Lesson: 41 | Merge two Lists

Expected Outcome

DEBUG|(2, 4, 7, 5, 12, 15, 11, 20)

Code

List<Integer> listA = new List<Integer>{2,4,7,5};
List<Integer> listB = new List<Integer>{12,15,11,20};

List<Integer> listC = new List<Integer>(listA);
listC.addAll(listB);
System.debug(listC);

Video