Numeric.isByte - Maple Programming Help

Online Help

All Products    Maple    MapleSim


Home : Support : Online Help : Programming : OpenMaple : Java Application Programming Interface : Numeric Class : OpenMaple/Java/Numeric/isByte

Numeric.isByte

check if the value stored in the Numeric fits into a Java byte

 

Calling Sequence

Description

Examples

Calling Sequence

boolean isByte() throws MapleException

Description

• 

The isByte function returns true if the value represented by the current Numeric object is an integer that is small enough to fit into a Java byte.  The isByte function returns false otherwise.

• 

If isByte returns true, a call to one of byteValue, shortValue, intValue or longValue completes without error.

Examples

import com.maplesoft.openmaple.*;

import com.maplesoft.externalcall.MapleException;

class Example

{

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

    {

        String[] mapleArgs = { "java" };

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

        Numeric n = (Numeric)engine.evaluate( "200:" );

        System.out.println( n.isByte() );

        try

        {

            n.byteValue();

        }

        catch ( MapleException me )

        {

            System.out.println( me.getMessage() );

        }

        n = (Numeric)engine.evaluate( "100:" );

        System.out.println( n.isByte() );

        byte b = n.byteValue();

        System.out.println( b );

    }

}

Executing this code produces the following output.

false

Error, value too large for integer[1]

true

100

See Also

ExternalCalling/Java/MapleException

OpenMaple

OpenMaple/Java/API

OpenMaple/Java/Numeric

OpenMaple/Java/Numeric/byteValue

OpenMaple/Java/Numeric/intValue

OpenMaple/Java/Numeric/isInt

OpenMaple/Java/Numeric/isInteger

OpenMaple/Java/Numeric/isLong

OpenMaple/Java/Numeric/isShort

OpenMaple/Java/Numeric/longValue

OpenMaple/Java/Numeric/shortValue