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How can I add an image to a label, so that it gets into a jar file

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  How can I add an image to a label, so that it gets into a jar file clusardi2k@aol.com - 2012-09-20 09:48 -0700
    Re: How can I add an image to a label, so that it gets into a jar file clusardi2k@aol.com - 2012-09-20 09:49 -0700
    Re: How can I add an image to a label, so that it gets into a jar file Lew <lewbloch@gmail.com> - 2012-09-20 21:51 -0700

#18864 — How can I add an image to a label, so that it gets into a jar file

How can I add an image to a label, so that it gets into the associated jar at build time.

   URL url = Test.class.getResource("/baby_face.gif"); 
                
   Icon addimage = new ImageIcon(url); 
   jlabel1.setIcon(addimage);

compile:
run:
Exception in thread "main" java.lang.NullPointerException
	at test_1.BTest.<init>(Test.java:234)
	at bltest_1.Test.main(Test_main.java:10)
Java Result: 1
BUILD SUCCESSFUL (total time: 2 seconds)

If I look at "addimage" in the debugger, I see:

addimage
 filename null
 imageObserver null
 accessibleContext null
 description "file:/C:/..."
 width   76
 height  40
...

Thank you,

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#18865

Reference:

http://www.coderanch.com/t/555675/java/java/Images-jar

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#18872

 (unknown) wrote:
> How can I add an image to a label, so that it gets into the associated jar at build time.
> 
>    URL url = Test.class.getResource("/baby_face.gif"); 

Have you read the Javadocs?
http://docs.oracle.com/javase/7/docs/api/java/lang/Class.html#getResource(java.lang.String)

It searches the classpath, so place the resource in the classpath, i.e., somewhere in the / tree of 
the JAR. For the string you show, that'd be the root of the JAR internal tree.

Study up on classpaths and JARs.

Also, check out http://sscce.org/

-- 
Lew

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