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Numeric.isByte - check if the value stored in the Numeric fits into a Java byte
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[];
Engine engine;
Numeric n;
byte b;
mapleArgs = new String[1];
mapleArgs[0] = "java";
engine = new Engine( mapleArgs, new EngineCallBacksDefault(),
null, null );
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:" );
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
Download Help Document
