new Exception()) //Throw an exception if there are no elements

Example 3: arraylist get last

E e = list.get(list.size() - 1);

Example 4: java first index of an arraylist

ArrayList<Type> array = new ArrayList<Type>();
System.out.printLn(array[0]);