set() Method : Java.util.ArrayList

Declaration :

public E set(int index, E element)

1	public E set(int index, E element)

Explanation :

Purpose	Method returns true if this list contains the specified element
Parameters	index ==> The index of the element to replaced
	element ==> element to be stored at the specified position
Return Value	Element which was previously at the specified position
Exception	IndexOutOfBoundsException ==> If index is out of range

Example

The following example shows the usage of java.util.Arraylist.set() method.

package com.c4learn.arraylist;
import java.util.ArrayList;
public class ArrayListExamples {
  public static void main(String args[]) {
    // Create ArrayList 1
    ArrayList<String> arrlist1 = new ArrayList<String>(5);
    // Fill Elements in ArrayList 1
    arrlist1.add("A");
    arrlist1.add("B");
    arrlist1.add("C");
    // Replace 2nd element of list
    String str = arrlist1.set(1,"Z");
    //Print Previous element
    System.out.println("Previous Element : " + str);
    //Print ArrayList
    System.out.println("Array List : " + arrlist1);
  }
}

package com.c4learn.arraylist;

import java.util.ArrayList;

public class ArrayListExamples {

public static void main(String args[]) {

// Create ArrayList 1

ArrayList<String> arrlist1 = new ArrayList<String>(5);

// Fill Elements in ArrayList 1

arrlist1.add("A");

arrlist1.add("B");

arrlist1.add("C");

// Replace 2nd element of list

String str = arrlist1.set(1,"Z");

//Print Previous element

System.out.println("Previous Element : " + str);

//Print ArrayList

System.out.println("Array List : " + arrlist1);

}

Output :

Previous Element : B
Array List : [A, Z, C]

1 2	Previous Element : B Array List : [A, Z, C]

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