This example use ASM and BCEL to generete two classes on-device.
The classes are created into SD Card memory and then they are loaded into Android operating system dynamically.
The following class is the template of the example:
public class HelloWorld {
public static void hello(){
int a=0xabcd;
int b=0xaaaa;
int c=a-b;
String s=Integer.toHexString(c);
System.out.println(s);
}
}
Firstly I have used BCEL or ASM to create a new ad-hoc class in SD Card.
Secondly I have converted the Java Class to a Dex Class with the Dxclient utiliy in SD Card.
Finally I have created a jar file and then I have loaded this package into the device from SD Card
DXClient reference
https://github.com/headius/dexclient/blob/master/src/DexClient.java