?? j03190501.java
字號:
import java.lang.*;
/*
enum month // month 簡易版本一
{
sunday,monday,tuesday,wednesday,thursday,friday,saturday;
}*/
enum month // month 版本二
{
sunday(0),monday(1),tuesday(2),wednesday(3),
thursday(4),friday(5),saturday(6);
private int value; // 自定義成員變量
private month( int a ) // month 的構造函數
{
System.out.print( a + " " );
value = a;
}
public int showValue() //自定義成員函數
{
return value;
}
}
public class j03190501
{
public static void main( String[] para )
{
month monthObj; // 定義 monthObj 的 month 枚舉類型對象變量
monthObj = month.monday; //賦予monthObj枚舉變量值 monday
System.out.println( "\n" + monthObj.showValue() );
System.out.println( "ordinal()="+monthObj.ordinal() );
switch( monthObj ) // 在 switch 中使用 enum類型
{
case sunday:
System.out.println( "monthObj=sunday" ); break;
case monday:
System.out.println( "monthObj=monday" ); break;
case tuesday:
System.out.println( "monthObj=tuesday" ); break;
case wednesday:
System.out.println( "monthObj=wednesday" ); break;
case thursday:
System.out.println( "monthObj=thursday" ); break;
case friday:
System.out.println( "monthObj=friday" ); break;
case saturday:
System.out.println( "monthObj=saturday" ); break;
}
}
}
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