Numeric.isInt - Maple Programming 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

Description

 • 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.

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; 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() ); try { n.intValue(); } 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.

 false Error, value too large for integer[4] true 1048576