check if the value stored in the Numeric fits into a Java int - Maple Help

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Numeric.isInt - check if the value stored in the Numeric fits into a Java int

Calling Sequence

boolean isInt() throws MapleException



The isInt function returns true if the value represented by the current Numeric object is an integer small enough to fit into a Java int. Otherwise, the isInt function returns false.


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


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;

    int i;

    mapleArgs = new String[1];

    mapleArgs[0] = "java";

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

        null, null );

    n = (Numeric)engine.evaluate( "2^33:" );

    System.out.println( n.isInt() );





    catch ( MapleException me )


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


    n = (Numeric)engine.evaluate( "2^20:" );

    System.out.println( n.isInt() );

    i = n.intValue();

    System.out.println( i );



Executing this code produces the following output.


Error, value too large for integer[4]



See Also

ExternalCalling/Java/MapleException, OpenMaple, OpenMaple/Java/API, OpenMaple/Java/Numeric, OpenMaple/Java/Numeric/intValue, OpenMaple/Java/Numeric/isByte, OpenMaple/Java/Numeric/isInteger, OpenMaple/Java/Numeric/isLong, OpenMaple/Java/Numeric/isShort, OpenMaple/Java/Numeric/longValue

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