Java ListIterator add() Method

The add() method of ListIterator interface is used to insert the given element into the specified list. The element is inserted automatically before the next element may return by next() method.

Syntax

Parameters

The above method requires only one method:

The element 'e' that needs to be inserted.

Return

Throws:

UnsupportedOperationalArgument- If the add() method is not supported by the given list iterator.

ClassCastException- If the class of some of the element avoids it from being added into the list.

IllegalArgumentException- If some of the element avoids it from being added into the list.

Example 1

import java.util.ArrayList;
import java.util.Iterator;
import java.util.LinkedList;
import java.util.List;
import java.util.ListIterator;
public class JavaListIteratoraddExample1 {
   public static void main(String[] args) {
	  List<String>  li = new ArrayList<>();
	  Iterator<String> itr = null;
	  li.add("Hello");
	  li.add("Everyone");	  
	  itr = li.listIterator();   
	  while(itr.hasNext()){
          System.out.println(itr.next());
      } 
   }
}

Test it Now

Output:

Hello
Everyone

Example 2

import java.util.ArrayList;
import java.util.Iterator;
import java.util.LinkedList;
import java.util.List;
import java.util.ListIterator;
public class JavaListIteratoraddExample2 {
   public static void main(String[] args) {
	  List<Float>  li = new ArrayList<>();
	  Iterator<Float> itr = null;
	  li.add(66.9f);
	  li.add(70.4f);
	  li.add(34.6f);
	  itr = li.listIterator(); 
	 System.out.println("The list is given as: ");
	  while(itr.hasNext()){
          System.out.println(itr.next());
      } 
   }
} 

Test it Now

Output:

The list is given as: 
66.9
70.4
34.6

Example 3

import java.util.ArrayList;
import java.util.Iterator;
import java.util.LinkedList;
import java.util.List;
import java.util.ListIterator;
public class JavaListIteratoraddExample3 {
   public static void main(String[] args) {
	  List<Character>  li = new ArrayList<>();
	  Iterator<Character> itr = null;
	  li.add('t');
	  li.add('h');
	  li.add('j');
	  li.add('m');
	  itr = li.listIterator(); 
	 System.out.println("The list of alphabets is given as: "+li);  
   }
} 

Test it Now

Output:

The list of alphabets is given as: [t, h, j, m]

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Java ListIterator add() Method

Syntax

Parameters

Return

Throws:

Example 1

Example 2

Example 3

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