Parsing JSON Object in Salesforce Apex

How do I parse a jsonObject which is in a given format in Apex?

I need List<String> from the items array which contains the id attribute. What is some appropriate method?

For parsing it, I try to create a class with code:

public class JSON2Apex {

    public class Items {
        public String kind;
        public String etag;
        public String id;
        public String status;
        public String htmlLink;
        public String created;
        public String updated;
        public String summary;
        public String description;
        public String location;
        public Creator creator;
        public Creator organizer;
        public Start start;
        public Start end;
        public String iCalUID;
        public Integer sequence;
        public Reminders reminders;
    }

    public class Reminders {
        public Boolean useDefault;
    }

    public class Start {
        public String dateTime;
    }

    public class Creator {
        public String email;
        public String displayName;
        public Boolean self;
    }

    public String kind;
    public String etag;
    public String summary;
    public String updated;
    public String timeZone;
    public String accessRole;
    public List<DefaultReminders> defaultReminders;
    public List<Items> items;

    public class DefaultReminders {
        public String method;
        public Integer minutes;
    }

}

But in this class it is showing some reserved keyword is user like end , dateTime etc so can't proceed further with this approach.

{
    "kind": "calendar#events",
    "etag": "\"ZrhdJMCgpoUK_a5fT7XOC6xn46g/jAScaUzsyk9nbyyvTc1Wa3-tulA\"",
    "summary": "riteshmehandiratta@gmail.com",
    "updated": "2013-02-16T16:23:20.057Z",
    "timeZone": "Asia/Calcutta",
    "accessRole": "owner",
    "defaultReminders": [
        {
            "method": "email",
            "minutes": 10
        },