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1 Reply Latest reply: Oct 26, 2011 11:09 PM by EJP RSS

Adding a java file to a jar and compiling it

616286 Newbie
Currently Being Moderated
Hi
I have added a java file to a jar package
C:\Program Files\Java\jdk1.5.0_22\bin>jar cvf swing-layout-1.0.2.jar NewJFrame.java

added manifest
adding: NewJFrame.java(in = 7751) (out= 1435)(deflated 81%)
When I extracted the jar package swing-layout-1.0.2.jar the added file not found!
Can someone tell me why?
and I have second question

when I added the java file manually to the package (after extracting ) and compiled the java file,it gives me an error
C:\Program Files\Java\jdk1.5.0_22\bin>javac -classpath "C:\Program Files\Java\jdk1.5.0_22\bin\org\jdesktop\layout" NewJFrame.java
It gives me an error
NewJFrame.java:35: package org.jdesktop.layout does not exist
Can someone help please.
  • 1. Re: Adding a java file to a jar and compiling it
    EJP Guru
    Currently Being Moderated
    I have added a java file to a jar package
    Why? That's not where they normally live.
    When I extracted the jar package swing-layout-1.0.2.jar the added file not found!
    Extracted it how?
    Can someone tell me why?
    and I have second question

    when I added the java file manually to the package (after extracting)
    What package?
    C:\Program Files\Java\jdk1.5.0_22\bin>javac -classpath "C:\Program Files\Java\jdk1.5.0_22\bin\org\jdesktop\layout"
    That's the strangest classpath I've ever seen. Problems:

    1. Directories under the JDK are the last place you should put your own source code.
    2. A classpath is a list of places where classes can be found according to their package structure. If your class is in the package org.desktop.layout, the directory containing org/desktop/layout should be in the classpath, not org/desktop/layout itself.
    NewJFrame.java:35: package org.jdesktop.layout does not exist
    It's not found on the classpath for the reason(s) above.

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