Thread: Scroll down in JOptionPane and window problems.

Yes those are examples of packages.

So what would I call mine? I'm importing more than one of those package types I just mentioned in the last post.

I just called it Battleship, but it didn't like it.

Does package name have to be the same as class name?

I entered:

jar cfm Battleship.jar manifest.txt Battleship/*.class

into command prompt but it didn't like it.

said that it isn't recognized as a command, bla bla bla.

HTML Code:

We then create a JAR file named MyJar.jar by entering the following command:

    jar cfm MyJar.jar Manifest.txt MyPackage/*.class

entering command where? In command prompt?

jar cf bob.jar BattleshipGUI.class BattleshipGUI$1.class BattleshipGUI$QuitButtonHandler.class BattleshipGUI$SurrenderButtonHandler.class MyTooSmallException.class MyTooBigException.class

That won't work either.

Have you considered the NetBeans, Eclipse, or Intellij IDEA IDE's? They do this all for you. Knowing how to make a JAR file by hand is not a requirement for a Java developer, although it does come in handy.

If you don't want to use an IDE, try this: Use ANT to Build a JAR with version/build number - Real's Java How-to

isn't recognized as a command

That message is from the OS. It is saying that it does not know/recognize the command you entered.
Where is the file for the command located? Is that location on the path?
Can you use the full path to the command to execute it?
For example: c:\Program Files\java\bin\jar.exe ...

Originally Posted by Lord.Quackstar

Have you considered the NetBeans, Eclipse, or Intellij IDEA IDE's? They do this all for you. Knowing how to make a JAR file by hand is not a requirement for a Java developer, although it does come in handy.

If you don't want to use an IDE, try this: Use ANT to Build a JAR with version/build number - Real's Java How-to

Yes I could put it in Eclipse. Already have one in there, and all I would have to do would be to modify it.

However, is there a way directly from Eclipse to make it do all of this very time consuming work for me? I've already tried a lot of the day.

I think I have Eclipse SDK, not JRE or IDE or whatever it's called. I think I might have JRE, but not Eclipse IDE. Maybe it comes with.

Ok, I finally got it to work. However, how do you get that evil Eclipse program to do that with programs that have println and are not just GUI?

Is it possible to add a JMenu to the top of a JFrame?

Perhaps not, but I can add one to a JFrame. I just did.