How do I go about adding an image into a java project with eclipse

Question

I ve done a lot of reading around SO and Google links   I have yet to figure out how to correctly add an image into an eclipse gui project is such a way that the system will recognize find it  I know there s some mumbojumbo about CLASSPATH but it probably shouldn t be this difficult to do   Let me start by describing what I m doing    If someone could correct me  it d be appreciated    Here is my method    I add the image using the  import wizard   right click   import    general    file   into an  import directory  I called   resources   Eclipse automatically creates a folder called  resources  in the eclipse package explorer s tree view  Right under the entry for  Referenced Libraries    Note   resources  isn t under  Referenced Libraries   it s at the same level in the tree   I then use the following code   ClassLoader classLoader   Thread currentThread   getContextClassLoader    InputStream input   classLoader getResourceAsStream   resources image jpg    Image logo   ImageIO read input     And at this point  I run the test program and get this error   Exception in thread  main  java lang IllegalArgumentException  input    null      at javax imageio ImageIO read Unknown Source      at Test main Test java 17    Thanks for any help in advance

User · Answer

If you are doing it in eclipse  there are a few quick notes that if you are hovering your mouse over a class  in your script  it will show a focus dialogue that says hit f2 for focus    for computer apps  use ImageIcon  and for the path say    ImageIcon thisImage   new ImageIcon  images youpic png      specify the folder  images  then seperate with   and add the name of the pic file    I hope this is helpful  If someone else posted it  I didn t read through  So   yea   thought reinforcement

User · Answer

Place the image in a source folder  not a regular folder   That is  right-click on project -  New -  Source Folder   Place the image in that source folder   Then   InputStream input   classLoader getResourceAsStream  image jpg      Note that the path is omitted   That s because the image is directly in the root of the path   You can add folders under your source folder to break it down further if you like   Or you can put the image under your existing source folder  usually called src

User · Answer

If you still have problems with Eclipse finding your files  you might try the following    Verify that the file exists according to the current execution environment by using the java io File class to get a canonical path format and verify that  a  the file exists and  b  what the canonical path is  Verify the default working directory by printing the following in your main        System out println  Working dir       System getProperty  user dir        For  1  above  I put the following debugging code around the specific file I was trying to access               File imageFile   new File source               System out println  Canonical path of target image      imageFile getCanonicalPath                 if   imageFile exists                      System out println  file     imageFile     does not exist                              image   ImageIO read imageFile                     For whatever reason  I ended up ignoring most of the other posts telling me to put the image files in  src  or some other variant  as I verified that the system was looking at the root of the Eclipse project directory hierarchy  e g    HOME workspace myProject    Having the images in src   which is automatically copied to bin   didn t do the trick on Eclipse Luna

User · Answer

It is very simple to adding an image into project and view the image  First create a folder into in your project which can contain any type of images   Then Right click on Project - gt  gt Go to Build Path - gt  gt  configure Build Path - gt  gt  add Class folder - gt  gt  choose your folder  which you just created for store the images  under the project name     class Surface extends JPanel        private BufferedImage slate      private BufferedImage java      private BufferedImage pane      private TexturePaint slatetp      private TexturePaint javatp      private TexturePaint panetp       public Surface              loadImages               private void loadImages              try                slate   ImageIO read new File  images  slate png                 java   ImageIO read new File  images  java png                 pane   ImageIO read new File  images  pane png                catch  IOException ex                 Logger  enter code here getLogger Surface class getName    log                      Level SEVERE  null  ex                        private void doDrawing Graphics g             Graphics2D g2d    Graphics2D  g create             slatetp   new TexturePaint slate  new Rectangle 0  0  90  60            javatp   new TexturePaint java  new Rectangle 0  0  90  60            panetp   new TexturePaint pane  new Rectangle 0  0  90  60             g2d setPaint slatetp           g2d fillRect 10  15  90  60            g2d setPaint javatp           g2d fillRect 130  15  90  60            g2d setPaint panetp           g2d fillRect 250  15  90  60            g2d dispose                Override     public void paintComponent Graphics g             super paintComponent g           doDrawing g            public class TexturesEx extends JFrame        public TexturesEx              initUI               private void initUI              add new Surface              setTitle  Textures            setSize 360  120           setLocationRelativeTo null                   setDefaultCloseOperation JFrame EXIT ON CLOSE              public static void main String   args             EventQueue invokeLater new Runnable                   Override             public void run                     TexturesEx ex   new TexturesEx                    ex setVisible true

User · Answer

You can resave the image and literally find the src file of your project and add it to that when you save  For me I had to go to netbeans and found my project and when that comes up it had 3 files src was the last  Don t click on any of them just save your pic there  That should work  Now resizing it may be a different issue and one I m working on now lol

[java] How do I go about adding an image into a java project with eclipse?

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