/*
Replace an element at specified index of Java ArrayList Example
This Java Example shows how to replace an element at specified index of java
ArrayList object using set method.
*/
import java.util.ArrayList;
public class ReplaceElementAtSpecifiedIndexArrayListExample {
public static void main(String[] args) {
//create an ArrayList object
ArrayList arrayList = new ArrayList();
//Add elements to Arraylist
arrayList.add("1");
arrayList.add("2");
arrayList.add("3");
/*
To replace an element at the specified index of ArrayList use
Object set(int index, Object obj) method.
This method replaces the specified element at the specified index in the
ArrayList and returns the element previously at the specified position.
*/
arrayList.set(1,"REPLACED ELEMENT");
System.out.println("ArrayList contains...");
//display elements of ArrayList
for(int index=0; index < arrayList.size(); index++)
System.out.println(arrayList.get(index));
}
}
/*
Output would be
ArrayList contains...
1
REPLACED ELEMENT
3
*/
