初學小白.借鑒了其他前輩的方法，求大佬指正一下可以優化的地方
//main入口
import java.util.Scanner;
public class Rukou {
? static Che c[]= {new Zairen("大眾",300,4),new Zairen("雪鐵龍",300,4),new Zairen("蝙蝠車",90000,1),new Zairen("高達",8000000,2),
? ? new Zaihuo("小型卡車",3000,60),new Zaihuo("中型卡車",5000,100),new Zaihuo("重型卡車",9000,300),?
? ? new Zairh("皮卡",400,4,0.5),new Zairh("輪船",600000,200,1000),new Zairh("飛機",700000,300,6000),new Zairh("火車",800000,6000,80000)
? ? };
public static void main(String[] args) {
// TODO Auto-generated method stub
Scanner in=new Scanner(System.in);
? ? System.out.println("歡迎登陸租車程序"+"\n"+"確定租車（1）還是不足租車（2）");
? ? int k=in.nextInt();?
? ? if(k==1) {
? ? System.out.println("以下為租車列表");
? ? System.out.println("序號"+"\t"+"車名"+"\t"+"租金"+"\t"+"\t"+"作用");
? ? for (int i=0,q=1;i<=c.length-1;++i,++q) {
? ? System.out.println(q+c[i].sd()+c[i].toString());
? ? }
? ? System.out.println("請問你要租幾輛車");
int qa=in.nextInt();
int b=0;
? ? int zx[]=new int[qa];
while(b<qa) {
try {
System.out.println("請輸入第"+(b+1)+"輛車的序號");
zx[b]=in.nextInt();
++b;
}catch(Exception e) {
System.out.println("輸入錯誤請重新輸入");
}
}
int zc[]=new int[zx.length];
int h=0;
int j=1;
for(int g:zx) {
System.out.println("第"+j+"輛車:"+c[g-1].getK()+"需要租幾天");
zc[h]=in.nextInt();
++h;
++j;
}
System.out.println("------"+"以下是您的賬單"+"------");
System.out.println("序號"+"\t"+"車名"+"\t"+"已租天數"+"\t"+"單價/1天"+"\t"+"\t"+"總金額"+"\t"+"作用");
double y=0;
? ? for(int g=0;g<zx.length;++g) {
System.out.println((g+1)+"\t"+c[(zx[g]-1)].getK()+"\t"+zc[g]+"天"+"\t"+c[(zx[g]-1)].getJg()+"/1天"+"\t"+"\t"+(c[(zx[g])-1].getJg()*zc[g])+c[(zx[g]-1)].toString());
? ? ? ?y=y+(c[(zx[g]-1)].getJg()*zc[g]);
? ? }
? ?System.out.println("\t"+("\t")+"\t"+"\t"+"\t"+"\t"+"需付款總計:"+y+"元");
? ? }else if(k==2||k>2){?
? ? System.out.println("不租車你點個雞兒");
? ? }
}
}
//父 類
public abstract class Che {
private String k;
private int sl;
private double zl;
public int getSl() {
return sl;
}
public double getZl() {
return zl;
}
public void setSl(int sl) {
this.sl = sl;
}
public void setZl(double zl) {
this.zl = zl;
}
public String getK() {
return k;
}
public int getJg() {
return jg;
}
private int jg;
public Che(String k,int jg) {
this.k=k;
this.jg=jg;
}
/*
public String hzh() {
return? k+kg+ jg+"/1天" + kg +"載貨:"+zl+"噸"? ?;
}
public void seth(String k,int jg,double zl) {
this.k = k;
this.jg=jg;
this.zl=zl;
}
public String getK() {
return? k+kg+ jg+"/1天" + kg +"載人:"+sl+"人" ;
}
public void setr(String k,int jg,int sl) {
this.k = k;
this.jg=jg;
this.sl=sl;
}
*/
public void setK(String k) {
this.k = k;
}
public String sd() {
return "\t"+k+"\t"+ jg+"/1天" ;
}
public abstract String toString();
public void setJg(int jg) {
this.jg = jg;
}
}
//子類Zaihuo
public class Zaihuo extends Che implements Zaizhong{
private double zl;
Zaihuo(String k,int jg,double zl){
? ? super(k,jg);
? ? this.zl=zl;
? ? }
@Override
public String toString() {
return? "\t" +"載貨:"+zl+"噸"? ;
}
@Override
public void zl(double zl) {
// TODO Auto-generated method stub
this.zl=zl;
}
@Override
public double zhfh() {
// TODO Auto-generated method stub
return? zl? ;
}
}
//子類Zairen
public class Zairen extends Che implements JIekou {
private int sl;
Zairen(String k,int jg,int sl){
? ? super(k,jg);
? ? this.sl=sl;
? ?
? ? }
@Override
public String toString() {
return? "\t"+"載人:"+sl+"人" ;
}
@Override
public void sl(int sl) {
// TODO Auto-generated method stub
this.sl=sl;
}
@Override
public int zrfh() {
// TODO Auto-generated method stub
return sl;
}
?
}
//子類Zairh
public class Zairh extends Che implements JIekou,Zaizhong{
private int sl;
private double zl;
Zairh(String k,int jg,int sl,double zl){
? ? super(k,jg);
? ? this.sl=sl;
? ? this.zl=zl;
? ? }
@Override
public String toString() {
return? "\t"+"載人:"+sl+"人" +"載重:"+zl+"噸";
}
@Override
public void zl(double zl) {
// TODO Auto-generated method stub
this.zl=zl;
}
@Override
public double zhfh() {
// TODO Auto-generated method stub
return zl;
}
@Override
public void sl(int sl) {
// TODO Auto-generated method stub
this.sl=sl;
}
@Override
public int zrfh() {
// TODO Auto-generated method stub
return sl;
}
}
//接口 JIekou
public interface JIekou {
void sl(int sl);
? ? int zrfh();
}
//接口Zaizhong
public interface Zaizhong {
public void zl(double zl);
? public? double zhfh();
}
2019-05-13
膜拜大神