父類

package?com.zuche;

public??class?CarProperty?{
	public?String?carP1;//車輛名稱
	public??String?carP2;?//車輛類型
	?public?int?carP3;//載客量
?????public??int?carP4;//載貨量
?????public?int?carP5;?//租金每天
??????
?????public?CarProperty(String?newcarP1,String?newcarP2,
????		?int?newcarP3,int?newcarP4,int?newcarP5)?{
????	?carP1=newcarP1;
????	?carP2=newcarP2;
????	?carP3=newcarP3;
????	?carP4=newcarP4;
????	?carP5=newcarP5;???	
?????}

}

子類

package?com.zuche;

public?class?HuoChe?extends?CarProperty?{

	public?HuoChe(String?newcarP1,?String?newcarP2,?int?newcarP3,?int?newcarP4,?int?newcarP5)?{
		super(newcarP1,?newcarP2,?newcarP3,?newcarP4,?newcarP5);
		//?TODO?Auto-generated?constructor?stub
	}

	@Override
	public?String?toString()?{
		return?carP1?+?"?????????"?+?carP2?+?"????????????"?+?carP3?+?"????????"?+?carP4?+?"?????"
				+?carP5?;
	}

}

package?com.zuche;

public?class?KeChe?extends?CarProperty?{

	public?KeChe(String?newcarP1,?String?newcarP2,?int?newcarP3,?int?newcarP4,?int?newcarP5)?{
		super(newcarP1,?newcarP2,?newcarP3,?newcarP4,?newcarP5);
		//?TODO?Auto-generated?constructor?stub
	}
	public?String?toString()?{
		return?carP1?+?"?????????"?+?carP2?+?"????????????"?+?carP3?+?"????????"?+?carP4?+?"?????"
				+?carP5?;
	}

}

package?com.zuche;

public?class?PiKa?extends?CarProperty?{

	public?PiKa(String?newcarP1,?String?newcarP2,?int?newcarP3,?int?newcarP4,?int?newcarP5)?{
		super(newcarP1,?newcarP2,?newcarP3,?newcarP4,?newcarP5);
		//?TODO?Auto-generated?constructor?stub
	}
	public?String?toString()?{
		return?carP1?+?"?????????"?+?carP2?+?"????????????"?+?carP3?+?"????????"?+?carP4?+?"?????"
				+?carP5?;
	}
}

測試

package?com.zuche;
import?java.util.*;
public?class?Initial?{

	public?static?void?main(String[]?args)?{
		//?TODO?Auto-generated?method?stub
	CarProperty?huo1=new?HuoChe("1,奧迪",?"貨車",?2,?3,?100);
	CarProperty?huo2=new?HuoChe("2,奧拓",?"貨車",?2,?2,?80);
	?CarProperty?ke1=new?KeChe("3,寶馬",?"客車",?4,?0,?150);
	?CarProperty?ke2=new?KeChe("4,一汽",?"客車",?4,?0,?100);
?????CarProperty?pi1=new?PiKa("5,五菱",?"兩用",?8,?2,?80);
?????CarProperty?pi2=new?PiKa("6,奔馬",?"兩用",?2,?3,?60);
?????????int??sum=0;
		int?i3=0;
????System.out.println("請您選擇是否租車？");
????System.out.println("1,是????2,否");
????Scanner?input1=new?Scanner(System.in);
??????int?i1=input1.nextInt();
????if(i1==1)?{
????	System.out.println("車輛名稱???車輛類型???載客量/人???載貨量/噸???租金/每天");
????	System.out.println(huo1.toString());
????	System.out.println(huo2.toString());
????	System.out.println(ke1.toString());
????	System.out.println(ke2.toString());
????	System.out.println(pi1.toString());
????	System.out.println(pi2.toString());
???System.out.println("請您選擇租車數量：");
????	Scanner?input2=new?Scanner(System.in);
????	??int?i2=input2.nextInt();
????	??for(int?i=1;i<i2+1;i++)?{
????		??System.out.println("請輸入您要租用的第"+i+"輛車的編號");
????		??Scanner?input3=new?Scanner(System.in);
????		????i3=input3.nextInt();
????		??switch(i3)?{
????		??case?1:
????			??sum=sum+100;
????			??break;
????		??case?2:
????			??sum=sum+20;
????			??break;
????		??case?3:
????			??sum=sum+150;
????			??break;
????		??case?4:
????			??sum=sum+100;
????			??break;
????		??case?5:
????			??sum=sum+80;
????			??break;
????		??case?6:
????			??sum=sum+60;
????			??break;
????			??default:
????				??System.out.println("您輸入的編號是無效的！");
????		??
????		??}if(i3<0||i3>6)
????			??break;
????			??}if(i3>0&&i3<7)?{
????	???System.out.println("請輸入租用的天數");
????	??Scanner?input4=new?Scanner(System.in);
????	??int?sum1=input4.nextInt();
????	??sum=sum*sum1;
????	??System.out.println("總共租車："+i2+"輛，租用："+sum1+"天，共需："+sum+"元人民幣。");
????	??}else?{
????		??System.out.println("請重新操作！");
????	??}?}else?{
????	System.out.println("感謝使用該系統！");
????}
????
	}

}