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                        /Java入門第二季 升級版

能幫我看看這是老師的要求嗎？

//父類
package?com.imooc;
public?class?FuLei?{
public?String?name;
public?int?person;
public?String?style;
public?void?act()
{
System.out.println("名字="+name+"?"+"人數(shù)="+person+"?"+"類型="+style);
}
}
//子類自行車
public?class?Bicycle?extends?FuLei?{
		public?void?act()
		{
			super.name="自行車";
			super.person=2;
			super.style="陸運";
			super.act();
		}
	}
//子類汽車
public?class?Car?extends?FuLei?{
	public?void?act()
	{
		super.name="小汽車";
		super.person=5;
		super.style="陸運";
		super.act();
	}
}
//子類火車
public?class?Train?extends?FuLei?{
	public?void?act()
	{
		super.name="火車";
		super.person=2000;
		super.style="陸運";
		super.act();
	}
}
//子類輪船
public?class?stea?extends?FuLei{
	public?void?act()
	{
		super.name="輪船";
		super.person=20000;
		super.style="海運";
		super.act();
	}
}
//子類飛機(jī)
public?class?aircraft?extends?FuLei?{
	public?void?act()
	{
		super.name="飛機(jī)";
		super.person=500;
		super.style="空運";
		super.act();
	}
}
//測試類
public?class?Demo?{
	public?static?void?main(String?[]?sss)
	{
		FuLei?obj1=?new?Bicycle();
		obj1.act();
		FuLei?obj2=?new?Car();
		obj2.act();
		FuLei?obj3=?new?Train();
		obj3.act();
		FuLei?obj4=?new?stea();
		obj4.act();
		FuLei?obj5=?new?aircraft();
		obj5.act();
	}
}

慕仙6447988

2017-12-05

源自：Java入門第二季升級版 10-1

關(guān)注問題我要回答

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2 回答

kk求知者
2018-01-22

package?com.extends1;
public?class?Vehicle?{
?public?String?name;
?public?String?way;
?public?int?count;
public??Vehicle(String?name,String?way,int?count){
?this.name=name;this.way=way;this.count=count;
?System.out.println(name+"能"+way+"運輸"+count+"人");
}
}

package?com.extends1;
public?class?Steamer?extends?Vehicle?{
?public?Steamer(String?name,?String?way,?int?count)?{
??super(name,?way,?count);
??
?}
}

package?com.extends1;
public?class?Plane?extends?Vehicle?{
?public?Plane(String?name,?String?way,?int?count)?{
??super(name,?way,?count);
??
?}
}

package?com.extends1;
public?class?Bus?extends?Vehicle?{
?public?Bus(String?name,?String?way,?int?count)?{
??super(name,?way,?count);
??
?}
}

package?com.extends1;
public?class?Test?{
?/**
??*?@param?args
??*?多態(tài)問題的實現(xiàn)
??*?引用的多態(tài)
??*?方法的多態(tài)
??*/
?public?static?void?main(String[]?args)?{
?Vehicle?bus=new?Bus("公共汽車","陸上",?50);
?Vehicle?stea=new?Steamer("輪船","海上",200);
?Vehicle?plane=new?Plane("飛機(jī)","空中",1000);