Имам огромен проблем с този Java проект. Трябва да напиша клас, който да следи името, породата, датата и теглото на кучето. Трябва да въведа файл, съдържащ по един ред на куче. Имам нужда от инструмент за достъп, модификатор, Arraylist и метод toString. След това основната програма трябва да определи най-лекото и най-тежкото куче.
import java.io.*;
import java.util.*;
import java.util.ArrayList;
public class Kennel
{
public static void main(String args[])
{
String line = ""; // string var to hold entire line
if (args.length < 1)
{
System.out.println("\n You forgot to put a file name on the command line.");
System.exit(1);
};
String inFile = args[0]; // file name off command line
Scanner sc = null;
try
{
sc = new Scanner(new File(inFile));
}
catch (Exception e)
{
System.out.println("File not found");
System.exit(1);
}
// print a message explaining the purpose of the program.
System.out.println("\nThis program inputs file ");
System.out.println(args[0]);
System.out.println("and outputs information about all the dogs in the registry.");
System.out.println("\nWritten by Phil Trout.");
System.out.println();
System.out.println("Property "+"Name "+"Value ");
System.out.println();
// Loop
//double heaviest = 0.0;
//double lightest = 1000.0;
while(sc.hasNextLine())
{
// read a line from the input file via sc into line
line = sc.nextLine();
}
{
//got from email infromation
StringTokenizer stk = new StringTokenizer(line);
String name = stk.nextToken();
String breed = stk.nextToken();
int month = Integer.parseInt(stk.nextToken());
int day = Integer.parseInt(stk.nextToken());
int year = Integer.parseInt(stk.nextToken());
double weight = Double.parseDouble(stk.nextToken());
Dog list = new Dog(name, breed, month, day, year, weight);
ArrayList<Dog> dogs = new ArrayList<Dog>();
dogs.add(list);
double firstweight = dogs.get(0).getWeight();
System.out.println(firstweight);
for (int i = 0; i< dogs.size(); i++)
{
double newweight = dogs.get(i).getWeight();
}
public class Dog
{
private String dogName;
private String dogBreed;
private int dogMonth;
private int dogDay;
private int dogYear;
private double dogWeight;
public Dog(String name, String breed, int month, int day, int year, double weight)
{
dogName = name;
dogBreed = breed;
dogMonth = month;
dogDay = day;
dogYear = year;
dogWeight = weight;
}
public String getName()
{
return dogName;
}
public String getBreed()
{
return dogBreed;
}
public String toString()
{
return String.format("%d/%d/%d", dogMonth, dogDay, dogYear);
}
public double getWeight()
{
return dogWeight;
}