ArrayList cards

Frage	Antworten
Accessing elements of ArrayList with..	- Enhanced for loop - Iterator -ListIterator
Accessing elements of an ArrayList with Enhanced for loop	ArrayList<int> arrList = new ArrayList <>(); For (int i : arrList) { System.out.println (i); }
Accessing elements of an ArrayList with ListIterator	ArrayList<StringBuilder> arrList = new ArrayList<>(); arrList.add(new StringBuilder(" a " )); arrList.add(new StringBuilder(" b ")); ListIterator<StringBuilder> iterator = arrList.listIterator(); while( iterator.hasNext () ){ System.out.print(iterator.next(); }
Modifying the elements of an ArrayList	by using the method set(); or accessing its individual elements
ArrayList defines two methods to remove its element	- remove(int index); removes at specified position remove(Object o); removes the first occurrence of the specified element from this list, if it's present
Method to clear an ArrayList	You can remove all the elements in an ArrayList by calling clear()
Methods for Accessing ArrayList elements	- get(int index) -- returns the element at the specified position - size() -- returns the number of elements - contains(Objec o) -- returns true if an ArrayList contains the specified element - indexOf(Object o) -- returns the index of the first occurrence of the specified element in the list, or -1 if it does not exist - lastIndexOf(Object o) -- returns the last occurrence of the specified element in the list, or -1 if it does not exist

Zusammenfassung der Ressource

	Erstellt von alim586 vor mehr als 9 Jahre