Java in Linux

> And can I use linux's textboxes, labels, chackboxes etc. in java?

Well, I guess they're GTK's widgets you are talking about, not Linux's ...;) But, yes, according to these people: http://java-gnome.sourceforge.net/ "Since 1998, the java-gnome project has been offering Java bindings for the GTK widget toolkit and for the rich family of libraries making up the GNOME desktop."

Meanwhile the little white angel figure waggles its finger and cautions:

-- I've never used this software

-- If you're new to Java, consider that it has a *big* API: that means lots of widgets and things to learn. If you add to this the task of learning to communicate between this language and another, this is looking like a lot of work. At least learn the language first!

-- Using JNI (ie communicating at a low level with the OS) which this approach involves, may be a case of banging like h3ll on a square peg to force it into a round hole. At a minimum you lose OS independency (the freedom for your software to run on any* OS).

But who listens to the little white angel figure? Good luck!

* where any==possessing a jre; but note how I've dragged freedom into it!

pbrockway2a at 2007-7-12 23:02:07 >

The jdk includes the jre. So you only need to install the jdk.

You might need to update your PATH variable to include the path to the bin directory of the jdk installation.

Try launching a shell and entering java -version

and notice the output.

When you ran the bin file did you do so as root?

Back in the shell try ls -l /usr/java

and notice the output.

Also "echo $PATH" and verify that the jdk bin directory like /usr/java/jdk1.6.0_01/bin

or something is included in your PATH output. The actual jdk directory will depend upon the version you've installed.

nantucketa at 2007-7-12 23:02:07 >

Okay you will need to update your PATH variable then.

If you are the only user on the system then you can place the installation directory inside your home directory. Having it inside /usr allows other users to use java.

Assuming you are the only user, you can append the PATH variable using your .bash_profile file inside your home directory.

cd ~

vi .bash_profile

Now add the bin directory to the PATH variable - whatever it may be for you.

PATH=$PATH:/usr/java/jdk6/bin

export PATH

At this point you can either log out and log back in again or simply enter

source .bash_profile

in the shell. Then enterjava -version

And you should see a reference to Java 6 there.

nantucketa at 2007-7-12 23:02:07 >

I have downloaded the JDK package with netbeans. I tried to install it but this time I got this error:

WARNING: cannot instantiate string resolver method com.installshield.util.LocalizedStringResolver: com.installshield.database.ISSqlException: Table already exists: EVENT in statement [CREATE TABLE Event(Event VARCHAR(255) NOT NULL PRIMARY KEY,EventText VARCHAR(255) NOT NULL,ActionSequence_ INTEGER)] [ CREATE TABLE Event(Event VARCHAR(255) NOT NULL PRIMARY KEY,EventText VARCHAR(255) NOT NULL,ActionSequence_ INTEGER)] caused by: java.sql.SQLException: Table already exists: EVENT in statement [CREATE TABLE Event(Event VARCHAR(255) NOT NULL PRIMARY KEY,EventText VARCHAR(255) NOT NULL,ActionSequence_ INTEGER)]

Table already exists: EVENT in statement [CREATE TABLE Event(Event VARCHAR(255) NOT NULL PRIMARY KEY,EventText VARCHAR(255) NOT NULL,ActionSequence_ INTEGER)] [ CREATE TABLE Event(Event VARCHAR(255) NOT NULL PRIMARY KEY,EventText VARCHAR(255) NOT NULL,ActionSequence_ INTEGER)] caused by: java.sql.SQLException: Table already exists: EVENT in statement [CREATE TABLE Event(Event VARCHAR(255) NOT NULL PRIMARY KEY,EventText VARCHAR(255) NOT NULL,ActionSequence_ INTEGER)]WARNING: could not delete temporary file /tmp/ismp001/6843623

WARNING: could not delete temporary file /tmp/ismp001/225707

WARNING: could not delete temporary file /tmp/ismp001/3907936

(I tried this with root)

Genomsarena at 2007-7-21 23:03:52 >

I did as you said. Now I get this reference from "java -version":

java version "1.6.0"

Java(TM) SE Runtime Environment (build 1.6.0-b105)

Java HotSpot(TM) Client VM (build 1.6.0-b105, mixed mode, sharing)

But still I cant install jstudio:

No compatible Java SE Runtime Environment (JRE) was found on this system.

and I can not install netbeans too:

WARNING: cannot instantiate string resolver method com.installshield.util.LocalizedStringResolver: com.installshield.database.ISSqlException: Table already exists: EVENT in statement [CREATE TABLE Event(Event VARCHAR(255) NOT NULL PRIMARY KEY,EventText VARCHAR(255) NOT NULL,ActionSequence_ INTEGER)] [ CREATE TABLE Event(Event VARCHAR(255) NOT NULL PRIMARY KEY,EventText VARCHAR(255) NOT NULL,ActionSequence_ INTEGER)] caused by: java.sql.SQLException: Table already exists: EVENT in statement [CREATE TABLE Event(Event VARCHAR(255) NOT NULL PRIMARY KEY,EventText VARCHAR(255) NOT NULL,ActionSequence_ INTEGER)]

Table already exists: EVENT in statement [CREATE TABLE Event(Event VARCHAR(255) NOT NULL PRIMARY KEY,EventText VARCHAR(255) NOT NULL,ActionSequence_ INTEGER)] [ CREATE TABLE Event(Event VARCHAR(255) NOT NULL PRIMARY KEY,EventText VARCHAR(255) NOT NULL,ActionSequence_ INTEGER)] caused by: java.sql.SQLException: Table already exists: EVENT in statement [CREATE TABLE Event(Event VARCHAR(255) NOT NULL PRIMARY KEY,EventText VARCHAR(255) NOT NULL,ActionSequence_ INTEGER)]WARNING: could not delete temporary file /tmp/ismp001/4609323

WARNING: could not delete temporary file /tmp/ismp001/3997976

WARNING: could not delete temporary file /tmp/ismp001/5649000

And I dont get it why are errors containning SQL sentences?

Genomsarena at 2007-7-21 23:03:52 >