Index [SYMBOL] [A] [B] [C] [D] [E] [F] [G] [H] [I] [J] [K] [L] [M] [N] [O] [P] [Q] [R] [S] [T] [U] [V] [W] [X] [Y] [Z] radialLines parameter (drawArc( ) method) radii radius parameter      drawArc( ) method      drawCircle( ) method radix parameter (parseInt( ) function) random numbers random( ) method      coin toss, simulating      dice, simulating RangeErrors 2nd 3rd ratios parameter (beginGradientFill( ) method) readBoolean( ) method readByte( ) method 2nd readChallenge( ) method readDouble( ) method readFloat( ) method readInt( ) method 2nd readNormalProtocol( ) method readObject( ) method readShort( ) method readUnsignedByte( ) method readUnsignedInt( ) method readUnsignedShort( ) method readUTF( ) method readVersion( ) method Rectangle region rectangles, drawing rectangular fills, creating recursion RED property (BitmapDataChannel class)      noise( ) method      perlinNoise( ) method redMultiplier property redOffset property (ColorTransform class) regexes [See regular expressions] RegExp class RegExp.test( ) method regexps [See regular expressions] registerClassAlias( ) method regular expressions 2nd      literals      nongreedy patterns     pattern matches          looking for          removing and replacing characters/words      splitting strings      testing      understanding patterns      user input, validating Regular Expressions Pocket Reference (Stubblebine, Tony) relatedObject property remote procedure calls (RPC) 2nd remote shared objects (RSO) removeChild( ) method removeChildAt( ) method Rendering Engine reparenting repeat parameter, for Graphics.beginBitmapFill( ) replace parameter      replace( ) method      String.replace( ) method replace( ) method replacement codes replaceSelectedText( ) method replaceText( ) method reserved words Responder class restarting sound restrict property, filtering text input with result event listener ResultEvent parameter results      variables, server-side processing return character [See carriage return character] return statements reusable code 2nd reverse( ) method      reversing strings RexExp.exec( ) method RGB color values rgb property right triangles, calculating distance of rightmargin attribute (<textformat> tag) root nodes (XML) root.loaderInfo.parameters property rotation parameter      createGradientBox( ) method      drawRegularPolygon( ) method      drawTriangle( ) method      Pen.drawStar( ) method round( ) method      random numbers, generating rounding numbers roundToInterval parameter      NumberUtilities.random( ) method      NumberUtilities.round( ) method RPC (remote procedure calls) 2nd RSO [See remote shared objects] runtime environment