Blog3
作者:互联网
前言 10-16周java学习总结
近几周PTA的作业以电信收费为主,考试内容涉及正则表达式,字符串的比较.输入.分割代码的复用性.面向对象设计,ArrayList的使用等等。题目量和难度都适中。
期末考试主要考察了对课本知识的运用,例如多态,继承,抽象类,抽象类ArrayList的用法等等.难度题量都适中。
同时实验五考察了javafx的应用。
设计与分析
实现南昌市电信分公司的计费程序,假设该公司针对手机和座机用户分别采取了两种计费方案,分别如下: 输入: 注意:以上两类信息,先输入所有开户信息,再输入所有通讯信息,最后一行以“end”结束。 输出: |
输入样例:在这里给出一组输入。例如:
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输出样例:在这里给出相应的输出。例如:
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import java.util.ArrayList; import java.util.Collections; import java.util.Scanner; import java.util.Comparator; import java.text.ParseException; import java.text.SimpleDateFormat; import java.util.Date; public class Main { public static void main(String[] args) { // TODO 自动生成的方法存根 Scanner in = new Scanner(System.in); ArrayList<User> x = new ArrayList<User>(); // UserRecords y = new UserRecords(); ArrayList<CallRecord> z = new ArrayList<CallRecord>(); LandlinePhoneCharging cost1 = new LandlinePhoneCharging(); MobilelinePhoneCharging cost2 = new MobilelinePhoneCharging(); while(true) { String a = in.nextLine(); if(a.equals("end")) { break; } if(jug(a)==3) { User b = new User(); String[] strarray=a.split(" "); b.setNumber(strarray[0].substring(2)); b.setChargeMode(strarray[1]); x.add(b); for (int i = 0; i < x.size(); i++) { for (int j = 0; j < x.size(); j++) { if (i != j && x.get(i).number.equals(x.get(j).number)) { x.remove(x.get(j)); } } } } else if(jug(a)==2){ User b = new User(); String[] strarray=a.split(" "); b.setNumber(strarray[0].substring(2)); b.setChargeMode(strarray[1]); x.add(b); for (int i = 0; i < x.size(); i++) { for (int j = 0; j < x.size(); j++) { if (i != j && x.get(i).number.equals(x.get(j).number)) { x.remove(x.get(j)); } } } } else if(jug(a)==1) { CallRecord b = new CallRecord(); String[] strarray=a.split(" ",6); b.setCallingAddressAreaCode(strarray[0].substring(2, 6)); b.setAnswerAddressAreaCode(strarray[1].substring(0, 4)); b.setCallingNumber(strarray[0].substring(2)); b.setAnswerNumber(strarray[1]); b.setStartTime(strarray[2].concat(" ").concat(strarray[3])); b.setEndTime(strarray[4].concat(" ").concat(strarray[5])); z.add(b); } else if(jug(a)==4) { CallRecord b = new CallRecord(); String[] strarray=a.split(" ",7); b.setCallingAddressAreaCode(strarray[0].substring(2, 6)); b.setAnswerAddressAreaCode(strarray[2]); b.setCallingNumber(strarray[0].substring(2)); b.setAnswerNumber(strarray[1]); b.setStartTime(strarray[3].concat(" ").concat(strarray[4])); b.setEndTime(strarray[5].concat(" ").concat(strarray[6])); z.add(b); }else if(jug(a)==5) { CallRecord b = new CallRecord(); String[] strarray=a.split(" ",8); b.setCallingAddressAreaCode(strarray[1]); b.setAnswerAddressAreaCode(strarray[3]); b.setCallingNumber(strarray[0].substring(2)); b.setAnswerNumber(strarray[2]); b.setStartTime(strarray[4].concat(" ").concat(strarray[5])); b.setEndTime(strarray[6].concat(" ").concat(strarray[7])); z.add(b); }else if(jug(a)==6) { CallRecord b = new CallRecord(); String[] strarray=a.split(" ",7); b.setCallingAddressAreaCode(strarray[1]); b.setAnswerAddressAreaCode(strarray[2].substring(0, 4)); b.setCallingNumber(strarray[0].substring(2)); b.setAnswerNumber(strarray[2]); b.setStartTime(strarray[3].concat(" ").concat(strarray[4])); b.setEndTime(strarray[5].concat(" ").concat(strarray[6])); z.add(b); } } for(int i=0;i<x.size();i++) { for(int j =0;j<z.size();j++) { if(x.get(i).ChargeMode.equals("0")) { if(z.get(j).answerAddressAreaCode.equals("NC")) { if(x.get(i).number.equals(z.get(j).callingNumber)) x.get(i).userRecords.addCallingInCityRecords(z.get(j)); }else if(z.get(j).answerAddressAreaCode.equals("JX")) { if(x.get(i).number.equals(z.get(j).callingNumber)) x.get(i).userRecords.addCallingInProvinceRecords(z.get(j)); }else if(z.get(j).answerAddressAreaCode.equals("ZG")){ if(x.get(i).number.equals(z.get(j).callingNumber)) x.get(i).userRecords.addCallingInLandRecords(z.get(j)); } }else { if(z.get(j).answerAddressAreaCode.equals("NC")) { if(x.get(i).number.equals(z.get(j).callingNumber)) { if(z.get(j).callingAddressAreaCode.equals("NC")) { x.get(i).userRecords.addPhonecallingInCityRecords(z.get(j)); }else if(z.get(j).callingAddressAreaCode.equals("JX")){ x.get(i).userRecords.addPhonecallingInProvinceRecords(z.get(j)); }else if(z.get(j).callingAddressAreaCode.equals("ZG")){ x.get(i).userRecords.addPhonecallingInLandRecords(z.get(j)); } } if(x.get(i).number.equals(z.get(j).answerNumber)) { if(z.get(j).answerAddressAreaCode.equals("NC")) { x.get(i).userRecords.addAnswerInInCityRecords(z.get(j)); }else if(z.get(j).answerAddressAreaCode.equals("JX")){ x.get(i).userRecords.addAnswerInInProvinceRecords(z.get(j)); }else if(z.get(j).answerAddressAreaCode.equals("ZG")){ x.get(i).userRecords.addAnswerInInLandRecords(z.get(j)); } } }else if(z.get(j).answerAddressAreaCode.equals("JX")) { if(x.get(i).number.equals(z.get(j).callingNumber)) { if(z.get(j).callingAddressAreaCode.equals("NC")) { x.get(i).userRecords.addPhonecallingInCityRecords(z.get(j)); }else if(z.get(j).callingAddressAreaCode.equals("JX")){ x.get(i).userRecords.addPhonecallingInProvinceRecords(z.get(j)); }else if(z.get(j).callingAddressAreaCode.equals("ZG")){ x.get(i).userRecords.addPhonecallingInLandRecords(z.get(j)); } } if(x.get(i).number.equals(z.get(j).answerNumber)) { if(z.get(j).answerAddressAreaCode.equals("NC")) { x.get(i).userRecords.addAnswerInInCityRecords(z.get(j)); }else if(z.get(j).answerAddressAreaCode.equals("JX")){ x.get(i).userRecords.addAnswerInInProvinceRecords(z.get(j)); }else if(z.get(j).answerAddressAreaCode.equals("ZG")){ x.get(i).userRecords.addAnswerInInLandRecords(z.get(j)); } } }else if(z.get(j).answerAddressAreaCode.equals("ZG")){ if(x.get(i).number.equals(z.get(j).callingNumber)) { if(z.get(j).callingAddressAreaCode.equals("NC")) { x.get(i).userRecords.addPhonecallingInCityRecords(z.get(j)); }else if(z.get(j).callingAddressAreaCode.equals("JX")){ x.get(i).userRecords.addPhonecallingInProvinceRecords(z.get(j)); }else if(z.get(j).callingAddressAreaCode.equals("ZG")){ x.get(i).userRecords.addPhonecallingInLandRecords(z.get(j)); } } if(x.get(i).number.equals(z.get(j).answerNumber)) { if(z.get(j).answerAddressAreaCode.equals("NC")) { x.get(i).userRecords.addAnswerInInCityRecords(z.get(j)); }else if(z.get(j).answerAddressAreaCode.equals("JX")){ x.get(i).userRecords.addAnswerInInProvinceRecords(z.get(j)); }else if(z.get(j).answerAddressAreaCode.equals("ZG")){ x.get(i).userRecords.addAnswerInInLandRecords(z.get(j)); } } } } } } Collections.sort(x, new MyComparatorToUser()); for(int i =0;i<x.size();i++) { if(x.get(i).ChargeMode.equals("0")) { x.get(i).balance = 100- cost1.calCost(x.get(i).userRecords); double q = 80-x.get(i).balance; if(i==x.size()-1) { System.out.print(x.get(i).number+" "+String.format("%.1f", q)+" "+String.format("%.1f", x.get(i).balance)); } else { System.out.println(x.get(i).number+" "+String.format("%.1f", q)+" "+String.format("%.1f", x.get(i).balance)); } } else { x.get(i).balance = 100- cost2.calCost(x.get(i).userRecords); double q = 85-x.get(i).balance; if(i==x.size()-1) { System.out.print(x.get(i).number+" "+String.format("%.1f", q)+" "+String.format("%.1f", x.get(i).balance)); } else { System.out.println(x.get(i).number+" "+String.format("%.1f", q)+" "+String.format("%.1f", x.get(i).balance)); } } } in.close(); } static class MyComparatorToUser implements Comparator<User>{ @Override public int compare(User u1, User u2) { double p = Double.parseDouble(u1.number); double q = Double.parseDouble(u2.number); if(u1.number.charAt(0)=='0'&&u2.number.charAt(0)=='0') { return (int)(p-q); } if(u1.number.charAt(0)=='0') { p=0; } if(u2.number.charAt(0)=='0') { q=0; } return (int)(p-q); } } public static int jug(String a) { String parrten1 = "t-0791[0-9]{7,8} [0-9]{3,4}[0-9]{7,8} [1-9]\\d{3}.([1-9]|1[0-2]).([1-9]|[1-2][0-9]|3[0-1])\\s(20|21|22|23|[0-1]\\d):[0-5]\\d:[0-5]\\d [1-9]\\d{3}.([1-9]|1[0-2]).([1-9]|[1-2][0-9]|3[0-1])\\s(20|21|22|23|[0-1]\\d):[0-5]\\d:[0-5]\\d"; String parrten2 = "u-0791[0-9]{7,8}[ ]0";//开户 String parrten3 = "u-(13[0-9]|14[01456879]|15[0-35-9]|16[2567]|17[0-8]|18[0-9]|19[0-35-9])\\d{8} 1";//开户 String parrten4 = "t-[0-9]{3,4}[0-9]{7,8} (13[0-9]|14[01456879]|15[0-35-9]|16[2567]|17[0-8]|18[0-9]|19[0-35-9])\\d{8} [0-9]{3,4} [1-9]\\d{3}.([1-9]|1[0-2]).([1-9]|[1-2][0-9]|3[0-1])\\s(20|21|22|23|[0-1]\\d):[0-5]\\d:[0-5]\\d [1-9]\\d{3}.([1-9]|1[0-2]).([1-9]|[1-2][0-9]|3[0-1])\\s(20|21|22|23|[0-1]\\d):[0-5]\\d:[0-5]\\d"; String parrten5 = "t-(13[0-9]|14[01456879]|15[0-35-9]|16[2567]|17[0-8]|18[0-9]|19[0-35-9])\\d{8} [0-9]{3,4} (13[0-9]|14[01456879]|15[0-35-9]|16[2567]|17[0-8]|18[0-9]|19[0-35-9])\\d{8} [0-9]{3,4} [1-9]\\d{3}.([1-9]|1[0-2]).([1-9]|[1-2][0-9]|3[0-1])\\s(20|21|22|23|[0-1]\\d):[0-5]\\d:[0-5]\\d [1-9]\\d{3}.([1-9]|1[0-2]).([1-9]|[1-2][0-9]|3[0-1])\\s(20|21|22|23|[0-1]\\d):[0-5]\\d:[0-5]\\d"; String parrten6 = "t-(13[0-9]|14[01456879]|15[0-35-9]|16[2567]|17[0-8]|18[0-9]|19[0-35-9])\\d{8} [0-9]{3,4} [0-9]{3,4}[0-9]{7,8} [1-9]\\d{3}.([1-9]|1[0-2]).([1-9]|[1-2][0-9]|3[0-1])\\s(20|21|22|23|[0-1]\\d):[0-5]\\d:[0-5]\\d [1-9]\\d{3}.([1-9]|1[0-2]).([1-9]|[1-2][0-9]|3[0-1])\\s(20|21|22|23|[0-1]\\d):[0-5]\\d:[0-5]\\d"; if(a.matches(parrten1)) { return 1; } else if(a.matches(parrten2)) { return 2; }else if(a.matches(parrten3)) { return 3; }else if(a.matches(parrten4)) { return 4; }else if(a.matches(parrten5)) { return 5; }else if(a.matches(parrten6)) { return 6; } return 0; } } class UserRecords { ArrayList<CallRecord> callingInCityRecords = new ArrayList<CallRecord>(); ArrayList<CallRecord> callingInProvinceRecords = new ArrayList<CallRecord>(); ArrayList<CallRecord> callingInLandRecords = new ArrayList<CallRecord>(); ArrayList<CallRecord> phonecallingInCityRecords = new ArrayList<CallRecord>(); ArrayList<CallRecord> phonecallingInProvinceRecords = new ArrayList<CallRecord>(); ArrayList<CallRecord> phonecallingInLandRecords = new ArrayList<CallRecord>(); ArrayList<CallRecord> answerInCityRecords = new ArrayList<CallRecord>(); ArrayList<CallRecord> answerInProvinceRecords = new ArrayList<CallRecord>(); ArrayList<CallRecord> answerInLandRecords = new ArrayList<CallRecord>(); ArrayList<MessageRecord> sendMessageRecords = new ArrayList<MessageRecord>(); ArrayList<MessageRecord> reciveMessageRecords = new ArrayList<MessageRecord>(); public void addCallingInCityRecords(CallRecord callRecord) { callingInCityRecords.add(callRecord); } public void addCallingInProvinceRecords(CallRecord callRecord) { callingInProvinceRecords.add(callRecord); } public void addCallingInLandRecords(CallRecord callRecord) { callingInLandRecords.add(callRecord); } public void addAnswerInInCityRecords(CallRecord answerRecord) { answerInCityRecords.add(answerRecord); } public void addAnswerInInProvinceRecords(CallRecord answerRecord) { answerInProvinceRecords.add(answerRecord); } public void addAnswerInInLandRecords(CallRecord answerRecord) { answerInLandRecords.add(answerRecord); } public void addSendMessageRecords(MessageRecord sendMessageRecord) { sendMessageRecords.add(sendMessageRecord); } public void addReciveMessageRecords(MessageRecord reciveMessageRecord) { reciveMessageRecords.add(reciveMessageRecord); } public ArrayList<CallRecord> getCallingInCityRecords() { return callingInCityRecords; } public ArrayList<CallRecord> getCallingInProvinceRecords() { return callingInProvinceRecords; } public ArrayList<CallRecord> getCallingInLandRecords() { return callingInLandRecords; } public ArrayList<CallRecord> getAnswerInCityRecords() { return answerInCityRecords; } public ArrayList<CallRecord> getAnswerInProvinceRecords() { return answerInProvinceRecords; } public ArrayList<CallRecord> getAnswerInLandRecords() { return answerInLandRecords; } public ArrayList<CallRecord> getPhonecallingInCityRecords() { return phonecallingInCityRecords; } public void addPhonecallingInCityRecords(CallRecord callRecord) { phonecallingInCityRecords.add(callRecord); } public ArrayList<CallRecord> getPhonecallingInProvinceRecords() { return phonecallingInProvinceRecords; } public void addPhonecallingInProvinceRecords(CallRecord callRecord) { phonecallingInProvinceRecords.add(callRecord); } public ArrayList<CallRecord> getPhonecallingInLandRecords() { return phonecallingInLandRecords; } public void addPhonecallingInLandRecords(CallRecord callRecord) { phonecallingInLandRecords.add(callRecord); } public ArrayList<MessageRecord> getSendMessageRecords() { return sendMessageRecords; } public ArrayList<MessageRecord> getReciveMessageRecords() { return reciveMessageRecords; } } class User { UserRecords userRecords = new UserRecords(); double balance = 100; String ChargeMode; String number; public User() { } public double calBalance() { return 100-calCost(); } public double calCost() { return 0; } public UserRecords getUserRecords() { return userRecords; } public void setUserRecords(UserRecords userRecords) { this.userRecords = userRecords; } public double getBalance() { return balance; } public void setChargeMode(String chargeMode) { ChargeMode = chargeMode; } public String getNumber() { return number; } public void setNumber(String number) { this.number = number; } } class MobilePhoneInProvinceCallRule extends CallChargeRule{ @Override public double calCost(ArrayList<CallRecord> callRecords) { double cost=0; if(callRecords.size()==0) { return 0; } for(int i=0;i<callRecords.size();i++) { long a = (callRecords.get(i).endTime.getTime()-callRecords.get(i).startTime.getTime())/1000; long b = a%60; if(b==0&& (callRecords.get(i).endTime.getTime()-callRecords.get(i).startTime.getTime())>0) { cost = cost + (a/60)*0.1; }else { cost = cost + ((a-b)/60+1)*0.3; } } return cost; } } class MobilePhoneInProvinceAnswerRule extends CallChargeRule{ @Override public double calCost(ArrayList<CallRecord> callRecords) { double cost=0; return cost; } } class MobilePhoneInlandCallRule extends CallChargeRule{ @Override public double calCost(ArrayList<CallRecord> callRecords) { double cost=0; if(callRecords.size()==0) { return 0; } for(int i=0;i<callRecords.size();i++) { long a = (callRecords.get(i).endTime.getTime()-callRecords.get(i).startTime.getTime())/1000; long b = a%60; if(b==0&& (callRecords.get(i).endTime.getTime()-callRecords.get(i).startTime.getTime())>0) { cost = cost + (a/60)*0.1; }else { cost = cost + ((a-b)/60+1)*0.6; } } return cost; } } class MobilePhoneInlandAnswerRule extends CallChargeRule{ public double calCost(ArrayList<CallRecord> callRecords) { double cost=0; if(callRecords.size()==0) { return 0; } for(int i=0;i<callRecords.size();i++) { if(callRecords.get(i).answerAddressAreaCode.equals("ZG")) { long a = (callRecords.get(i).endTime.getTime()-callRecords.get(i).startTime.getTime())/1000; long b = a%60; if(b==0&& (callRecords.get(i).endTime.getTime()-callRecords.get(i).startTime.getTime())>0) { cost = cost + (a/60)*0.1; }else { cost = cost + ((a-b)/60+1)*0.3; } } } return cost; } } class MobilePhoneInCityCallRule extends CallChargeRule{ @Override public double calCost(ArrayList<CallRecord> callRecords) { double cost=0; if(callRecords.size()==0) { return 0; } for(int i=0;i<callRecords.size();i++) { long a = (callRecords.get(i).endTime.getTime()-callRecords.get(i).startTime.getTime())/1000; long b = a%60; if(b==0&& (callRecords.get(i).endTime.getTime()-callRecords.get(i).startTime.getTime())>0) { cost = cost + (a/60)*0.1; }else { if(callRecords.get(i).answerAddressAreaCode.equals("NC")) cost = cost + ((a-b)/60+1)*0.1; else if(callRecords.get(i).answerAddressAreaCode.equals("JX")) cost = cost + ((a-b)/60+1)*0.2; else cost = cost + ((a-b)/60+1)*0.3; } } return cost; } } class MobilePhoneInCityAnswerRule extends CallChargeRule{ @Override public double calCost(ArrayList<CallRecord> callRecords) { double cost=0; return cost; } } class MobilelinePhoneCharging extends ChargeMode{ double monthlyRent = 15; public MobilelinePhoneCharging() { super(); } @Override public double calCost(UserRecords userRecords) { MobilePhoneInCityCallRule a = new MobilePhoneInCityCallRule(); MobilePhoneInlandCallRule b = new MobilePhoneInlandCallRule(); MobilePhoneInProvinceCallRule c = new MobilePhoneInProvinceCallRule(); MobilePhoneInCityAnswerRule d = new MobilePhoneInCityAnswerRule(); MobilePhoneInProvinceAnswerRule e = new MobilePhoneInProvinceAnswerRule(); MobilePhoneInlandAnswerRule f = new MobilePhoneInlandAnswerRule(); return a.calCost(userRecords.getPhonecallingInCityRecords())+c.calCost(userRecords.getPhonecallingInProvinceRecords())+b.calCost(userRecords.getPhonecallingInLandRecords())+ f.calCost(userRecords.getAnswerInLandRecords())+15; } @Override public double getMonthlyRent() { return monthlyRent; } } class MessageRecord { String message; public String getMessage() { return message; } public void setMessage(String message) { this.message = message; } } class LandPhoneInProvinceRule extends CallChargeRule{ @Override public double calCost(ArrayList<CallRecord> callRecords) { double cost=0; if(callRecords.size()==0) { return 0; } for(int i=0;i<callRecords.size();i++) { long a = (callRecords.get(i).endTime.getTime()-callRecords.get(i).startTime.getTime())/1000; long b = a%60; if(b==0&& (callRecords.get(i).endTime.getTime()-callRecords.get(i).startTime.getTime())>0) { cost = cost + (a/60)*0.3; }else { cost = cost + ((a-b)/60+1)*0.3; } } return cost; } } class LandPhoneInlandRule extends CallChargeRule{ @Override public double calCost(ArrayList<CallRecord> callRecords) { double cost=0; if(callRecords.size()==0) { return 0; } for(int i=0;i<callRecords.size();i++) { long a = (callRecords.get(i).endTime.getTime()-callRecords.get(i).startTime.getTime())/1000; long b = a%60; if(b==0&& (callRecords.get(i).endTime.getTime()-callRecords.get(i).startTime.getTime())>0) { cost = cost + (a/60)*0.6; }else { cost = cost + ((a-b)/60+1)*0.6; } } return cost; } } class LandPhoneInCityRule extends CallChargeRule{ @Override public double calCost(ArrayList<CallRecord> callRecords) { double cost=0; if(callRecords.size()==0) { return 0; } for(int i=0;i<callRecords.size();i++) { long a = (callRecords.get(i).endTime.getTime()-callRecords.get(i).startTime.getTime())/1000; long b = a%60; if(b==0&& (callRecords.get(i).endTime.getTime()-callRecords.get(i).startTime.getTime())>0) { cost = cost + (a/60)*0.1; }else { cost = cost + ((a-b)/60+1)*0.1; } } return cost; } } class LandlinePhoneCharging extends ChargeMode{ double monthlyRent = 20; public LandlinePhoneCharging() { super(); } @Override public double calCost(UserRecords userRecords) { LandPhoneInCityRule a = new LandPhoneInCityRule(); LandPhoneInlandRule b = new LandPhoneInlandRule(); LandPhoneInProvinceRule c = new LandPhoneInProvinceRule(); return a.calCost(userRecords.getCallingInCityRecords())+b.calCost(userRecords.getCallingInLandRecords())+c.calCost(userRecords.getCallingInProvinceRecords())+20; } @Override public double getMonthlyRent() { return monthlyRent; } } abstract class CommunicationRecord { String callingNumber; String answerNumber; public String getCallingNumber() { return callingNumber; } public void setCallingNumber(String callingNumber) { this.callingNumber = callingNumber; } public String getAnswerNumber() { return answerNumber; } public void setAnswerNumber(String answerNumber) { this.answerNumber = answerNumber; } } abstract class ChargeRule { } abstract class ChargeMode { ArrayList<ChargeRule> chargeRules = new ArrayList<ChargeRule>(); public ArrayList<ChargeRule> getChargeRules() { return chargeRules; } public void setChargeRules(ArrayList<ChargeRule> chargeRules) { this.chargeRules = chargeRules; } public double calCost(UserRecords userRecords) { return 0; } public double getMonthlyRent() { return 0; } } class CallRecord extends CommunicationRecord{ Date startTime; Date endTime; String callingAddressAreaCode; String answerAddressAreaCode; SimpleDateFormat a = new SimpleDateFormat ("yyyy.MM.dd HH:mm:ss"); public CallRecord() { super(); // TODO 自动生成的构造函数存根 } public Date getStartTime() { return startTime; } public void setStartTime(String startTime) { try { this.startTime = a.parse(startTime); } catch (ParseException e) { // TODO 自动生成的 catch 块 e.printStackTrace(); } } public Date getEndTime() { return endTime; } public void setEndTime(String endTime) { try { this.endTime = a.parse(endTime); } catch (ParseException e) { // TODO 自动生成的 catch 块 e.printStackTrace(); } } public String getCallingAddressAreaCode() { return callingAddressAreaCode; } public void setCallingAddressAreaCode(String callingAddressAreaCode) { if(callingAddressAreaCode.matches("0791")) this.callingAddressAreaCode = "NC"; else if(callingAddressAreaCode.matches("(079[0-9]|0701)")){ this.callingAddressAreaCode = "JX"; }else { this.callingAddressAreaCode = "ZG"; } } public String getAnswerAddressAreaCode() { return answerAddressAreaCode; } public void setAnswerAddressAreaCode(String answerAddressAreaCode) { if(answerAddressAreaCode.matches("0791")) this.answerAddressAreaCode = "NC"; else if(answerAddressAreaCode.matches("(079[0-9]|0701)")){ this.answerAddressAreaCode = "JX"; }else { this.answerAddressAreaCode = "ZG"; } } public boolean isMobilePhoneNumber(String Number) { if(Number.matches("(13[0-9]|14[01456879]|15[0-35-9]|16[2567]|17[0-8]|18[0-9]|19[0-35-9])\\d{8})")) { return true; } return false; } } abstract class CallChargeRule extends ChargeRule{ public double calCost(ArrayList<CallRecord> callRecords) { return 0; } }
本次作业难度较大,代码写的有点乱,首先用while循环确保循环输入,直到end退出程序,输入一条语句立刻进行判断,执行开户,或者记录操作,如果输入两个相同的号码,将取消开户,对于计费,使用的是记录操作,记录下后传入ArrayLis的用户中储存起来,最后用costcal函数进行计算,再返回结果并保留两位小数,在这之前使用comperto进行排序,再将用户的信息按顺序输出。中间过程比较繁杂,细节比较多,就不再一一赘述。类图如下。
一、实验目的 1、了解JavaFX的基本原理和基本组件; 2、能够熟练应用JavaFX组件进行界面设计; 3、掌握Java的事件驱动机制、lambda表达式; 4、掌握shape形状类的使用。 |
一、实验目的 1、了解JavaFX的基本原理和基本组件; 2、能够熟练应用JavaFX组件进行界面设计; 3、掌握Java的事件驱动机制、lambda表达式; 4、掌握shape形状类的使用。 |
一、实验步骤 1、 请修改实验四农夫过河游戏的代码,将用户界面改为图形界面,界面效果自行设计。 2、 请画出修改后的类图,并说明在界面中使用了哪些技巧以达到较好地界面效果。 3、 途中遇见了图片无法加载的问题图3-1,经过寻找,发现图片路径输入有误,修改路径后,程序正常运行。 4、 类图见代码末尾。图1-1 |
途中遇见了图片无法加载的问题,经过寻找,发现图片路径输入有误,修改路径后,程序正常运行。
通过按顺序点击农夫带羊过河—农夫独自过河—农夫带狼过河—农夫带羊过河—农夫带白菜过河—农夫独自过河—农夫带羊过河后,程序执行完毕,最终得到结果如见代码末尾2-1,程序正常运行,输出结果正常,点击农夫独自过河,得到结果如2-2,程序正常运行,输出正常。
通过javafx的实验让我掌握了基本的图形界面程序,让非专业用户能够一目了然程序的操作。将算法和用户操作分开,让程序维护和修改更容易,减少以后代码的修改量。过程中遇到了图片为空,无法加载的问题,后来发现是因为路径搞错了,修改路径以后正常运行。
类图及相关运行界面如下。
踩坑心得:
实验中存在不少细节问题,例如狼先吃羊,故羊无法再吃白菜,白菜存活,故需判断当羊进食时是否活着等等问题。本题可将农夫,狼,羊,白菜的共有属性放入一个父类中,用船来执行过河的操作,降低代码的耦合度,提高代码的复用性,方便日后修改添加新类。途中遇见了图片无法加载的问题,经过寻找,发现图片路径输入有误,修改路径后,程序正常运行。
改进建议:
建议多提供输入样例,方便进行判断,修善代码,多出些和所学契合的题目。
总结:
学会了使用抽象类,抽象方法继承与多态,使用容器类,降低代码的耦合度,提高复用性。同时学会了流的运用,文件流的读入写出等等操作,学会了使用异常处理,声明,抛出,抓取异常,优雅的终止错误。对于以上学习内容,对于容器类应该进一步学习和研究熟练的使用ArrayList , 学会了使用fx中的类,例如button等。希望老师能够提供答案或者上课讲一讲这些题目。
标签:return,String,Blog3,strarray,cost,ArrayList,public 来源: https://www.cnblogs.com/xsxyyds/p/16389409.html