Second class not resetting when testing from another class - java

I have a class ("TestProject") that is supposed to print the output of another class to the console, each time using a different input text file (e.g. "input01.txt", "input02.txt").
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.PrintStream;
public class TestProject {
public static void main(String[] args) throws IOException {
for(int inputNumber = 2; inputNumber <= 7; inputNumber++) {
String[] arguments = new String[] {"input" + String.format("%02d", inputNumber) + ".txt", "1"};
ByteArrayOutputStream baos = new ByteArrayOutputStream();
PrintStream newPS = new PrintStream(baos);
PrintStream oldPS = System.out;
System.setOut(newPS);
Project.main(arguments);
System.out.flush();
System.setOut(oldPS);
newPS.close();
System.out.println(baos.toString());
}
}
}
This works correctly for the first input file, as seen below:
arguments: "input02.txt" 0
1, 3, 80.5, 20, 60, 0, Stone, 0, 0
2, 3, 80.5, 20, 60, 0, Flame, 2, 2
1, 4, 80.0, 20, 60, 0, Stone, 0, 1
2, 4, 80.0, 20, 60, 0, Flame, 2, 2
1, 5, 79.5, 20, 60, 0, Stone, 0, 2
2, 5, 79.5, 20, 60, 0, Flame, 2, 2
1, 6, 79.0, 20, 60, 0, Stone, 1, 1
2, 6, 79.0, 20, 60, 0, Flame, 2, 2
But after this, every subsequent test prints only the final output of the first test:
arguments: "input03.txt" 0
1, 6, 79.0, 20, 60, 0, Stone, 1, 1
2, 6, 79.0, 20, 60, 0, Flame, 2, 2
arguments: "input04.txt" 0
1, 6, 79.0, 20, 60, 0, Stone, 1, 1
2, 6, 79.0, 20, 60, 0, Flame, 2, 2
arguments: "input05.txt" 0
1, 6, 79.0, 20, 60, 0, Stone, 1, 1
2, 6, 79.0, 20, 60, 0, Flame, 2, 2
arguments: "input06.txt" 0
1, 6, 79.0, 20, 60, 0, Stone, 1, 1
2, 6, 79.0, 20, 60, 0, Flame, 2, 2
arguments: "input07.txt" 0
1, 6, 79.0, 20, 60, 0, Stone, 1, 1
2, 6, 79.0, 20, 60, 0, Flame, 2, 2
I thought that this might have something to do with calling the main() method of another class multiple times, but nothing online seems to suggest that this is an issue.
When running the main program separately, the output works fine for all input files. This leads me to think that the problem exists in this short excerpt.
Thanks in advance, to all.

Related

How to Convert String of numbers to a distinct ArrayList

I have a troubles with an application.
I would like to move my String into this ArrayList.
My String contains numbers like 15 17 18 110 113 (numbers from 1 do 200).
I have about 80 numbers in one String, eg.:
I/System.out: 15 13 13 12 12 11 11 21 21 39 39 38 38 40 40 41 41 42 42 43 43 74 74 75 75 76 76 77 77 78 78 80 80 99 99 100 100 102 102 103 103 105 105 104
While I have List<String> tmpPath = new ArrayList<>(); and I have tried two different methods:
1.
public void transferStringToArray(string s1){
for(int i = 0; i < s1.length(); i++){
int extra = 0;
if(s1.charAt(i) != ' '){
String x = Character.toString(s1.charAt(i));
tmpPath.add(extra, x);
else extra++;
}
}
where the output is:
I/System.out: [4, 0, 1, 5, 0, 1, 5, 0, 1, 3, 0, 1, 3, 0, 1, 2, 0, 1, 2, 0, 1, 0, 0, 1, 0, 0, 1, 9, 9, 9, 9, 0, 8, 0, 8, 8, 7, 8, 7, 7, 7, 7, 7, 6, 7, 6, 7, 5, 7, 5, 7, 4, 7, 4, 7, 3, 4, 3, 4, 2, 4, 2, 4, 1, 4, 1, 4, 0, 4, 0, 4, 8, 3, 8, 3, 9, 3, 9, 3, 1, 2, 1, 2, 1, 1, 1, 1, 2, 1, 2, 1, 3, 1, 3, 1, 5, 1]
(numbers are printed from last to first number which is wrong with my assumptions)
2.
public void transferStringToArray(string s1){
for(int i = 0; i < s1.length(); i++)
if(s1.charAt(i) != ' '){
String x = Character.toString(s1.charAt(i));
tmpPath.add(x);
}
where the output is in good order, but one number means one index of an array.
I/System.out: [1, 5, 1, 3, 1, 3, 1, 2, 1, 2, 1, 1, 1, 1, 2, 1, 2, 1, 3, 9, 3, 9, 3, 8, 3, 8, 4, 0, 4, 0, 4, 1, 4, 1, 4, 2, 4, 2, 4, 3, 4, 3, 7, 4, 7, 4, 7, 5, 7, 5, 7, 6, 7, 6, 7, 7, 7, 7, 7, 8, 7, 8, 8, 0, 8, 0, 9, 9, 9, 9, 1, 0, 0, 1, 0, 0, 1, 0, 2, 1, 0, 2, 1, 0, 3, 1, 0, 3, 1, 0, 5, 1, 0, 5, 1, 0, 4]
Do you have any ideas how to move full number as one index separated by a space?
Also I have one more question:
How could I delete all repeated numbers? I know, that numbers are printed once or twice but in the result I have to have unique numbers.

All you need to do is a split with space s.split("\\s+"), and then put the result in a Set like this:
Set<String> set = new HashSet<>(Arrays.asList(s.split("\\s+")));
Or if you want to maintain the order, you can use :
Set<String> set = new LinkedHashSet<>(Arrays.asList(s.split("\\s+")));
If you are looking to use List and nothing else, then you can use, distinct like so :
List<String> set = Arrays.stream(s.split("\\s+"))
.distinct()
.collect(Collectors.toList());
Outputs
[15, 13, 12, 11, 21, 39, 38, 40, 41, 42, 43, 74, 75, 76, 77, 78, 80, 99, 100, 102, 103, 105, 104]

To convert space separated string into an array list :
You first need to split your string into an string array and then convert it into array list
public void convertStringToList() {
String stringToSplit = "15 13 13 12";
String[] splittedString = stringToSplit.split(" "); // Will split string based upon the space into an string array
List<String> listOfStrings = Arrays.asList(splittedString);
}
To remove the duplicates, you can insert all the array lists value into a Set. A set is a data structure in java which stores only unique values.
Set<String> uniqueValuesSet = new HashSet<>(listOfStrings);
for(String str : uniqueValuesSet) {
System.out.println(str);
}
In 2nd point, you might see your output is in random order. That is because HashSet doesn't maintain order of elements. If you need to maintain order as well. Use LinkedHashSet.
Set<String> uniqueValuesSet = new LinkedHashSet<>(listOfStrings);
for(String str : uniqueValuesSet) {
System.out.println(str);
}
Note: This solution assumes number in the original string are single space separated. If you want solution irrespective of number of spaces between 2 numbers, replace this line in point 1
String[] splittedString = stringToSplit.split(" ");
To
String[] splittedString = stringToSplit.split("\\s+");

I'm sticking with Set, as MaciejB wanted to eliminate duplicates and that's the contract of Set.
And, as MaciejB mentioned order too, I parsed them as Integer & put 'em in a TreeSet.
That looks like this:
Set<Integer> set = Stream.of(s.split("\\s+")).map(Integer::parseInt).collect(Collectors.toCollection(TreeSet::new));
Or if you prefer multiple lines:
Set<Integer> set = Stream // Result is ordered, parsed Set
.of(s.split("\\s+")) // -> String[]
.map(Integer::parseInt) // -> Integer[] for order in TreeSet
.collect(Collectors.toCollection(TreeSet::new)); // no duplicates
Outputs:
[11, 12, 13, 15, 21, 38, 39, 40, 41, 42, 43, 74, 75, 76, 77, 78, 80, 99, 100, 102, 103, 104, 105]

Wrong arraylist output with duplicate result in 2 cicle for

for(int i = 0; i<listut.size();i+=2){
String query3="select........";
ResultSet rs3= con.createStatement().executeQuery(query3);
while(rs3.next())
{
idserv= rs3.getString("IDservices");
nameserv= rs3.getString("Name");
autorizzato = rs3.getString("Autorizzato");
listab.add(idserv);
listab.add(nameserv);
listab.add(autorizzato);
}}
I've a problem with the ouput of arraylist, the result is duplicated, in arraylist listut i've 3 elements.. for each element .
First element:
[1, getStructureAgent, 1, 2, searchStructureAgent, 0, 3, getZona, 0, 4, getFido, 0, 5, getCostruttore, 0, 6, searchAgent, 0, 7, getPayment, 0, 8, searchGruppo, 0, 9, getArticolo, 0, 10, searchPayment, 0, 11, searchZona, 0, 12, getGruppo, 0, 13, getCustomers, 0, 14, searchArticolo, 0, 15, getSottoGruppo, 0, 16, getAgent, 0, 17, getCustomer, 0, 18, searchCondizioniBancarieClienteOasi, 0, 19, getArboAnagrafica, 0, 20, getFidoClienteOasi, 0, 21, searchSottoGruppo, 0, 22, searchCostruttore, 0]
Second element
[1, getStructureAgent, 1, 2, searchStructureAgent, 0, 3, getZona, 0, 4, getFido, 0, 5, getCostruttore, 0, 6, searchAgent, 0, 7, getPayment, 0, 8, searchGruppo, 0, 9, getArticolo, 0, 10, searchPayment, 0, 11, searchZona, 0, 12, getGruppo, 0, 13, getCustomers, 0, 14, searchArticolo, 0, 15, getSottoGruppo, 0, 16, getAgent, 0, 17, getCustomer, 0, 18, searchCondizioniBancarieClienteOasi, 0, 19, getArboAnagrafica, 0, 20, getFidoClienteOasi, 0, 21, searchSottoGruppo, 0, 22, searchCostruttore, 0, 1, getStructureAgent, 1, 2, searchStructureAgent, 0, 3, getZona, 0, 4, getFido, 0, 5, getCostruttore, 0, 6, searchAgent, 0, 7, getPayment, 0, 8, searchGruppo, 0, 9, getArticolo, 0, 10, searchPayment, 0, 11, searchZona, 0, 12, getGruppo, 0, 13, getCustomers, 0, 14, searchArticolo, 0, 15, getSottoGruppo, 0, 16, getAgent, 0, 17, getCustomer, 0, 18, searchCondizioniBancarieClienteOasi, 0, 19, getArboAnagrafica, 0, 20, getFidoClienteOasi, 0, 21, searchSottoGruppo, 0, 22, searchCostruttore, 0]
In the second cicle the array contains result of first cicle

If you want listab to start each iteration of the for loop being empty, you need to make it empty at the top of the body of that loop.

How to select needed values out of a .txt file?

txt file containing the characteristics(estrato, size, age, bedrooms, bathrooms, floor, and label) of 205 apartments in Medellin, Colombia and i need to load the file and save each of the characteristics in their own specific variable so i can pass them through a conversions method to normalize the data to later be used in a distance formula for KNN classification. I have the current code:
import java.util.*;
import java.io.*;
/**
* collection of properties
* using arraylist
*/
public class Apartments
{
ArrayList<Property> apartmentList = new ArrayList<>();
String estrato = " ";
String size = " ";
String age = " ";
String beds = " ";
String baths = " ";
String floor = " ";
String label = " ";
public void convertFile () throws FileNotFoundException {
Scanner input = new Scanner(new File("ApartmentsFullList.txt"));
while(input.hasNextLine()){
String line = input.nextLine();
Scanner lineScan = new Scanner(line);
for(int i = 0; i < line.length(); i++){
char start = line.charAt(i);
if(start == '{'){
estrato = lineScan.next();
size = lineScan.next();
age = lineScan.next();
beds = lineScan.next();
baths = lineScan.next();
floor = lineScan.next();
}
}
System.out.println(estrato + " " + size + " " + age + " " + beds + " " +
baths + " " + floor + " " + label);
}
}
}
and the following .txt file:
01-Los Balsos 1380m {6, 430, 4, 3, 4, 22, Luxury},
02-El Tesoro 1100m {6, 263, 2, 3, 4, 21, Luxury},
03-Las Lomas 1030m {6, 270, 2, 3, 4, 16, Luxury},
04-Las Lomas 1020m {6, 270, 2, 3, 6, 18, Luxury},
05-Las Lomas 2600m {6, 780, 3, 7, 9, 33, Luxury},
06-Los Balsos 1100m {6, 380, 3, 4, 5, 14, Luxury},
07-Laureles 1350m {6, 494, 2, 3, 5, 17, Luxury},
08-Los Balsos 1100m {6, 445, 3, 4, 5, 10, Luxury},
09-Alejandria 1584m {6, 288, 1, 3, 4, 25, Luxury},
10-La Florida 1200m {6, 425, 3, 4, 6, 12, Luxury},
11-San Lucas 1200m {6, 200, 1, 3, 4, 19, Luxury},
12-Los Balsos 1250m {6, 347, 3, 4, 6, 23, Luxury},
13-Las Lomas 1300m {6, 350, 2, 6, 6, 9, Luxury},
14-El Tesoro 1350m {6, 240, 1, 3, 5, 11, Luxury},
15-San Lucas 2800m {6, 760, 1, 5, 8, 31, Luxury},
16-El Tesoro 1300m {6, 315, 2, 4, 5, 8, Luxury},
17-Las Palmas 1820m {6, 318, 1, 4, 7, 24, Luxury},
18-Las Lomas 1500m {6, 429, 1, 3, 5, 13, Luxury},
19-El Tesoro 2000m {6, 500, 3, 5, 7, 11, Luxury},
20-San Lucas 1800m {6, 603, 3, 5, 5, 17, Luxury},
21-El Tesoro 1300m {6, 315, 1, 3, 5, 5, Luxury},
22-El Tesoro 1300m {6, 294, 1, 4, 5, 16, Luxury},
23-San Lucas 2400m {6, 300, 1, 5, 5, 21, Luxury},
24-El Poblado 1180m {6, 382, 2, 3, 4, 12, Luxury},
25-Castropol 1190m {6, 302, 1, 3, 4, 26, Luxury},
26-El Poblado 2500m {6, 500, 1, 5, 8, 30, Luxury},
27-La Calera 1600m {6, 520, 3, 7, 7, 21, Luxury},
28-Castropol 1190m {6, 302, 1, 4, 4, 32, Luxury},
29-Las Lomas 1530m {6, 338, 2, 3, 5, 24, Luxury},
30-Superior 5100m {6, 578, 1, 4, 6, 27, Luxury},
31-Alejandria 930m {6, 186, 1, 4, 4, 19, Upper},
32-Lleras 940m {6, 175, 2, 2, 3, 11, Upper},
33-El Poblado 900m {6, 181, 1, 3, 3, 6, Upper},
34-San Lucas 800m {6, 175, 2, 3, 4, 7, Upper},
35-El Poblado 890m {5, 175, 3, 2, 3, 5, Upper},
36-San Lucas 900m {6, 148, 1, 3, 4, 19, Upper},
37-El Tesoro 800m {6, 180, 2, 3, 5, 21, Upper},
38-Los Balsos 930m {6, 186, 2, 3, 4, 12, Upper},
39-Los Balsos 990m {5, 300, 4, 3, 4, 4, Upper},
40-El Poblado 960m {6, 153, 1, 2, 3, 12, Upper},
41-El Poblado 900m {6, 186, 2, 3, 4, 6, Upper},
42-El Poblado 970m {6, 225, 4, 3, 5, 2, Upper},
43-San Lucas 920m {5, 168, 1, 3, 4, 4, Upper},
44-Laureles 920m {5, 230, 3, 3, 5, 22, Upper},
45-Superior 880m {5, 227, 2, 3, 4, 12, Upper},
46-El Poblado 980m {5, 298, 4, 4, 5, 11, Upper},
47-La Calera 890m {6, 251, 2, 3, 3, 9, Upper},
48-Los Balsos 950m {6, 285, 3, 4, 7, 3, Upper},
49-San Lucas 860m {6, 162, 1, 3, 4, 13, Upper},
50-Envigado 750m {5, 153, 1, 3, 3, 7, Upper},
51-M de Oro 830m {6, 209, 2, 3, 5, 18, Upper},
52-Superior 850m {6, 220, 2, 4, 4, 15, Upper},
53-Inferior 840m {6, 171, 1, 4, 5, 14, Upper},
54-Inferior 860m {5, 300, 4, 4, 6, 8, Upper},
55-San Lucas 850m {6, 175, 3, 3, 3, 11, Upper},
56-El Poblado 680m {6, 290, 3, 4, 3, 17, Upper},
57-Tomatera 805m {6, 251, 2, 4, 4, 4, Upper},
58-El Poblado 850m {6, 260, 2, 4, 4, 7, Upper},
59-Vizcaya 875m {5, 265, 4, 3, 5, 16, Upper},
60-Castropol 750m {5, 298, 4, 4, 5, 11, Upper},
61-Los Balsos 550m {5, 113, 1, 2, 3, 13, UM},
62-El Poblado 599m {6, 130, 1, 3, 2, 3, UM},
63-El Poblado 550m {6, 120, 1, 3, 3, 7, UM},
64-La Linde 520m {6, 109, 1, 2, 3, 5, UM},
65-El Poblado 560m {5, 120, 2, 2, 3, 7, UM},
66-El Poblado 530m {6, 172, 4, 3, 4, 8, UM},
67-El Poblado 610m {6, 144, 2, 3, 4, 7, UM},
68-El Tesoro 555m {6, 152, 2, 3, 4, 11, UM},
69-Villa Paula 520m {6, 165, 3, 3, 4, 1, UM},
70-La Calera 630m {6, 135, 1, 4, 4, 9, UM},
71-Simesa 521m {6, 124, 2, 3, 2, 16, UM},
72-El Tesoro 550m {6, 215, 4, 3, 3, 2, UM},
73-La Linde 520m {6, 160, 3, 3, 4, 4, UM},
74-La Florida 650m {5, 290, 4, 4, 4, 1, UM},
75-El Poblado 650m {6, 187, 2, 4, 4, 8, UM},
76-San Lucas 520m {6, 277, 4, 3, 4, 1, UM},
77-Castropol 550m {6, 117, 1, 3, 4, 5, UM},
78-San Lucas 570m {6, 140, 3, 4, 4, 7, UM},
79-Astorga 650m {6, 187, 2, 3, 5, 7, UM},
80-El Tesoro 545m {6, 136, 2, 2, 3, 6, UM},
81-Las Lomas 590m {6, 178, 3, 3, 4, 10, UM},
82-San Lucas 650m {6, 128, 1, 2, 3, 1, UM},
83-La Florida 650m {6, 230, 4, 4, 4, 8, UM},
84-Alejandria 600m {6, 210, 3, 3, 4, 1, UM},
85-Las Lomas 550m {5, 139, 1, 3, 3, 9, UM},
86-Los Parra 545m {6, 125, 1, 2, 3, 14, UM},
87-El Poblado 500m {6, 239, 4, 3, 3, 1, UM},
88-Alejandria 595m {6, 113, 1, 2, 3, 4, UM},
89-Castellana 600m {5, 200, 4, 3, 3, 2, UM},
90-Envigado 540m {5, 125, 1, 2, 3, 7, UM},
91 – {5, 109, 3, 4, 3, 8, Middle},
92- {5, 97, 3, 3, 3, 9, Middle},
93- {4, 93, 4, 3, 2, 6, Middle},
94- {6, 126, 3, 2, 3, 6, Middle},
95- {6, 124, 4, 3, 2, 1, Middle},
96- {5, 127, 3, 3, 3, 3, Middle},
97- {5, 115, 4, 2, 1, 2, Middle},
98- {5, 110, 4, 4, 2, 1, Middle},
99- {4, 72, 3, 3, 2, 5, Middle},
100- {5, 71, 1, 2, 1, 10, Middle},
101- {4, 72, 1, 2, 2, 19, Middle},
102- {4, 69, 3, 3, 2, 12, Middle},
103- {4, 90, 1, 3, 3, 24, Middle},
104- {3, 68, 4, 3, 2, 10, Middle},
105- {5, 76, 3, 1, 3, 13, Middle},
106- {6, 142, 4, 3, 4, 1, Middle},
107- {6, 71, 4, 3, 2, 2, Middle},
108- {3, 116, 4, 3, 5, 1, Middle},
109- {6, 55, 1, 2, 2, 3, Middle},
110- {6, 150, 4, 3, 3, 8, Middle},
112- {4, 80, 3, 2, 3, 4, Middle},
113- {3, 62, 3, 3, 2, 2, Middle},
114- {6, 154, 4, 3, 3, 9, Middle},
115- {4, 70, 3, 3, 2, 5, Middle},
116- {6, 119, 4, 3, 4, 3, Middle},
117- {3, 55, 3, 3, 2, 2, Middle}
118- {4, 72, 1, 2, 2, 4, Middle},
119- {5, 170, 3, 4, 3, 8, Middle}
120- {5, 98, 1, 3, 2, 17, Middle},
121- {5, 75, 4, 2, 2, 4, Middle},
122- {6, 76, 3, 2, 2, 3, Middle},
123- {3, 98, 4, 3, 2, 1, Middle},
124- {4, 64, 1, 2, 2, 9, Middle},
125- {5, 108, 4, 3, 2, 3, Middle},
126- {5, 125, 4, 4, 3, 1, Middle},
127- {5, 124, 3, 3, 3, 3, Middle},
128- {5, 106, 3, 3, 3, 5, Middle},
129- {5, 118, 4, 3, 3, 6, Middle},
130- {5, 88, 3, 3, 3, 1, Middle},
131- {5, 79, 3, 3, 2, 6, Middle},
132- {5, 120, 3, 3, 2, 4, Middle},
133- {6, 78, 1, 2, 2, 29, Middle},
134- {5, 95, 1, 3, 3, 12, Middle},
135- {5, 78, 4, 3, 2, 3, Middle},
136- {5, 80, 3, 3, 2, 4, Middle},
137- {5, 78, 3, 2, 2, 1, Middle},
138- {5, 120, 4, 3, 3, 4, Middle},
139- {5, 92, 3, 3, 2, 7, Middle},
140- {5, 110, 3, 3, 3, 2, Middle},
141- {6, 124, 1, 3, 3, 1, Middle},
142- {5, 96, 3, 3, 2, 9, Middle},
143- {5, 98, 4, 3, 3, 3, Middle},
144- {5, 92, 3, 2, 3, 8, Middle},
145- {4, 32, 4, 1, 1, 2, LM},
146- {3, 45, 3, 2, 1, 1, LM},
147- {3, 50, 2, 3, 1, 2, LM},
148- {3, 48, 2, 3, 2, 3, LM},
149- {2, 48, 1, 3, 2, 1, LM},
150- {2, 48, 1, 3, 2, 2, LM},
151- {4, 45, 2, 2, 1, 13, LM},
152- {4, 45, 3, 3, 1, 11, LM},
153- {4, 30, 1, 1, 1, 24, LM},
154- {3, 45, 2, 3, 1, 13, LM},
155- {3, 60, 2, 3, 1, 4, LM},
156- {3, 50, 2, 2, 1, 1, LM},
157- {3, 48, 2, 3, 1, 3, LM},
158- {3, 30, 1, 1, 1, 2, LM},
159- {4, 30, 3, 2, 1, 1, LM},
160- {3, 37, 1, 2, 1, 11, LM},
161- {3, 54, 2, 3, 2, 10, LM},
162- {3, 42, 1, 3, 1, 4, LM},
163- {3, 45, 2, 3, 1, 3, LM},
164- {3, 54, 3, 3, 2, 10, LM},
165- {3, 54, 2, 3, 2, 9, LM},
166- {3, 54, 1, 2, 1, 4, LM},
167- {3, 80, 4, 3, 2, 2, LM},
168- {3, 50, 1, 3, 2, 13, LM},
169- {3, 34, 2, 1, 1, 3, LM},
170- {3, 55, 1, 3, 1, 1, LM},
171- {2, 45, 1, 2, 1, 5, LM},
172- {3, 42, 3, 2, 1, 12, LM},
173- {3, 39, 1, 1, 1, 3, LM},
174- {4, 45, 3, 2, 1, 7, LM},
175- {3, 38, 1, 2, 1, 3, LM},
176- {2, 42, 1, 2, 1, 4, Lower},
177- {1, 43, 1, 3, 1, 4, Lower},
178- {2, 25, 1, 1, 1, 1, Lower},
179- {2, 42, 1, 2, 1, 1, Lower},
180- {1, 49, 1, 2, 1, 1, Lower},
181- {1, 46, 2, 3, 1, 2, Lower},
182- {2, 18, 1, 1, 1, 4, Lower},
183- {2, 45, 3, 3, 1, 2, Lower},
184- {3, 18, 1, 1, 1, 3, Lower},
185- {1, 40, 2, 2, 1, 2, Lower},
186- {2, 40, 2, 2, 1, 4, Lower},
187- {2, 41, 2, 3, 1, 2, Lower},
188- {3, 50, 3, 2, 1, 1, Lower},
189- {1, 44, 4, 2, 1, 1, Lower},
190- {1, 55, 3, 3, 1, 2, Lower},
191- {2, 17, 1, 1, 1, 1, Lower},
192- {1, 40, 3, 2, 1, 1, Lower},
193- {1, 41, 4, 2, 1, 4, Lower},
194- {1, 40, 2, 2, 1, 3, Lower},
195- {3, 16, 1, 1, 1, 2, Lower},
196- {3, 45, 1, 2, 1, 1, Lower},
197- {3, 48, 1, 3, 1, 2, Lower},
198- {2, 43, 1, 3, 1, 4, Lower},
199- {1, 50, 4, 2, 1, 1, Lower},
200- {1, 60, 4, 2, 1, 1, Lower},
201- {1, 40, 1, 2, 1, 2, Lower},
202- {3, 32, 1, 1, 1, 1, Lower},
203- {2, 44, 1, 2, 1, 3, Lower},
204- {1, 40, 4, 2, 1, 1, Lower},
205- {2, 36, 2, 2, 1, 5, Lower}
but I am getting all text when I print and all i need is what is inside the curly brackets
If anyone can please answer my question and/or has any guidance on KNN java implementation in my specific case it would be of great help!
Thanks

Delete this line
Scanner lineScan = new Scanner(line);
Move it to
if (start == '{') {
Scanner lineScan = new Scanner(line.substring(i));
estrato = lineScan.next();
size = lineScan.next();
age = lineScan.next();
beds = lineScan.next();
baths = lineScan.next();
floor = lineScan.next();
break; // consider adding a break here
}
The problem is you made the scanner for the whole line, before you even search where the { character is.

Java random distribution

I have an array of Objects which is [36] long. I have to randomly distribute these objects between owners, one object can only have one owner. The user can set 2 - 5 owners and it goes like this:
2 owners - 14 Object / owner - 8 Object without owner
3 owners - 10 / owner - 6 empty
4 owners - 8 / owner - 4 empty
5 owners - 6 / owner - 6 empty
I want to ask for example in case 2 how can i set 6 random Objects owner to 0 (without owner), and 10 random Objects for each owner?

It's not exactly clear from the question what you are trying to accomplish, but you can achieve some shuffling with the Collections.shuffle() function.
int[] shuffle = { 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2 };
List<Integer> intList = new ArrayList<Integer>();
for (int i : shuffle) {
intList.add(i);
}
Collections.shuffle(intList);
System.out.println(intList);
One possible result:
[1, 2, 0, 2, 2, 1, 1, 1, 2, 2, 2, 1, 0, 1, 1, 0, 0, 2, 1, 2, 2, 1, 0, 1, 0, 0, 2, 1, 2, 2, 1, 2, 1, 2, 0, 1]
References:
shuffle

Problem Solved
First i created a 2d array which contains the 4 different case
public int[][] shuffle = {{ 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2},
{ 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3},
{ 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4},
{ 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5}};
Then in a method i copied out the needed row to a new array based on user input. I used Fisher - Yates shuffle on the primitive 1d array and looped threw the Objects where i called a setter methor for each owner.
Looks like this:
for(int i = 0; i < objectArray.length; i++){
int helper = shuffle1d[i];
objectArray[i].setObjectOwner(helper);
}

Reversi/Othello evaluation function

I've written my own Reversi player, based on the MiniMax algorithm, with Alpha-Beta pruning, but in the first 10 moves my evaluation function is too slow. I need a good early-game evaluation function.
I'm trying to do it with this matrix (corresponding to the board) which determines how favourable that square is to have:
{ 30, -25, 10, 5, 5, 10, -25, 30,},
{-25, -25, 1, 1, 1, 1, -25, -25,},
{ 10, 1, 5, 2, 2, 5, 1, 10,},
{ 5, 1, 2, 1, 1, 2, 1, 5,},
{ 5, 1, 2, 1, 1, 2, 1, 5,},
{ 10, 1, 5, 2, 2, 5, 1, 10,},
{-25, -25, 1, 1, 1, 1, -25, -25,},
{ 30, -25, 10, 5, 5, 10, -25, 30,},};
But it doesn't work well.
Have you even written an early-game evaluation function for Reversi?

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