Iterator Java Example
August 16, 2013
java.util.Iterator iterates the elements in Collection Framework. Iterator has taken the place of Enumeration. Iterator has three elements
1. hasNext()- checks if elements are available.
2. next() - returns the value
3. remove()- removes the elements from the Collection.
Find the example below.
IteratorDemo.java
package com.util;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
public class IteratorDemo {
public static void main(String[] args) {
List list = new ArrayList();
list.add("A");
list.add("B");
list.add("C");
System.out.println(list.size());
Iterator itr = list.iterator();
while(itr.hasNext()){
String s = itr.next();
System.out.println(s);
if("C".equals(s)){
itr.remove();
}
}
System.out.println(list.size());
}
}
3 A B C 2
