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Type: Posts; User: Slapy

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  1. Replies
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    [SOLVED] Re: Am I doing it right?

    I think it should execute 3 threads:


    for (int i = 0; i < 3; i++)
    pool.execute(new Counter(i));

    or am I wrong?

    --- Update ---
  2. Replies
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    [SOLVED] Re: Am I doing it right?

    oh am so sorry. I messed it up. It should be just 3 threads not 4 and it is just luck which thread will be selected. For example this is one of my outputs.
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    [SOLVED] Re: Am I doing it right?

    It is just simpl program that have to count form 0 to 50 and to do so have to use 3 threads and output have to be:

    Thread 1: 0
    Thread 0: 1
    Thread 2: 2
    Thread 2: 3
    Thread 1: 4
    ...
    Thread 0: 50
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    [SOLVED] Re: Am I doing it right?

    Yes, I was just asking if there is any way how to do it better.
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    [SOLVED] Re: Am I doing it right?

    So here is it after few changes I made:


    import java.util.concurrent.ExecutorService;
    import java.util.concurrent.Executors;
    import java.util.concurrent.atomic.AtomicInteger;

    public class...
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    [SOLVED] Am I doing it right?

    This are my two classes:


    import java.util.concurrent.ExecutorService;
    import java.util.concurrent.Executors;

    public class Main {

    public static int number = 0;
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    [SOLVED] Re: Help with setup db in JUnit tests.

    I find out that this


    ClientDataSource ds = new ClientDataSource();
    ds.setDatabaseName("testDB;create=true");
    con = ds.getConnection();

    is working.
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    [SOLVED] Help with setup db in JUnit tests.

    First I was using this way how to get connection and all was fine.


    con = DriverManager.getConnection("jdbc:derby:memory:datab;create=true");

    But now I have to change it to DataSource and how...
  9. Thread: java SQL problem

    by Slapy
    Replies
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    86

    [SOLVED] Re: java SQL problem

    System.out.println(rs); is getting back null but by my opinion it should get back that id or am I wrong?

    god am so dumb. Problem was in line PreparedStatement query =...
  10. Thread: java SQL problem

    by Slapy
    Replies
    2
    Views
    86

    [SOLVED] java SQL problem

    Connection connection = null;
    try {
    connection = DriverManager.getConnection("jdbc:derby://localhost:1527/database","root","root");
    connection.setAutoCommit(false);...
  11. Thread: Help wit regex

    by Slapy
    Replies
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    103

    [SOLVED] Help wit regex

    Hi can u help me? I have this string:


    {"hash":"ckF3DaT","title":"","description":"","width":3264,"height":2448,"size":372322,"ext":".jpg","animated":0,"datetime":"2013-01-21...
  12. Why is this code not returning me content of JSON?

    I think everything is ok but program will end with output null. In real code I have my own API_ID this is just replacement.

    Imgur JSON java reader - Pastebin.com

    --- Update ---

    What the ...?...
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    Re: Problem with method

    So that if have to break for if there are same values as you can see in first one it's all ok but in another ones it just failed I don't know why.

    [-100.0, -100.0]; [-100.0, -100.0]
    0; 5
    true
    ...
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    Re: Problem with method

    Try to add this
    System.out.println(vertices[0] +"; "+ pol.getVertex(i)); before
    if (vertices[0].equals(pol.getVertex(i) ) ) break; and you will see it have to break that shitty for but it doesn't...
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    Re: Problem with method

    Sorry for duplicate I don't know how to delete it.
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    Re: Problem with method

    yes I am sure and like I said values of 4 digits: 0 5 5 5 have to be numbers of variable in array with match but it doesn't.

    --- Update ---

    It's just little bit different. First number have to...
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    Re: Problem with method

    it's value of int i but like I said output have to be 0 3 1 1 or 1 4 2 2 not 0 5 5 5 and there is no case when match is not found so I think it's not necessary to fix.

    Edit: so value of i have to...
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    Re: Problem with method

    basically I am comparing two instances of class Vertex 2D.


    int i = 0;

    for (; i < vertices.length; i++) {

    if (vertices[0].equals(pol.getVertex(i) ) ) break;
    }
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    Problem with method

    public abstract class SimplePolygon {

    public abstract Vertex2D getVertex(int index) throws IllegalArgumentException;
    public abstract int getNumVertices();

    public double getArea() {

    ...
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