River

import java.util.ArrayList;


public class River {
    private int rows, columns;
    public void print(ArrayList<Whirpool> wh, ArrayList<Ship> sh){
        for (int i = 0; i < rows; i++){
            for (int j = 0; j < columns; j++){
                int p = 0;
                for(Whirpool element: wh){
                    if(p == 0 && element.getCol() == j && element.getPos() == i && element.isAlive()){
                        System.out.print("W");
                        p = 1;
                    }
                    if(p == 0){
                        for(Ship elemnt : sh){
                            if(element.getCol() == j && element.getPos() == i && element.isAlive()){
                                System.out.print("S");
                                p = 1;
                            }
                        }
                    }
                    if(p == 0){
                        System.out.print(".");
                    }
                }
            }
            System.out.println();
        }
    }
}