I have a text file, which has to be processed. The lines contains, country name and some of its states, like below. i want to make it in an array. Is there any collections available which can be implemented?
if(line.contains("India")){
//add their states to the collections
}
India
Karnataka
TamilNadu
Andhrapradesh
Pakistan
Karachi
Lahore
Australia
Canberra
Adelide
USA
New York
Washington
New Jersy
You can use a Map with String keys:
Map<String, List<String> countryStates = new HashMap<String, List<String>>();
if(line.contains("India")){
List<String> states = new ArrayList<String>();
states.add("state1");
// ...
countryStates.add("India", states);
}
The more elegant solution would be to use an Object:
public class Country {
private String name;
private List<String> states;
// getters, setters
}
List<Country> countries = //...
