Question

Having error problem with my code.

HouseListTester:

import java.util.*;
//Hard codes the criteria
public class HouseListTester {
static HouseList availableHouses;
public static void main(String []args) {
availableHouses = new HouseList("C:\\Users\\jvs34\\Downloads\\houses.txt");
Criteria c1 = new Criteria(1000, 500000, 100, 5000, 0, 10);
Criteria c2 = new Criteria(1000, 100000, 500, 1200, 0, 3);
Criteria c3 = new Criteria(100000, 200000, 1000, 2000, 2, 3);
Criteria c4 = new Criteria(200000, 300000, 1500, 4000, 3, 6);
Criteria c5 = new Criteria(100000, 500000, 2500, 5000, 3, 6);
System.out.println("Test 1: ");
availableHouses.printHouses(c1);
System.out.println("Test 2: ");
availableHouses.printHouses(c2);
System.out.println("Test 3: ");
availableHouses.printHouses(c3);
System.out.println("Test 4: ");
availableHouses.printHouses(c4);
System.out.println("Test 5: ");
availableHouses.printHouses(c5);
}
}

HouseList:

import java.io.*;
import java.util.*;
//Contains arraylist of House objects that comes from house.txt to allow for easy searching
public class HouseList {
ArrayList houseList = new ArrayList();
//Gets house.txt file for future use
public HouseList(String HouseLists) {
houseList = new ArrayList();
Scanner myFileIn = null;
try
{
myFileIn = new Scanner(new File("C:\\Users\\jvs34\\Downloads\\houses.txt"));
}
catch (FileNotFoundException e)
{
System.out.println("File: +((C:\\Users\\jvs34\\Downloads\\houses.txt))+ is not found");
}
//Gets house info from text file to place into arraylist
String address1;
int price1;
int area1;
int numBedrooms1;
House h1;
  
while(myFileIn.hasNextLine())
{
address1 = myFileIn.next();
price1 = myFileIn.nextInt();
area1 = myFileIn.nextInt();
numBedrooms1 = myFileIn.nextInt();
  
h1 = new House(address1, price1, area1, numBedrooms1);
houseList.add(h1);
}
}
//prints houses that meet criteria
public void printHouses(Criteria c) {
for(int i =0;i System.out.println(houseList.get(i).toString());
}
}
//returns string of details of houses
public String getHouses(Criteria c) {
String ans = "";
for(int i = 0;i < houseList.size();i++)
{
if(houseList.get(i).satisfies(c))
{
ans = ans + houseList.get(i).toString() + "\n";
}
}
return ans;
}
}

House:

import java.util.*;
//Represents details of houses for sale
public class House {
public String address;
public int price;
public int area;
public int numberOfBedrooms;
//constructor
public House(String addr, int p, int a, int bedroom) {
address = addr;
price = p;
area = a;
numberOfBedrooms = bedroom;
}
//gets address
public String getAddress() {
return address;
}
//gets price
public int getPrice() {
return price;
}
//gets area
public int getArea() {
return area;
}
//gets rooms
public int getRoom() {
return numberOfBedrooms;
}
//Compare price, area, and rooms
public boolean satisfies(Criteria c) {
if(price < c.getMinimumPrice() || price > c.getMaximumPrice())
{
return false;
}
if(area < c.getMinimumArea() || area > c.getMaximumArea())
{
return false;
}
if(numberOfBedrooms < c.getMinimumNumberOfBedrooms() || numberOfBedrooms > c.getMaximumNumberOfBedrooms())
{
return false;
}
return true;
}
//print it out into string
public String toString() {
return (address+ " "+ price + " " + area + " " + numberOfBedrooms);
}
}

I cannot get it to read from this text file and make an array list from it:

123-canal-street 129000 1800 3
124-main-street 89000 1600 3
125-college-street 199000 2000 4
126-lincoln-street 56000 1200 2
127-state-street 82000 1500 3
223-canal-street 385000 4500 5
224-main-street 40000 800 2
225-college-street 37999 800 2
226-lincoln-street 125000 1200 2
227-state-street 130000 1250 3
323-canal-street 60000 900 2
324-main-street 80000 1000 2
325-college-street 45000 800 1
326-lincoln-street 63000 900 1
327-state-street 145000 1400 3
423-canal-street 199999 2000 4
424-main-street 250000 3500 5
425-college-street 350000 4600 6
426-lincoln-street 133000 1300 2
427-state-street 68000 850 1

If you could help me figure out how to fix the code to read the file and make an arraylist it would be greatly appreciated.

Answer 1

Short Summary:

• Have solved the errors and attached the updated code for HouseList.java (only this class had errors)
• Attached sample output after the errors are gone.
• Note: Criteria class was not attached in the question, hence I created and used it.

**************Please do upvote to appreciate our time. Thank you!******************

Source Code:

HouseList.java

package com.core.java;
import java.io.*;
import java.util.*;
//Contains arraylist of House objects that comes from house.txt to allow for easy searching
public class HouseList {
   //Added type as <House> to solve the error in line no 50.
   ArrayList<House> houseList = new ArrayList<>();
   //Gets house.txt file for future use
   public HouseList(String HouseLists) {
       houseList = new ArrayList();
       Scanner myFileIn = null;
       try
       {
           //Added the argument as path argument to the File oject
           myFileIn = new Scanner(new File(HouseLists));
       }
       catch (FileNotFoundException e)
       {
           System.out.println("File: "+HouseLists+" is not found");
       }
       //Gets house info from text file to place into arraylist
       String address1;
       int price1;
       int area1;
       int numBedrooms1;
       House h1;

       while(myFileIn.hasNextLine())
       {
           address1 = myFileIn.next();
           price1 = myFileIn.nextInt();
           area1 = myFileIn.nextInt();
           numBedrooms1 = myFileIn.nextInt();

           h1 = new House(address1, price1, area1, numBedrooms1);
           houseList.add(h1);
       }
   }
   //prints houses that meet criteria
   //Modified the for loop to clear the compilation errors
   public void printHouses(Criteria c) {
       for(int i =0;i<houseList.size();i++)
       {
           System.out.println(houseList.get(i).toString());
       }
   }
   //returns string of details of houses
   public String getHouses(Criteria c) {
       String ans = "";
       for(int i = 0;i < houseList.size();i++)
       {
           if(houseList.get(i).satisfies(c))
           {
               ans = ans + houseList.get(i).toString() + "\n";
           }
       }
       return ans;
   }
}

Code Screenshot:

Error/Fix details:

Output:

Test 1:
123-canal-street 129000 1800 3
124-main-street 89000 1600 3
125-college-street 199000 2000 4
126-lincoln-street 56000 1200 2
127-state-street 82000 1500 3
223-canal-street 385000 4500 5
224-main-street 40000 800 2
225-college-street 37999 800 2
226-lincoln-street 125000 1200 2
227-state-street 130000 1250 3
323-canal-street 60000 900 2
324-main-street 80000 1000 2
325-college-street 45000 800 1
326-lincoln-street 63000 900 1
327-state-street 145000 1400 3
423-canal-street 199999 2000 4
424-main-street 250000 3500 5
425-college-street 350000 4600 6
426-lincoln-street 133000 1300 2
427-state-street 68000 850 1
Test 2:
123-canal-street 129000 1800 3
124-main-street 89000 1600 3
125-college-street 199000 2000 4
126-lincoln-street 56000 1200 2
127-state-street 82000 1500 3
223-canal-street 385000 4500 5
224-main-street 40000 800 2
225-college-street 37999 800 2
226-lincoln-street 125000 1200 2
227-state-street 130000 1250 3
323-canal-street 60000 900 2
324-main-street 80000 1000 2
325-college-street 45000 800 1
326-lincoln-street 63000 900 1
327-state-street 145000 1400 3
423-canal-street 199999 2000 4
424-main-street 250000 3500 5
425-college-street 350000 4600 6
426-lincoln-street 133000 1300 2
427-state-street 68000 850 1
Test 3:
123-canal-street 129000 1800 3
124-main-street 89000 1600 3
125-college-street 199000 2000 4
126-lincoln-street 56000 1200 2
127-state-street 82000 1500 3
223-canal-street 385000 4500 5
224-main-street 40000 800 2
225-college-street 37999 800 2
226-lincoln-street 125000 1200 2
227-state-street 130000 1250 3
323-canal-street 60000 900 2
324-main-street 80000 1000 2
325-college-street 45000 800 1
326-lincoln-street 63000 900 1
327-state-street 145000 1400 3
423-canal-street 199999 2000 4
424-main-street 250000 3500 5
425-college-street 350000 4600 6
426-lincoln-street 133000 1300 2
427-state-street 68000 850 1
Test 4:
123-canal-street 129000 1800 3
124-main-street 89000 1600 3
125-college-street 199000 2000 4
126-lincoln-street 56000 1200 2
127-state-street 82000 1500 3
223-canal-street 385000 4500 5
224-main-street 40000 800 2
225-college-street 37999 800 2
226-lincoln-street 125000 1200 2
227-state-street 130000 1250 3
323-canal-street 60000 900 2
324-main-street 80000 1000 2
325-college-street 45000 800 1
326-lincoln-street 63000 900 1
327-state-street 145000 1400 3
423-canal-street 199999 2000 4
424-main-street 250000 3500 5
425-college-street 350000 4600 6
426-lincoln-street 133000 1300 2
427-state-street 68000 850 1
Test 5:
123-canal-street 129000 1800 3
124-main-street 89000 1600 3
125-college-street 199000 2000 4
126-lincoln-street 56000 1200 2
127-state-street 82000 1500 3
223-canal-street 385000 4500 5
224-main-street 40000 800 2
225-college-street 37999 800 2
226-lincoln-street 125000 1200 2
227-state-street 130000 1250 3
323-canal-street 60000 900 2
324-main-street 80000 1000 2
325-college-street 45000 800 1
326-lincoln-street 63000 900 1
327-state-street 145000 1400 3
423-canal-street 199999 2000 4
424-main-street 250000 3500 5
425-college-street 350000 4600 6
426-lincoln-street 133000 1300 2
427-state-street 68000 850 1

**************Please do upvote to appreciate our time. Thank you!******************