How to modify and compile SDK 4 frameworks file in Flash Builder 4
Hi,
I would like to modify \Program Files\Adobe\Adobe Flash Builder 4\sdks\4.0.0\frameworks\projects\framework\src\mx\core\ScrollControlBase.as file for testing of my application. How do I get FlashBuilder 4 to compile that file and include it into my build.
Thanks
Jerry
You can actually just take the source for that file and put it in your project in the correct package. So create the mx/core/ folders inside the src folder. and then create a new ScrollControlBase.as file with the contents you wish to run.
This is often called monkey patching because the files in your project folder have higher precedence over the ones in the sdk. Allowing you to override them.
Simeon Bateman
Principal Instigator
PNW Rain LLC
[email protected]
503-616-4405
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How to create and use library JAR files with command-line tools?
Development Tools -> General Questions:
I am trying to figure out how to put utility classes into JAR files and then compile and run applications against those JAR files using the command-line javac, jar, and java tools. I am using jdk1.7.0_17 on Debian GNU/Linux 6.0.7.
I have posted a simple example with one utility class, one console application class, and a Makefile:
http://holgerdanske.com/users/dpchrist/java/examples/jar-20130520-2134.tar.gz
Here is a console session:
2013-05-20 21:39:01 dpchrist@desktop ~/sandbox/java/jar
$ cat src/com/example/util/Hello.java
package com.example.util;
public class Hello {
public static void hello(String arg) {
System.out.println("hello, " + arg);
2013-05-20 21:39:12 dpchrist@desktop ~/sandbox/java/jar
$ cat src/com/example/hello/HelloConsole.java
package com.example.hello;
import static com.example.util.Hello.hello;
public class HelloConsole {
public static void main(String [] args) {
hello("world!");
2013-05-20 21:39:21 dpchrist@desktop ~/sandbox/java/jar
$ make
rm -f hello
find . -name '*.class' -delete
javac src/com/example/util/Hello.java
javac -cp src src/com/example/hello/HelloConsole.java
echo "java -cp src com.example.hello.HelloConsole" > hello
chmod +x hello
2013-05-20 21:39:28 dpchrist@desktop ~/sandbox/java/jar
$ ./hello
hello, world!I believe I am looking for:
1. Command-line invocation of "jar" to put the utility class bytecode file (Hello.class) into a JAR?
2. Command-line invocation of "javac" to compile the application (HelloConsole.java) against the JAR file?
3. Command-line invocation of "java" to run the application (HelloConsole.class) against the JAR file?
I already know how t compile the utility class file.
Any suggestions?
TIA,
DavidI finally figured it out:
1. All name spaces must match -- identifiers, packages, file system, JAR contents, etc..
2. Tools must be invoked from specific working directories with specific option arguments, all according to the project name space.
My key discovery was that if the code says
import com.example.util.Hello;then the JAR must contain
com/example/util/Hello.classand I must invoke the compiler and interpreter with an -classpath argument that is the full path to the JAR file
-classpath ext/com/example/util.jarThe code is here:
http://holgerdanske.com/users/dpchrist/java/examples/jar-20130525-1301.tar.gz
Here is a console session that demonstrates building and running the code two ways:
1. Compiling the utility class into bytecode, compiling the application class against the utility bytecode, and running the application bytecode against the utility bytecode.
2. Putting the (previously compiled) utility bytecode into a JAR and running the application bytecode against the JAR. (Note that recompiling the application against the JAR was unnecessary.)
(If you don't know Make, understand that the working directory is reset to the initial working directory prior to each and every command issued by Make):
2013-05-25 14:02:47 dpchrist@desktop ~/sandbox/java/jar
$ cat apps/com/example/hello/Console.java
package com.example.hello;
import com.example.util.Hello;
public class Console {
public static void main(String [] args) {
Hello.hello("world!");
2013-05-25 14:02:55 dpchrist@desktop ~/sandbox/java/jar
$ cat libs/com/example/util/Hello.java
package com.example.util;
public class Hello {
public static void hello(String arg) {
System.out.println("hello, " + arg);
2013-05-25 14:03:03 dpchrist@desktop ~/sandbox/java/jar
$ make
rm -rf bin ext obj
mkdir obj
cd libs; javac -d ../obj com/example/util/Hello.java
mkdir bin
cd apps; javac -d ../bin -cp ../obj com/example/hello/Console.java
cd bin; java -cp .:../obj com.example.hello.Console
hello, world!
mkdir -p ext/com/example
cd obj; jar cvf ../ext/com/example/util.jar com/example/util/Hello.class
added manifest
adding: com/example/util/Hello.class(in = 566) (out= 357)(deflated 36%)
cd bin; java -cp .:../ext/com/example/util.jar com.example.hello.Console
hello, world!
2013-05-25 14:03:11 dpchrist@desktop ~/sandbox/java/jar
$ tree -I CVS .
|-- Makefile
|-- apps
| `-- com
| `-- example
| `-- hello
| `-- Console.java
|-- bin
| `-- com
| `-- example
| `-- hello
| `-- Console.class
|-- ext
| `-- com
| `-- example
| `-- util.jar
|-- libs
| `-- com
| `-- example
| `-- util
| `-- Hello.java
`-- obj
`-- com
`-- example
`-- util
`-- Hello.class
19 directories, 6 filesHTH,
David -
How to modify existing data in a file help me!!!!!
hi i had a file which contais the some data like
folder1:50
folder2:30
folder3:56 etc.....
now my problem is i want to update the integer value for a specified folder entry
i.e i want to modify folder1:50 to folder1:80 how to do it?
i am new to java PLZ help
i am unable to find best solution for this
thanks in advanceWell, it makes a big difference if what you're doing is always just replacing some bytes, or if bytes might be inserted or deleted.
In the latter case there really isn't much point in doing anything but generating a new version of the file by copying the unchanged bits and inserting the replacement bits. Then you can rename the old file to a back up and rename the new file to the old file name.
If you're always simply replacing one byte for another (and be careful because, depending on the character encoding, single characters may encode to a different number of bytes), then you can try using RandomAccessFile and, for added flexibility, you can memory map a file using RandomAccessFile.getFileChannel.map();
Either of these techniques will allow you to go to a particular position in the file and overwrite bytes to your heart's content. All your sample records are the same length. If the file is guaranteed to have all it's records the same length then, obviously, it will be easier to find the right bytes. If not you'll have to do a bit of searching. -
X2: How to stop and play a MP3 file from any place...
Hi,
I have some 1 hour talk shows on MP3 on my X2. I play one show. After 10 minutes I want to pause it there and take a call, or go to the menu and add a reminder, and come back to the mp3 and play from the point I stopped (10 minutes). How to do that?
When I pause and come back and press play, it starts from the begininging????
Thanks
RoahanWell a smarter way of implementing this is by using a solution provided by Java Itself.
If you are using J2SE 6.0+ there is an in built solution provided along with JDK itself and inorder to go ahead with solution the below are set of API which you;d be using it for compiling Java Programs (Files)
http://java.sun.com/javase/6/docs/api/javax/tools/package-summary.html
How do i do that ??
Check out the below articles which would help you of how to do that
http://www.ibm.com/developerworks/java/library/j-jcomp/index.html
http://www.javabeat.net/javabeat/java6/articles/java_6_0_compiler_api_1.php
http://books.google.com/books?id=WVbpv8SQpkEC&pg=PA155&lpg=PA155&dq=%22javax+tools%22+compiling+java+file&source=web&ots=XOt0siYe-f&sig=HH27ovuwvJgklIf8omTykUmy-eM
Now once we are done with compilation.In order to run a Specific class all you ought to do is create an object and its specific methods of a specified class included in the CLASSPATH which you can manage it easily by usage little bit reflections.
Hope that might help :)
REGARDS,
RaHuL
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