The get(index) method of CopyOnWriteArrayList returns the element at the specified index.
Syntax:
public E get(int index)
Parameters: The function accepts a mandatory parameter index which specifies the index of the element to be returned.
Return Value: The function returns the element at the given index.
Exceptions: The function throws IndexOutOfBoundsException if the index is out of range.
Below programs illustrate the above function:
Program 1:
// Java Program to illustrate the // CopyOnWriteArrayList get() method in Javaimport java.util.concurrent.CopyOnWriteArrayList;import java.util.*;  public class GFG {    public static void main(String[] args)    {          // create object of CopyOnWriteArrayList        CopyOnWriteArrayList<Integer> ArrLis            = new CopyOnWriteArrayList<Integer>();          // Add elements        ArrLis.add(32);        ArrLis.add(67);        ArrLis.add(98);        ArrLis.add(100);          // print CopyOnWriteArrayList        System.out.println("CopyOnWriteArrayList: "                                           + ArrLis);          // 2nd index in the arraylist        System.out.println("Element at 2nd index: "                                     + ArrLis.get(2));    }} |
Output:
CopyOnWriteArrayList: [32, 67, 98, 100] Element at 2nd index: 98
Program 2:
// Java Program to illustrate the // CopyOnWriteArrayList get() method in Javaimport java.util.concurrent.CopyOnWriteArrayList;import java.util.*;  public class GFG {    public static void main(String[] args)    {          // create object of CopyOnWriteArrayList        CopyOnWriteArrayList<String> ArrLis            = new CopyOnWriteArrayList<String>();          // Add elements        ArrLis.add("gopal");        ArrLis.add("gfg");        ArrLis.add("jgec");        ArrLis.add("sudo");          // print CopyOnWriteArrayList        System.out.println("CopyOnWriteArrayList: "                                           + ArrLis);          // 4th index element of the arraylist        // out of range, hence error        System.out.println("CopyOnWriteArrayList: "                                    + ArrLis.get(4));    }} |
Output:
Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: 4
at java.util.concurrent.CopyOnWriteArrayList.get(CopyOnWriteArrayList.java:388)
at java.util.concurrent.CopyOnWriteArrayList.get(CopyOnWriteArrayList.java:397)
at GFG.main(GFG.java:24)
Reference: https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/CopyOnWriteArrayList.html#get-int-
