get first element of arraylist java code example

Example 1: get last element of array java

firstNum = numbers[0];
lastNum = numbers[numbers.length-1];

Example 2: java last element in array

arrayName[arrayName.length() - 1];

Example 3: find last element in array in java

firstNum = numbers.get(0);
lastNum = numbers.get(numbers.size() - 1);

Example 4: 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 5: arraylist get last

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

Example 6: java list get first element

list.get(0);