How To Create Exe File In Java?

To Answer the origonal question: "How To convert java source code into an executable (.exe)" The Answer is simple, Compile it ! ( just like any c/c++ source code ) i dont think SUN have a native java compiler ( javac convers the source to bytecode, to be later run by an interprever ( java )) However, native java compilers do exist. For Example GCJ ( part of GCC, the GNU Compiler Collection ) Nativly compiling a java application has its advanatges, for example, you dont need to have JRE installed, but you lose the abbility to "compile once, run on any operating system" good luck.

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how to connect an .EXE file through java environment
How To Create Exe File In Java?

Hello friends,

I want to connect an EXE file of cisco software PACKET TRACER using java program, if anyone of you have an idea then please share with me.

Thanks

-question by vidhu jauhri

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The way i use is a program called JSmooth


dont know the website but you can just goooogle it



It takes all the class files and packages them in an exe file, and when executed searches for the JVM, so you still need to have the JVM on the users computer, but it also has an option to include the JVM ( that would be a big file )

anyways check it out, might suit your needs as long as ur programs arent too big....


note: i think there is a big in there, you might have to put all ur class files in jar files and have it read them from the jar file for it to work correctly, you might even have to set up the manifest in the jar file to make it be able to execute as a jar if you want it to execute as an exe, not sure though you should test around with it




I dont even know what he means by that Lol

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Try Advanced Installer
How To Create Exe File In Java?

Replying to vicky99 You can try advanced installer if you still didnt get any solution.

-reply by Triguna

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I know how to write exe files in 256 byte code but I'm not share if I trust you I will show you how to write bmp pictures in java

how to write a pictur I had a hard time I did lots of reverse engineering and hacking to figure out how to write a picture in pure computer code
All a computer understands is numbers lol
Offset    Size      Hex Value      Value     Description
42 4D     "BM"      Magic Number (unsigned integer 66, 77)
46 00 00 00    70 Bytes  Size of the BMP file
00 00     Unused    Application Specific
00 00     Unused    Application Specific
36 00 00 00    54 bytes  The offset where the bitmap data (pixels) can be found.
28 00 00 00    40 bytes  The number of bytes in the header (from this point).
02 00 00 00    2 pixels  The width of the bitmap in pixels
02 00 00 00    2 pixels  The height of the bitmap in pixels
01 00     1 plane   Number of colour planes being used.
18 00     24 bits   The number of bits/pixel.
00 00 00 00    0    BI_RGB, No compression used
10 00 00 00    16 bytes  The size of the raw BMP data (after this header)
13 0B 00 00    2,835 pixels/meter  The horizontal resolution of the image
13 0B 00 00    2,835 pixels/meter  The vertical resolution of the image
00 00 00 00    0 colours  Number of colours in the palette
00 00 00 00    0 important colours  Means all colours are important
Start of Bitmap Data
00 00 FF  0 0 255   Red, Pixel (0,1)
FF FF FF  255 255 255    White, Pixel (1,1)
00 00     0 0  Padding for 4 byte alignment (Could be a value other than zero)
FF 00 00  255 0 0   Blue, Pixel (0,0)
00 FF 00  0 255 0   Green, Pixel (1,0)
00 00     0 0  Padding for 4 byte alignment (Could be a value other than zero
If you want to know more about alignment padding
Its to do with the width of your picture
Like this 5 divided 4 = 1.25 is your padding your have .25 which is 00
Now remember this .25 is 00 .5 is 0000 .75 is 000000 and if 4 goes right dead on you don't need any padding or 0's after each line of colours
A bmp is written from the bottom up left to right
The size of the raw BMP data is the Start of Bitmap Data for each set of 2 numbers it counts as 1 bite there's 16 bytes of Bitmap Data on this picture
The offset where the bitmap data (pixels) can be found. This means how many bytes from the start of the file to where you put your bitmap data
Size of the BMP file this can be calculated by every 2 sets of numbers in the file add them together and you have the picture size in bytes
A bmp is backwards in red green blue its blue green red because its how stuff is put in a computer files are mostly read backwards on computer because first number in is the last one out
28 00 00 00 is how far it has to go to get to the Bitmap Data you even include this 28 00 00 00 string as 4 bytes all the way to the Bitmap Data witch is mostly 40 bytes
Heres a sample code 424D AE000000 0000 0000 36000000 28000000 06000000 06000000 0100 1800 00000000 78000000 130B0000 130B0000 00000000 00000000 FFFF00 FFFF00 FFFF00 FF0000 FF0000 FF0000 0000 FFFF00 FFFF00 FFFF00 FF0000 FF0000 FF0000 0000 FFFF00 FFFF00 FFFF00 FF0000 FF0000 FF0000 0000 FF0000 FF0000 FF0000 FFFF00 FFFF00 FFFF00 0000 FF0000 FF0000 FF0000 FFFF00 FFFF00 FFFF00 0000 FF0000 FF0000 FF0000 FFFF00 FFFF00 FFFF00 0000

java code

import javax.Swing.*;import java.Io.*;
Public class hex
{BufferedOutputStream bufferedOutput=null;
Public hex()
{WriteFile("424DAE000000000000003600000028000000060000000600000001001800000000007800000
0130B0000130B00000000000000000000FFFF00FFFF00FFFF00FF0000FF0000FF00000000FFFF00F
FFF00FFFF00FF0000FF0000FF00000000FFFF00FFFF00FFFF00FF0000FF0000FF00000000FF0000F
F0000FF0000FFFF00FFFF00FFFF000000FF0000FF0000FF0000FFFF00FFFF00FFFF000000FF0000F
F0000FF0000FFFF00FFFF00FFFF000000","test.Bmp");}
Public static void main(String[]args)
{new hex();}
Public void WriteFile(String hex,String f)
{hex=hex.Replace(" ","");
Try{bufferedOutput=new BufferedOutputStream(new FileOutputStream(f));
For(int loop=0;loop<=hex.Length()-1;loop=loop+2)
{int value=Integer.ParseInt(hex.Substring(loop,loop+2),16);
BufferedOutput.Write(value);}}
Catch(FileNotFoundException e)
{e.PrintStackTrace();}
Catch(IOException ex)
{ex.PrintStackTrace();}
Finally{try{if(bufferedOutput!=null)
{bufferedOutput.Flush();bufferedOutput.Close();}}catch(IOException e)
{e.PrintStackTrace();}}
JOptionPane.ShowMessageDialog(null,"Done Writeing File");}}

-reply by Damian Recodkie

 

 

 

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You have to integrate your application with a file named javaw which allows the application to be as a free independent program rather than running from the command prompt java.exe
or you can make a bat file to run the program

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How to create the application run on windows?
How To Create Exe File In Java?

How can I create a set of Java class files to an installation set to make others can install and run those have no jvm? Or Can I make the software from java class files which have the rich interfaces? -reply by haris

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then try to even include the jdk kit with your package so that even the java virtual machine will be present to run

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