35 lines
922 B
Java
35 lines
922 B
Java
package model;
|
|
|
|
import com.fasterxml.jackson.databind.JsonNode;
|
|
import com.fasterxml.jackson.databind.ObjectMapper;
|
|
|
|
import java.io.File;
|
|
import java.io.IOException;
|
|
import java.util.List;
|
|
import java.util.stream.Collectors;
|
|
|
|
/*
|
|
Klasa odczytujaca oraz wypisujaca dostepne miasta z pliku .json.
|
|
Wykorzystanie strumienia.
|
|
*/
|
|
|
|
public class CityNames {
|
|
public static void cityNamesRead(String filePath) {
|
|
ObjectMapper objectMapper = new ObjectMapper();
|
|
|
|
try {
|
|
JsonNode jsonArray = objectMapper.readTree(new File(filePath));
|
|
|
|
List<String> cityNames = jsonArray
|
|
.findValuesAsText("name")
|
|
.stream()
|
|
.collect(Collectors.toList());
|
|
|
|
System.out.println("Dostępne miasta:");
|
|
cityNames.forEach(System.out::println);
|
|
|
|
} catch (IOException e) {
|
|
e.printStackTrace();
|
|
}
|
|
}
|
|
} |