package?cn.com.p102_t16;

public?class?Length?{
	double?num;
	String?unit;
	Length（double?numString?unit）{//初始化
		this.num=num;
		this.unit=unit;
	}
	
	Length（）{}
	
	Length?meter（Length?l）{//米轉化為英尺
		Length?l1=new?Length（）;
		l1.num=3.28*l.num;
		l1.unit=“英尺“;
		return?l1;
	}
	
	Length?foot（Length?l）{//英尺轉化為米
		Length?l2=new?Length（）;
		l2.num=0.305*l.num;
		l2.unit=“米“;
		return?l2;
	}
	
	
}

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2016-11-23?15:18??JavaClass\
?????文件?????????301??2016-09-21?18:09??JavaClass\.classpath
?????文件?????????385??2016-09-21?18:09??JavaClass\.project
?????目錄???????????0??2016-11-23?15:18??JavaClass\.settings\
?????文件?????????629??2016-09-21?18:09??JavaClass\.settings\org.eclipse.jdt.core.prefs
?????目錄???????????0??2016-11-23?15:18??JavaClass\bin\
?????目錄???????????0??2016-11-23?15:18??JavaClass\bin\cn\
?????目錄???????????0??2016-11-23?15:18??JavaClass\bin\cn\com\
?????目錄???????????0??2016-11-23?15:18??JavaClass\bin\cn\com\p102_t16\
?????文件?????????835??2016-09-27?13:12??JavaClass\bin\cn\com\p102_t16\Length.class
?????文件????????1296??2016-11-23?15:09??JavaClass\bin\cn\com\p102_t16\TestLength.class
?????目錄???????????0??2016-11-23?15:18??JavaClass\bin\cn\com\test02\
?????文件?????????938??2016-09-27?13:12??JavaClass\bin\cn\com\test02\Complex.class
?????文件????????1810??2016-11-23?15:09??JavaClass\bin\cn\com\test02\TestComplex.class
?????目錄???????????0??2016-11-23?15:18??JavaClass\bin\GetArea\
?????文件????????2599??2016-11-07?19:27??JavaClass\bin\GetArea\Application.class
?????文件????????1272??2016-11-07?17:20??JavaClass\bin\GetArea\Cycle.class
?????文件?????????443??2016-11-07?17:14??JavaClass\bin\GetArea\Figure.class
?????文件????????1327??2016-11-07?17:14??JavaClass\bin\GetArea\RightTriangle.class
?????文件????????1329??2016-11-07?17:19??JavaClass\bin\GetArea\Square.class
?????文件?????????827??2016-11-23?15:09??JavaClass\bin\GetArea\TestSquare.class
?????文件?????????141??2016-10-30?22:42??JavaClass\bin\java.policy.applet
?????目錄???????????0??2016-11-23?15:18??JavaClass\bin\seatwork_ch2\
?????文件????????2052??2016-11-23?15:09??JavaClass\bin\seatwork_ch2\Compute_Year_Month_Day.class
?????目錄???????????0??2016-11-23?15:18??JavaClass\bin\seatwork_ch3\
?????文件????????1500??2016-09-30?16:33??JavaClass\bin\seatwork_ch3\Table.class
?????文件?????????646??2016-11-23?15:09??JavaClass\bin\seatwork_ch3\TestTable.class
?????目錄???????????0??2016-11-23?15:18??JavaClass\bin\seatwork_ch5\
?????文件?????????143??2016-09-30?17:11??JavaClass\bin\seatwork_ch5\ArearInterface.class
?????文件????????1100??2016-09-30?17:21??JavaClass\bin\seatwork_ch5\Rectangle.class
?????文件?????????968??2016-09-30?17:20??JavaClass\bin\seatwork_ch5\Round.class
............此處省略49個文件信息