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Thread: Unexpected Behaviour of ArrayList

  1. #1
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    Default Unexpected Behaviour of ArrayList

    import java.util.*;
    class ArrayListDemo2
    {
    public static void main(String args[])
    {
    ArrayList al=new ArrayList();
    al.add("one");
    al.add("two");
    al.add("three");
    al.add("four");
    for(int i=0;i<al.size();i++)
    {
    System.out.println(al.remove(i));
    }
    }
    }

    Expected Output:-

    one
    two
    three
    four

    But I got

    one
    three

    What is the reason for this output?
    How to get my expected output?


  2. #2
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    Default Re: Unexpected Behaviour of ArrayList

    import java.util.*;
    public class arraylistDemo2 {
    public static void main(String args[])
    {
    ArrayList al=new ArrayList();
    al.add("one");
    al.add("two");
    al.add("three");
    al.add("four");
    Iterator i=al.iterator();
    while(i.hasNext())
    {
    System.out.println(i.next());
    }
    }



    }

    output:
    one
    two
    three
    four


    hi i have some idea about that,iterator is used to travelling a object so you can use extact contain in arraylist
    if it is wrong sorry

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    Default Re: Unexpected Behaviour of ArrayList

    @both of you: Welcome to the forum! Please read this topic to learn how to post code in code or highlight tags and other useful info for new members.

    Please post your code correctly using code or highlight tags per the above link.

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