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- import java.util.*;
; q5 x4 J) S! ], c5 B i - public class Main {
% u( Q3 k M4 k - public static void main(String[] args) {
: I" _* w; ^' N" l# S, I" h, n, P! A; ] - String pName1="苹果";
6 Y; y( f) i( ] - double pPrice1=3.9;; J2 f: J8 m+ O- }8 `# x& l/ }. A
- String pNums1="1001";
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- String pName2="香蕉"; O) W4 Q: ~1 j% V, G7 L* S' }
- double pPrice2=5.6;, H+ ?6 r7 d7 y
- String pNums2="1002"; o* g' E' r$ U# w) N1 ?
- $ i: i3 w! N+ Z7 s* H; w, D2 z6 f
- String pName3="橘子";7 i/ C! y! S$ M! v2 s1 N
- double pPrice3=4.5;
& y3 j0 g- j D! ` - String pNums3="1003";
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3 ~6 k8 w7 C( F8 P2 | - Scanner s =new Scanner(System.in);5 u% A$ G' O& n; N9 P* o# l/ q
- System.out.println("欢迎进入超市收银系统!");
# z. l& |# @( M! X* f - System.out.println("请输入商品编号:");/ f+ @+ h+ q9 Y/ h5 v( @
- String num =s.next();
5 N! [. S( u: b' P) N7 J. u. z - System.out.println("请输入购买的重量(斤):");
, r! y- ^- I; B" `' D& u, l - double weight=s.nextDouble();
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4 k5 z( R. i) i! w9 k3 C, B - String pName ="";
6 {9 H3 m( b. w% _. j3 E2 a! U7 | - double pPrice=0;
( a1 L; g( i5 g" e$ L - if(num.equals(pNums1)){4 b, W4 x+ G1 U" E/ k6 Q3 ]
- pName=pName1;
0 B. s. s3 [$ G8 \ - pPrice=pPrice1;
2 D( W. f9 S" V; d6 x5 k( e+ ?- E - }else if(num.equals(pNums2)){
% L) D3 N' z* Q - pName=pName2;
# t; ?3 V' e' c- U% Y& P - pPrice=pPrice2;
. B' y9 ]! u6 r0 V! ^" S. ?4 T - }else if(num.equals(pNums3)){7 T# X% i. Y1 E, \
- pName=pName3;
& S3 Y9 M. i5 o, F; N8 _ - pPrice=pPrice3;
9 ~5 p; m& G# s! {8 A) f2 W9 N% X# ?5 c - }else{
, D, e* \4 i7 {" i) o - System.out.println("输入错误");2 {6 S/ J1 X6 x$ N- X6 N
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- System.out.println("您购买的商品是:"+pName+" "+"单价:"+pPrice+"元"+" "+"一共:"+pPrice*weight+"元");+ E9 i. |" U% d
- System.out.println("请输入收银(元):");
1 u. K0 k3 t2 ~! W7 x/ L8 } - double money =s.nextDouble();+ @; V0 H$ t3 L/ P/ v0 H% y! K
- double change=money-pPrice*weight;# B& l* {% b2 D
- System.out.println("找零:"+change);2 d7 e0 P, ]; r3 B1 n1 L4 h! N6 ]
- }
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