|
Numeric.longValue - return the value of the Numeric object as a Java long
|
|
Calling Sequence
|
|
long longValue() throws MapleException
|
|
|
Description
|
|
|
•
|
The longValue function returns the value represented in the Numeric as a Java long. If the value does not fit exactly into a Java long, an error is raised.
|
|
•
|
To determine if the value fits within a Java long, use the isLong function.
|
|
|
|
Examples
|
|
|
import com.maplesoft.openmaple.*;
|
|
import com.maplesoft.externalcall.MapleException;
|
|
class Example
|
|
{
|
|
public static void main( String notused[] ) throws MapleException
|
|
{
|
|
String mapleArgs[];
|
|
Engine engine;
|
|
Numeric n;
|
|
long l;
|
|
mapleArgs = new String[1];
|
|
mapleArgs[0] = "java";
|
|
engine = new Engine( mapleArgs, new EngineCallBacksDefault(),
|
|
null, null );
|
|
n = (Numeric)engine.evaluate( "2^66:" );
|
|
System.out.println( n.isLong() );
|
|
try
|
|
{
|
|
n.longValue();
|
|
}
|
|
catch ( MapleException me )
|
|
{
|
|
System.out.println( me.getMessage() );
|
|
}
|
|
n = (Numeric)engine.evaluate( "2^60:" );
|
|
System.out.println( n.isLong() );
|
|
l = n.longValue();
|
|
System.out.println( l );
|
|
}
|
|
}
|
|
|
Executing this code produces the following output.
|
false
|
|
Error, value too large for integer[8]
|
|
true
|
|
1152921504606846976
|
|
|
|
|
Download Help Document
Was this information helpful?
