hg/apidesign: samples/apifest1/day1/stackbasedsolution/src/org/netbeans/apifest/boolcircuit/Operation.java@4257f4cf226b

     1 /*

     2  * Operation.java

     3  *

     4  * Created on July 12, 2006, 3:06 PM

     5  *

     6  * To change this template, choose Tools | Template Manager

     7  * and open the template in the editor.

     8  */

    10 package org.netbeans.apifest.boolcircuit;

    12 /**

    13  *

    14  */

    15 public interface Operation {

    16     public char evaluate (char i1, char i2) throws IllegalArgumentException;

    17     public final static Operation OR = new Or ();

    18     public final static Operation AND = new And ();

    19     public final static Operation NEG = new Neg ();

    22     static class And implements Operation {

    23         public char evaluate(char i1, char i2) throws IllegalArgumentException {

    24             if (i1 != '0' && i1 != '1') {

    25                 throw new IllegalArgumentException ("Invalid input parameter: " + i1);

    26             }

    27             if (i2 != '0' && i2 != '1') {

    28                 throw new IllegalArgumentException ("Invalid input parameter: " + i2);

    29             }

    30             return i1 == '1' && i2 == '1' ? '1' : '0';

    31         }

    32     }

    33     static class Or implements Operation {

    34         public char evaluate(char i1, char i2) throws IllegalArgumentException {

    35             if (i1 != '0' && i1 != '1') {

    36                 throw new IllegalArgumentException ("Invalid input parameter: " + i1);

    37             }

    38             if (i2 != '0' && i2 != '1') {

    39                 throw new IllegalArgumentException ("Invalid input parameter: " + i2);

    40             }

    41             return i1 == '1' || i2 == '1' ? '1' : '0';

    42         }

    43     }

    44     static class Neg implements Operation {

    45         public char evaluate(char i1, char i2) throws IllegalArgumentException {

    46             if (i1 != '0' && i1 != '1') {

    47                 throw new IllegalArgumentException ("Invalid input parameter: " + i1);

    48             }

    49             return i1 == '1' ? '0' : '1';

    50         }

    51     }

    52 }

author	Jaroslav Tulach <jtulach@netbeans.org>
	Sat, 14 Jun 2008 09:52:45 +0200
changeset 52	4257f4cf226b
permissions	-rw-r--r--