data

-

arbitrary data that was passed into the Engine constructor

tag

-

identifies the type of message

msg

-

text of the message

import com.maplesoft.openmaple.*;

import com.maplesoft.externalcall.MapleException;

class Example

{

    public static void main( String notused[] ) throws MapleException

    {

    String mapleArgs[];

    Engine engine;

    mapleArgs = new String[1];

    mapleArgs[0] = "java";

    engine = new Engine( mapleArgs, new EngineCallBacksDefault(),

        null, null );

    engine.evaluate( "192+291;" );

    engine.evaluate( "printf( \%a\, x^n+y^n=z^n );" );

    engine.evaluate( "printlevel:=5;" );

    engine.evaluate( "int(x,x);" );

    engine.evaluate( "printlevel:=1;" );

    engine.evaluate( "WARNING( \be warned!\ );" );

    }

}

483

x^n+y^n = z^n

printlevel := 5

{--> enter int, args = x, x

answer := 1/2*x^2

1/2*x^2

<-- exit int (now at top level) = 1/2*x^2}

1/2*x^2

printlevel := 1

Warning, be warned!