Java获取数组列表中两个元素之间的元素子列表

Question

I have below data in arrayList. Every row is an element in arraylist.

How can I get/map for every Service corresponding description Example 1: {Service= Review of Inpatient Hospital Care,Description= When your condition requires you to be an inpatient Description= If payment determination criteria are not met. If we inform you that you do not meet payment determination criteria.}

Example 2: {Service= Ambulatory Surgical Center (ASC),Description= When your condition requires you to be an inpatient Description= Covered, including operating rooms, surgical supplies.}

Service= Review of Inpatient Hospital Care
Description= When your condition requires you to be an inpatient
Description= If payment determination criteria are not met. 
If we inform you that you do not meet payment determination criteria. 
Service= Ambulatory Surgical Center (ASC)
Description= Covered, including operating rooms, surgical supplies.
Service= Hospital Ancillary Services
Description= Covered, including surgical supplies, hospital anesthesia services.
Service= Hospital Room and Board
Description= Covered, including:Semi-Private Rooms.  If you are hospitalized at a participating facility.
Description= Private Rooms.At Participating Hospitals.
Description= At Nonparticipating Hospitals:
Description= Newborn nursery care. Covered for the baby's nursery care after birth.
Description= Please note: Services at nonparticipating and out-of-state post-acute.
Service= Intensive Care Unit/Coronary Care Unit.
Description= Covered.
Service= Intermediate Care Unit
Description= Covered.
Service= Isolation Care Unit
Description= Covered.

Answer 1

I assume you want to create new objects that contain every data for each Service encountered, containing two properties : service and description. Am I right ?

In that case, you can iterate over all the elements and each time you find a line starting with 'Service=', you instanciate a new object with the content of the line after 'Service='. You can do this with regluar expressions . Each instanciated object should be put in another list or map.

Then, the next lines which doesn't start with 'Service=' will be concatenate in the 'Description' property of the current new object.

At the end of the loop, you would have a new list containg objects filled with all your data.

Edit : I would have made a Service classe with two properties : name and description, both as String.

Then, when you loop over the raw data list, each time you get a 'Service' line, you create a new Service with its name, extracted from the current line.

Next lines will be added to your buffer (I recommend the StringBuilder class in a single Thread program without synchronization), as the description value.

Finally, when you find a new Service line, you begin with flushing the buffer into the previous Service instance, filling its description property. And then you can start a new iteration by creating a new Service instance and loop again.