Answers for "how to get first element in arraylist java"

9

java get last element of list

ArrayList<Integer> list = new ArrayList<Integer>(5); 
int last = list.get(list.size() - 1);
Posted by: Guest on May-30-2020
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
Posted by: Guest on August-31-2020
1

arraylist get last

E e = list.get(list.size() - 1);
Posted by: Guest on July-03-2020

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