City.java

package tsp;

public class City {
    private int x;
    private int y;
    
    /**
     * Initalize a city
     * 
     * @param x X position of city
     * @param y Y position of city
     */
    public City(int x, int y){
        this.x = x;
        this.y = y;
    }
    
    /**
     * Calculate distance from a city
     * 
     * @param city The city to calculate the distance from
     * @return distance The distance from the given city
     */
    public double distanceFrom(City city){
        // Give difference in x,y
        double deltaXSq = Math.pow((city.getX() - this.getX()), 2);
        double deltaYSq = Math.pow((city.getY() - this.getY()), 2);
        
        // Calculate shortest path
        double distance = Math.sqrt(Math.abs(deltaXSq + deltaYSq));
        return distance;
    }
    
    /**
     * Get x position of city
     * 
     * @return x X position of city
     */
    public int getX(){
        return this.x;
    }
    
    /**
     * Get y position of city
     * 
     * @return y Y position of city
     */
    public int getY(){
        return this.y;
    }
}