Simple application of Enumerations (ii)

Enum class

1  PackageCom.yeepay.sxf.euma;2 /**3 * Enumeration When defining variables, the last enumeration to add;4 * Enumeration of custom variables5 * Enumeration of custom methods6 * How to write weights7  * @authorSXF8  *9  */Ten  Public enumColor { One     //enumeration constants. At the end of the constant, you need to add; ARed ("Red", 1), -Green ("Greens", 2), -BLANK ("White", 3), theYello ("Yellow", 4); -      -         //member Variables -         PrivateString str; +         Private intindex; -  +         //Construction Method A         PrivateColor (String str,intindex) { at              This. str=str; -              This. index=index; -         } -         //using enumerations to Judge -          Public Static Booleancomper (color color) { -             if(color==RED) { in                 return true; -             } to             return false; +         } -          the         //data A value that gets an enumeration *          Public StaticColor Getindextocolor (intindex) { $              for(Color color:Color.values ()) {Panax Notoginseng                 if(color.index==index) { -                     returncolor; the                 } +             } A             return NULL; the         } +          -         //override Method $ @Override $          PublicString toString () { -             return  This. index+ "---" + This. str; -         } the          -         //Set Get MethodWuyi          PublicString getstr () { the             returnstr; -         } Wu  -          Public voidsetstr (String str) { About              This. str =str; $         } -  -          Public intGetIndex () { -             returnindex; A         } +  the          Public voidSetindex (intindex) { -              This. index =index; $         } the          the      the      the      -      in}

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Test class

1  PackageCom.yeepay.sxf.euma;2 3 4  Public classTest {5      Public Static voidMain (string[] args) {6 test2 ();7     }8     9     Ten      Public Static voidtest2 () { One         //using enumerations directly A         Booleanflag=Color.comper (color.red); -System.out.println ("==> directly using enumerations" +flag); -          the         //gets the value in an enumeration -         intindex=Color.BLANK.getIndex (); -String str=Color.BLANK.getStr (); -System.out.println ("Get value in enumeration ==>" +index); +System.out.println ("Get value in enumeration ==>" +str); -          +         //printing enumerations, overriding methods AString astring=Color.RED.toString (); atSYSTEM.OUT.PRINTLN ("Print values in enumeration ==>" +astring); -          -         //calling methods in enumerations -Color Color=color.getindextocolor (4); -System.out.println ("Invoke method ==> in enumeration" +color.getstr ()); -          in      -          to     } +}

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Print results

==>true that use enumerations directly
Gets the value in the enumeration ==>3
Gets the value in the enumeration ==> white
Print the values in the enumeration ==>1---red
Call the method in the enumeration ==> yellow

Simple application of Enumerations (ii)