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有點(diǎn)小問(wèn)題想請(qǐng)教各位大俠

//車(chē)的父類(lèi)
package?com.dadazuche;

public?abstract?class?Typeofcar?
{
	private?String?carname;
	private?int?price;
	private?int?sequence;
	
	
	public?int?getSequence()?{
		return?sequence;
	}
	public?void?setSequence(int?sequence)?{
		this.sequence?=?sequence;
	}
	public?String?getCarname()?{//方法名?用get的方法來(lái)得到carname
		return?carname;
	}
	public?void?setCarname(String?carname)?{
		this.carname?=?carname;
	}
	public?int?getPrice()?{
		return?price;
	}
	public?void?setPrice(int?price)?{
		this.price?=?price;
	}
	
}
//貨車(chē)的子類(lèi)
package?com.dadazuche;

public?class?huoche?extends?Typeofcar?
{
	
	private?int?numofgoods;
	
	public??huoche?(int?sequence,?String?carname,?int?price,?int?numofgoods)
	{
		//?TODO?Auto-generated?method?stub
		setSequence(sequence);
		setCarname(carname);
		setPrice(price);
		this.numofgoods=numofgoods;
	}
	public?int?getNumofgoods()?{
		return?numofgoods;
	}
	public?void?setNumofgoods(int?numofgoods)?{
		this.numofgoods?=?numofgoods;
	}
	
	public?void?output()
	{
		System.out.println("車(chē):"+getSequence()+"\t"+"車(chē)型:"+getCarname()+"\t"+"價(jià)格:"+getPrice()+"一天\t"+"載貨量:"+getNumofgoods()+"噸");
	}
}
//客車(chē)的子類(lèi)
package?com.dadazuche;

public?class?keche?extends?Typeofcar?
{

	private?int?numofpeople;
	
	public?keche(int?sequence,?String?carname,?int?price,?int?numofpeople)?
	{
		//?TODO?Auto-generated?method?stub
		setSequence(sequence);
		setCarname(carname);
		setPrice(?price);
		this.numofpeople=numofpeople;
		
	}

	public?int?getNumofpeople()?{
		return?numofpeople;
	}

	public?void?setNumofpeople(int?numofpeople)?{
		this.numofpeople?=?numofpeople;
	}
	
	
	public?void?output()
	{
		System.out.println("車(chē):"+getSequence()+"\t"+"車(chē)型:"+getCarname()+"\t"+"價(jià)格:"+getPrice()+"一天\t"+"載人數(shù):"+getNumofpeople()+"人");
	}

}
//皮卡的子類(lèi)
package?com.dadazuche;

public?class?pika?extends?Typeofcar
{

	private?int?numofpeople;
	private?int?numofgoods;
		//?TODO?Auto-generated?method?stub
	public?pika(int?sequence,?String?carname,?int?price,int?numofgoods,int?numofpeople)
	{
		setSequence(sequence);
		setCarname(carname);
		setPrice(?price);
		this.numofgoods=numofgoods;
		this.numofpeople=numofpeople;
			
	}
	public?int?getNumofpeople()?{
		return?numofpeople;
	}
	public?void?setNumofpeople(int?numofpeople)?{
		this.numofpeople?=?numofpeople;
	}
	public?int?getNumofgoods()?{
		return?numofgoods;
	}
	public?void?setNumofgoods(int?numofgoods)?{
		this.numofgoods?=?numofgoods;
	}
		
	public?void?output()
	{
		System.out.println("車(chē):"+getSequence()+"\t"+"車(chē)型:"+getCarname()+"\t"+"價(jià)格:"+getPrice()+"一天\t"+"載貨量:"+getNumofgoods()+"噸"
				+"\t"+"載人數(shù):"+getNumofpeople()+"人");
	}
	

}
//main的入口
package?com.dadazuche;

import?java.util.Scanner;

public?class?initial?
{

	public?static?void?main(String[]?args)?
	{
		//?TODO?Auto-generated?method?stub
		Scanner?in?=?new?Scanner(System.in);
		int?choice=0,a=0,b=0,c=0;
		
		huoche?obj1=new?huoche(1,"雪鐵龍",240,5);
		keche?obj2=new?keche(2,"大金龍",280,30);
		pika?obj3=new?pika(3,"皮卡",350,4,4);
		
		
		
		System.out.println("Do?you?want?to?use?our?DaDaZuChe?to?rent?a?car??Enter?1?for?yes.");
		int?num=in.nextInt();
		if(num==1)
		{
			System.out.println("Welcome?to?DaDaZuChe.");
			
		}
		
		do
		{System.out.println("Please?enter?a?number?from?1?to?3(1?for?viewing?available?cars,?2?for?choosing?car"+?"?3?for?view?total");
		int?num1=in.nextInt();
		switch(num)
		{
			case?1:
			{
				obj1.output();
				obj2.output();
				obj3.output();
			}
			case?2:
			{
				System.out.println("How?many?雪鐵龍?do?you?want?to?rent?");//可以加上租幾天的雪鐵龍的問(wèn)題
				a=in.nextInt();
				System.out.println("How?many?大金龍??do?you?want?to?rent?");
				b=in.nextInt();
				System.out.println("How?many?皮卡??do?you?want?to?rent?");
				c=in.nextInt();
			}
			
			case?3:
			{
				int?total=240*a+280*b+350*c;
				System.out.println("Your?total?is?"+total);
				System.out.println("Do?you?want?to?rent?another?car??1?for?yes,2?for?no");
				choice=in.nextInt();
			}	
		}
		}while(choice==1);
		System.out.println("Thank?you?for?choosing?DaDaZuChe!!");
	}	
}	

各位大俠,這是我的code。只是一個(gè)簡(jiǎn)略版,還要加?xùn)|西。我的問(wèn)題是:我在main里面怎樣輸入我在子類(lèi)里面輸入的車(chē)的屬性?是需要getter和setter嗎?還有如果不行,是不是我想在main里引用子類(lèi)都要在子類(lèi)里面創(chuàng)建一個(gè)方法,而不用屬性?方法是不是比屬性要好用?

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1 回答

看問(wèn)答區(qū)置頂?shù)奶?,有分析,有大神指點(diǎn)

0 回復(fù) 有任何疑惑可以回復(fù)我~
#1

XiaoYUU 提問(wèn)者

非常感謝!
2015-06-30 回復(fù) 有任何疑惑可以回復(fù)我~

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