How to use ArrayList s get method

Question

I m new to java   amp  to OOP too  and I m trying to understand about the class ArrayList but I don t understand how to use the get    I tried searching in net  but couldn t find anything helpful

User · Answer

Here is the official documentation of ArrayList.get().

Anyway it is very simple, for example

ArrayList list = new ArrayList();
list.add("1");
list.add("2");
list.add("3");
String str = (String) list.get(0); // here you get "1" in str

User · Answer

You use List get int index  to get an object with the index index in the list  You use it like that   List lt ExampleClass gt  list   new ArrayList lt ExampleClass gt     list add new ExampleClass     list add new ExampleClass     list add new ExampleClass     ExampleClass exampleObj   list get 2      will get the 3rd element in the list  index 2

User · Answer

To put it nice and simply  get int index  returns the element at the specified index    So say we had an ArrayList of Strings   List lt String gt  names   new ArrayList lt String gt     names add  Arthur Dent    names add  Marvin    names add  Trillian    names add  Ford Prefect      Which can be visualised as   Where 0  1  2  and 3 denote the indexes of the ArrayList    Say we wanted to retrieve one of the names we would do the following  String name   names get 1   Which returns the name at the index of 1    So if we were to print out the name System out println name   the output would be Marvin - Although he might not be too happy with us disturbing him

User · Answer

Would this help   final List lt String gt  l   new ArrayList lt String gt     for  int i   0  i  lt  10  i    l add  Number     i   for  int i   0  i  lt  10  i    System out println l get i

User · Answer

ArrayList get int index  method is used for fetching an element from the list  We need to specify the index while calling get method and it returns the value present at the specified index   public Element get int index    Example    In below example we are getting few elements of an arraylist by using get method   package beginnersbook com  import java util ArrayList  public class GetMethodExample      public static void main String   args           ArrayList lt String gt  al   new ArrayList lt String gt            al add  pen           al add  pencil           al add  ink           al add  notebook           al add  book           al add  books           al add  paper           al add  white board            System out println  First element of the ArrayList    al get 0           System out println  Third element of the ArrayList    al get 2           System out println  Sixth element of the ArrayList    al get 5           System out println  Fourth element of the ArrayList    al get 3             Output   First element of the ArrayList  pen Third element of the ArrayList  ink Sixth element of the ArrayList  books Fourth element of the ArrayList  notebook

[java] How to use ArrayList's get() method

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