Java DLL - UnsatisfiedLinkError When Moving To Package
Jan 13, 2015
I have a class that works only when in the default package. If I move the class to a package I receive UnsatisfiedLinkError.
This is the class in the default package(this works fine):
[code]
public class CsharpConsumer {
private native int reigsterAssemblyHandler(String str);
public CsharpConsumer() {
String dir = System.getProperty("user.dir");
System.load(dir+"dllscardJNICsharpBridge.dll");
int reigsterAssemblyHandler = reigsterAssemblyHandler(dir+"dllscard");
}
}
[/code]
If at the top of this class I add "package DLLUtils;"
the error is "Exception in thread "AWT-EventQueue-0" java.lang.UnsatisfiedLinkError:
My working directory is e:ajava. in package p1 i create two classes c1 and c2. net beans creates three files e:ajavap1srcp1, e:ajavap1srcc1, e:ajavap1srcc2. package runs without a hitch. i create another package p2 under e:ajava. i want to use class c1 in p2. pray what on earth should be my import statement in the p2 source code after the first statement 'package p2'. another related querry what should i include in my class path so as to gain access to c1 and c2 in source code of p2.
Basically I have a program that paints a simple object image. There are 5 of these objects altogether and different classes and methods have been set up to do this and this works correctly. The program currently also asks the user if they would like to change the colour of this object shape, and which shape they would like to change (user inputs a number 1-5) then the program will change the colour of this shape.
But the new task is for the user to input a number (1-5) to which shape they would like to MOVE position of. Hhow this would be done? Would there need to be different methods for changePositionX, changePositionY? The user needs to input the X and Y co ordinates and then this will move the selected shape to its NEW position in the current JFRAME.
Let's say hypothetically you're making a huge program and use a lot of imports (ex import java.util). If you only need a few specific things from java.util, will it use more memory importing java.util.* compared to only importing lets say java.util.Scanner, java.util.ArrayList, etc. Basically does importing a whole package use more (if any at all) memory than only importing specific package parts?
I have been following a 2d side scroller tutorial in java and have got the basics working, I changed the code a bit to make it so that the tiles and background are always moving, this worked as i intended.Within the character class:
if (speedX < 0) { centerX += speedX; } if (speedX == 0 || speedX < 0) { bg1.setSpeedX(0); bg2.setSpeedX(0);
[code]....
I wanted a way to make it so that if the character moves left, the tiles + background move slower. I am having issues with variable scope and setters/getters. Within the main game class, I have the code:
case KeyEvent.VK_LEFT: character.moveLeft(); character.setMovingLeft(true); break;
How can i include an if statement within the tile class that reads whether the character is moving left (determined from a keyPressed event in the main game class) and adjusts the speed of the tiles accordingly?I want to write something to the effect of:
try to make a game in this code i am trying to make the basics i have made a mouse it should move the game code is
import java.applet.Applet; import java.awt.*; public class Game extends gameLoop { public void init() { setSize( 854 , 480); Thread th = new Thread (this);
I'm learning about the printf command, and when I have it, it is not letting me ad an input. Here is my quick little program:
import java.util.Scanner; public class TestingPrintF { public static void main(String[] args) { // Create a Scanner Scanner input = new Scanner(System.in);
[Code] ....
The first section works good, but when i move down to the second part it just automatically finishes without letting me enter a phrase.
Okay, gotta be able to move the image when a key is pressed. When I test it, the image moves, but leaves the old image behind.
package Game; import java.awt.Component; import javax.swing.JOptionPane; public class Game { private Grid grid; //holds the grid used to store and display images private int userRow; //keep track of which row the user-controlled image appears in private int msElapsed; //keep track of the total amount of milliseconds that have elapsed since the start of the game
[Code] ....
Here is what I was given on instructions:
Complete the handleKeyPress method. Write the following line of code in the handleKeyPress method to check for a key press:
int key = grid.checkLastKeyPressed();
If the user pressed the up arrow (key == 38), move the user's image up one row (unless the user is already in the top row). Likewise, if the user pressed the down arrow (key == 40), move the user's image down one row (unless the user is already in the bottom row). Either way, make sure to update userRow.
Movement of the image can be accomplished by changing the value of userRow. Study how the initial image is displayed in the game constructor, then
Set the current image location to null
Update userRow to the new location and,
Set the image in the new value of userRow.
You should be able to move the user image up and down, and you should be prevented from moving the image off the screen.
I am writing code for a simple java game. The problem I am running into is that I have a moving icon (J button) that is controlled using the keyboard (arrows) and I also have stationary icons (J button). Is there a way to keep the moving icon from passing over the stationary icon? I would like the stationary icon to act like a wall.
I am trying to make a simple platformer game in Java. When I try to move the character I made it only moves over then immediately back
import java.awt.event.KeyEvent; public class UCC { private int xLoc; private int yLoc; private int xSpeed; private int ySpeed; private double gravity; private int size;
my new class had me download eclipse and for some reason it won't let me type anything until I create a document. creating a document creates a package and that lets me create a class which then it will let me start typing code...so wtf is wrong with eclipse and why is it bulling me into having this "package" line in my code when I never had anything like that in other ide's?
I have a folder of classes that I am packaging together. Some classes are being packaged and compiling just fine. My other classes in the same package, however, are saying that they cannot find these classes.
Though have been playing around with my ebook but finding it difficult to get along with the topic PACKAGE&INTERFACES, I find it challenging to write a package file despite the book I currently studying and online tutorial.. so I want a more explanatory format to comprehend the piece cos without knowing it.
I am trying to make a jar file in intelliJ. My directory that holds all the java classes is C:rafficProjectsrccege. In cege there is a package ui where there is a class GuiMain. And I have imported the GuiMain() in my Main() class.
I have this code lines:
package cege; import cege.ui.GuiMain;
and when I use the terminal in the intelliJ and write the command:
C: rafficProjectsrccege>javac *.java
I get this message:
Main.java:3: error: package cege.ui does not exist
import cege.ui.GuiMain;
but actually, I have already put this line in my code. what could be the problem?
Public Class{ Objects Constructor(){} ActionListener Method(){} Main Function()}
[Code]....
but I cannot declare variables in this method, how can I do this what can be the simplest method?
In addition: I've a marksheet class, a calculator class, & in main class I've 2 buttons one for marksheet & one for calculator, how can I make it so that if user clicks on marksheet button that class should be called & so?
This code doesn't recognise the package ( and therefore class ) timetest3, when I try to import it. The package I try to reference/call, follows, and works fine.
import javax.swing.JOptionPane; import timetest3.TimeTest3; public class timetest4 { public static void main(String args[]) { TimeTest3 time = new TimeTest3(); time.setTime(13,45,52);
i have a program in UNIX directory /home/me/java/src
package bin; public class HelloWorld { public static void main(String[] args) { System.out.println("Hello World"); } }
I have manage to compile it successfully(class file will be in bin directory) using command below: javac -d /home/t_bmf/java/bin HelloWorld.java
My problem now is how would I execute the class in bin directory in UNIX? I already tried different ways on how to execute it as suggested in my internet research The one I tried is this:
java $CLASSPATH:.:bin/HelloWorld but I got this error message: Exception in thread "main" java.lang.NoClassDefFoundError: :/:bin/HelloWorld Caused by: java.lang.ClassNotFoundException: :.:bin.HelloWorld
- The user runs CarDealer JFrame in which appears a JTexField in which he types in some characters (pretending he types some data about selling licence). - The user clicks on the JButton "Save" that stores the characters typed in inside a String variable called strLicence. - The user clicks on the JButton "Open 'Vehicle Form'" that opens the Vehicle JFrame. - Finally, in the Vehicle JFrame I want to write a code that can see/use the value of the String variable called strLicence.
In other words, for example, I want to store the value of strLicence in a new variable declared in the Vehicle class.
(Actually I'm working with a long and elaborate project for the dissertation of my bachelor's degree, so, for cutting to the chase, I simplified it by creating an essential JFrame project.)
how access levels work from subclasses and other packages, and I have discovered that a class cannot see it's own protected variable from another package which I thought it would be. I know that it says in the java docs "The protected modifier specifies that the member can only be accessed within its own package (as with package-private) and, in addition, by a subclass of its class in another package." but I thought that would also include it's own class.
Java Code:
package food; import food.fruit.*; public class Food { protected int protecte = 5; private int privat = 5; protected void method(){
Iam getting this error at run time while using this command "java mypack.Accountbalance". I have compiled this source code and got its class file that I have put in mypack package but now its showing this error ..
Here's the code : package mypack; class Balance { String name; double bal; Balance(String n ,double b)
[Code] .....
Error: exception in thread "main" java.lang.NoClassDefFoundError: mypack/Ba at mypack.Accountbalance.main(Accountbalance.java:25) used by: java.lang.ClassNotFoundException: mypack.Balance
