The get() method of ArrayList in Java is used to get the element of a specified index within the list.
Syntax :
get(index)
Parameter :
index:index of the elements to be returned. It is of data-type int.
Returns :
It returns the element at the specified index in the given list.
Errors and exception :
IndexOutOfBoundsException-if the index is out of range (index=size())
Example 1 : Program to demonstrate the working of get()
// Java code to demonstrate the working of// get() method in ArrayList // for ArrayList functionsimport java.util.ArrayList; public class GFG { public static void main(String[] args) { // creating an Empty Integer ArrayList ArrayList<Integer> arr = new ArrayList<Integer>(4); // using add() to initialize values // [10, 20, 30, 40] arr.add(10); arr.add(20); arr.add(30); arr.add(40); System.out.println("List: " + arr); // element at index 2 int element = arr.get(2); System.out.println("the element at index 2 is " + element); }} |
Output :
List: [10, 20, 30, 40] the element at index 2 is 30
Example 2 : Program to demonstrate the error
// Java code to demonstrate the error of// get() method in ArrayList // for ArrayList functionsimport java.util.ArrayList; public class GFG { public static void main(String[] args) { // creating an Empty Integer ArrayList ArrayList<Integer> arr = new ArrayList<Integer>(4); // using add() to initialize values // [10, 20, 30, 40] arr.add(10); arr.add(20); arr.add(30); arr.add(40); // element at index 2 int element = arr.get(5); System.out.println("the element at index 2 is " + element); }} |
Output :
Exception in thread "main" java.lang.IndexOutOfBoundsException: Index: 5, Size: 4
at java.util.ArrayList.rangeCheck(ArrayList.java:657)
at java.util.ArrayList.get(ArrayList.java:433)
at GFG.main(GFG.java:22)Reference: link
Attention reader! Don’t stop learning now. Get hold of all the important Java Foundation and Collections concepts with the Fundamentals of Java and Java Collections Course at a student-friendly price and become industry ready. To complete your preparation from learning a language to DS Algo and many more, please refer Complete Interview Preparation Course.
