[Java] 명품 자바 프로그래밍(Java Programming) 7장 실습문제 10번 Java / CSE

Location.java

 

 
package chap6;
 
public class Location {
    private String lname;
    private double latitude, longitude;
 
    public Location(String lname, double latitude, double longitude) {
        super();
        this.lname = lname;
        this.latitude = latitude;
        this.longitude = longitude;
    }
 
    public String getLname() {
        return lname;
    }
 
    public void setLname(String lname) {
        this.lname = lname;
    }
 
    public double getLatitude() {
        return latitude;
    }
 
    public void setLatitude(double latitude) {
        this.latitude = latitude;
    }
 
    public double getLongitude() {
        return longitude;
    }
 
    public void setLongitude(double longitude) {
        this.longitude = longitude;
    }
 
}
 

Ex10.java

 

 
package chap6;
 
import java.util.HashMap;
import java.util.Scanner;
 
public class Ex10 {
 
    public static void main(String[] args) {
        HashMap<String, Location> hv = new HashMap<String, Location>();
 
        Scanner scan = new Scanner(System.in);
 
        Location Seoul = new Location("Seoul", 37.5666977, 126.9764277);
        Location Daejeon = new Location("Daejeon", 36.351673, 127.386739);
        Location Daegu = new Location("Daegu", 35.87975, 128.5667);
        Location Busan = new Location("Busan", 35.179992, 129.076815);
        Location Suwon = new Location("Suwon", 37.263381, 127.028570);
 
        hv.put(Seoul.getLname(), Seoul);
        hv.put(Daejeon.getLname(), Daejeon);
        hv.put(Daegu.getLname(), Daegu);
        hv.put(Busan.getLname(), Busan);
        hv.put(Suwon.getLname(), Suwon);
 
        String city;
 
        while (true) {
            System.out.print("지명을 통한 검색 (종료시 q): ");
            city = scan.next();
 
            if (city.equals("q")) {
                scan.close();
                System.exit(0);
            }
 
            Location obj = hv.get(city);
            if (obj != null) {
                System.out.println("City Name: " + obj.getLname());
                System.out.println("Latitude: " + obj.getLatitude());
                System.out.println("Longitude: " + obj.getLongitude());
            } else {
                System.out.println("찾고자 하는 도시가 없습니다!!");
            }
        }
 
    }
 
}
 

실행결과: