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Type: Posts; User: flex567

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  1. Replies
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    [RESOLVED] Previous posts

    Is there a way to see all or most of my(the ones I created) previsous threads ?

    EDIT: I figured out already.
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    compile a program in terminal with .jar

    I created Myproject folder. Inside I have 3 folders:
    /lib
    /src
    /bin

    Inside src there is a .java file:



    public class hello_world{
  3. Re: parse a .xml with just C++ Standard Library

    Do you have an example of a program that parses a fixed file format ( .xml file) ?
  4. Re: parse a .xml with just C++ Standard Library

    I think I first have to figure out what exactly should this program do.
  5. Re: parse a .xml with just C++ Standard Library

    I just found an interesting program on that site.
  6. Re: parse a .xml with just C++ Standard Library

    I know how to use fstream but an example program that parses with fstream would be great.




    I should write a function that calculates the difference between the chosen course and the one in a...
  7. Re: parse a .xml with just C++ Standard Library

    to parse data from an .xml document.

    example of a document

    Pretty much all the lines are like the ones below


    So I guess I have to do it with fstream? Do you have an example program that...
  8. Re: parse a .xml with just C++ Standard Library

    that is the assignment.

    The file is .xml. So I have to use fstream and parse each word individualy or something like that. Do you have an example program of this kind?
  9. parse a .xml with just C++ Standard Library

    How can I parse an .xml file with just C++ Standard Library? I hope you can tell me a hint or simple guidance.
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    Re: package systtem doesn't exist

    how can I do that?
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    Re: package systtem doesn't exist

    I already found the solution
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    Re: package systtem doesn't exist

    Message to admin: please rename the thread to: javac: directory not found: ../classes
  13. Replies
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    package systtem doesn't exist

    why do I get this error, after I run this command:


    javac -d ../classes *.java


    the error:


    javac: directory not found: ../classes
  14. Re: non-static variable this cannot be referenced from a static context

    Can you explain what did I do wrong in this progam?
  15. non-static variable this cannot be referenced from a static context

    why do I get this message from the compiler for this program:


    DungeonTest.java:8: error: non-static variable this cannot be referenced from a static context
    DungeonGame d = new...
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    Re: Beginner's problems with generics

    I thought that println() can return 0, but even if it did, the compiler wouldn't throw an error?

    now it runs as expected:


    import java.util.*;

    public class BasicHolder<T> {
    T element;...
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    Re: Beginner's problems with generics

    I dont know, the entire line = 0?


    System.out.println(element.getClass().getSimpleName());


    or class String doesn't have getClass() method
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    Re: Beginner's problems with generics

    I fixed it now I get



    Exception in thread "main" java.lang.NullPointerException
    at BasicHolder.f(BasicHolder.java:8)
    at BasicHolder.main(BasicHolder.java:12)
  19. Replies
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    Re: Beginner's problems with generics

    And why do I get error at runtime for this program:


    import java.util.*

    public class BasicHolder<T> {
    T element;
    void set(T arg) { element = arg; }
    T get() { return element; }
    void f()...
  20. Replies
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    Beginner's problems with generics

    public static <T> T[] fill(T[] a, Generator<T> gen) {
    for(int i = 0; i < a.length; i++)
    a[i] = gen.next();
    return a;
    }

    What does the bolded symbol mean?
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    Re: import/package beginner's problems

    I solved this problem already, I thought this is a dead forum.
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    import/package beginner's problems

    I use terminal(newest JDK) in Ubuntu linux to compile source files. I Would like to compile these 2 files but when I try to compile them I get "package net.sssw.test does not exist..."
    In which...
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    Re: Problem with lists

    so every time you delete something with erase() iterator becomes invalid and you cannot increment an iterator anymore?

    from this webpage: http://www.cplusplus.com/reference/list/list/erase/ :
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    Re: Problem with lists

    Why this program crashes?



    #include <iostream>
    #include <string>
    #include <list>

    using namespace std;
  25. Re: Visual studio 2013 bug? no operator found which takes a right-hand operand

    oh I see, you can probably just delete this thread.
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