1、精選優(yōu)質文檔-傾情為你奉上任務4：編寫程序，模擬銀行賬戶功能。要求如下：屬性：賬號、儲戶姓名、地址、存款余額、最小余額方法：存款、取款、查詢根據(jù)用戶操作顯示儲戶相關信息。如存款操作后，顯示儲戶原有余額、今日存款數(shù)額及最終存款余額；取款時，若最后余額小于最小余額，拒絕取款，并顯示“至少保留余額：XXX”。import java.util.Scanner;class Bank1private String account,name,address;private double over,minover;Bank1(String account,String name,String address,

2、double over,double minover)this.account=account;=name;this.address=address;this.over=over;this.minover=minover;public void deposit(double de)System.out.println("原有余額為"+over+"元");System.out.println("今日存款為"+de+"元");System.out.println("現(xiàn)有余額為"+(

3、over+de)+"元");this.over = over+de;public void withdrawals(double wi)if(over-wi)<minover)System.out.println("至少保留余額："+minover+"元");elseSystem.out.println("原有余額為"+over+"元");System.out.println("今日取款為"+wi+"元");System.out.println(&q

4、uot;現(xiàn)有余額為"+(over-wi)+"元");this.over = over-wi;public void inquiry()System.out.println("現(xiàn)有余額為"+over+"元");public class bank public static void main(String args) Scanner in = new Scanner(System.in);Bank1 b1 = new Bank1("1","2","3",100);in

5、t hi = 0,N,A;System.out.println("歡迎登陸銀行系統(tǒng)！");doSystem.out.println("1.存款");System.out.println("2.取款");System.out.println("3.查詢");System.out.println("請輸入上方數(shù)字選擇一項服務，謝謝。");N = in.nextInt();if(N = 1)System.out.println("請輸入您的存款金額。");b1.deposit(in

6、.nextDouble();else if(N = 2)System.out.println("請輸入您的取款金額。");b1.withdrawals(in.nextDouble();else if(N = 3)b1.inquiry();elseSystem.out.println("請輸入 '1','2'或者'3'。");continue;System.out.println("如果您想繼續(xù)操作，請輸入1，輸入其他整數(shù)退出系統(tǒng)。");A = in.nextInt();if(A != 1

7、)hi = 1;while(hi = 0);System.out.println("歡迎您的下次光臨，再見！");任務1： 設計一個學生類Student，其屬性有name（姓名）、age（年齡）和degree（學位）。由Student類派生出本科生類Undergraduate和研究生類Graduate，Undergraduate類增加屬性specialty（專業(yè)），研究生類增加屬性direction（研究方向）。每個類都有show（）方法，用于輸出屬性信息。class Studentpublic String getName() return name;public voi

8、d setName(String name) = name;public String getDegree() return degree;public void setDegree(String degree) this.degree = degree;public int getAge() return age;public void setAge(int age) this.age = age;private String name,degree;private int age;Student(String n,int a,String d)=n;t

9、his.age=a;this.degree=d;public void show()System.out.println("name:"+name+" age:"+age+" degree:"+degree);class Undergraduate extends Studentpublic String getSpecialty() return specialty;public void setSpecialty(String specialty) this.specialty = specialty;private String

10、 specialty;public Undergraduate(String n,int a,String d,String s)super(n,a,d);this.specialty=s;public void show()System.out.println("name:"+getName()+" age:"+getAge()+" degree:"+getDegree()+" specially:"+getSpecialty();class Graduate extends Studentpublic Stri

11、ng getDirection() return direction;public void setDirection(String direction) this.direction = direction;private String direction;public Graduate(String n,int a,String d,String di)super(n,a,d);this.direction=di;public void show()System.out.println("name:"+getName()+" age:"+getAge

12、()+" degree:"+getDegree()+" direction:"+getDirection();public class t01 public static void main(String args) Graduate G = new Graduate("zbb", 18, "xueshi", "tongxun");G.show();任務1： 創(chuàng)建類Rectangle，具有屬性length和width。該類具有計算 perimeter(周長)和area(面積)的方法，并有l(wèi)eng

13、th和width的設置和讀取方法。設置方法應檢驗length和width是否大于0.0并且小于20.0。import java.util.Scanner;class Rectangle public double getLength() return length;public void setLength(double length) this.length = length;public double getWidth() return width;public void setWidth(double width) this.width = width;private double le

14、ngth, width;public double perimeter() return 2 * this.length * this.width;public double area() return this.length * this.width;public void jianyan() if (this.length > 0.0 && this.length < 20.0) System.out.println("Length大于0.0并且小于20.0"); else System.out.println("Length并不大

15、于0.0并且小于20.0");if (this.width > 0.0 && this.width < 20.0) System.out.println("Width大于0.0并且小于20.0"); else System.out.println("Width并不大于0.0并且小于20.0");public class t01 public static void main(String args) Scanner in = new Scanner(System.in);Rectangle r = new Recta

16、ngle();System.out.print("Length = ");r.setLength(in.nextDouble();System.out.print("Width = ");r.setWidth(in.nextDouble();r.jianyan();System.out.println("Perimeter = " + r.perimeter();System.out.println("Area = " + r.area();任務2：定義一個實現(xiàn)常用數(shù)學運算的類MyMath，類中提供max()、mi

17、n()、sum()與average()四個靜態(tài)方法，每個方法帶有三個整形參數(shù)，分別實現(xiàn)對三個整數(shù)求取最大值、最小值、和值及平均值的運算。在主類中對任意輸入的三個整數(shù)，調用MyMath類的四種靜態(tài)方法，求取結果并輸出。import java.util.Scanner;abstract class MyMath public abstract int max(int a,int b,int c); public abstract int min(int a,int b,int c); public abstract int sum(int a,int b,int c); public abstra

18、ct double average(int a,int b,int c);public class main extends MyMath public int max ( int a, int b, int c) if (a > b && a > c) return a; else if (b > a && b > c) return b; else return c; public int min(int a, int b, int c) if (a < b && a < c) return a; else

19、 if (b < a && b < c) return b; else return c; public int sum(int a, int b, int c) return a + b + c; public double average(int a, int b, int c) return (a + b + c) / 3; public static void main(String args) Scanner in = new Scanner(System.in); main m = new main(); System.out.println("

20、;a b c"); int a,b,c; a=in.nextInt(); b=in.nextInt(); c=in.nextInt(); System.out.println("max:"+m.max(a,b,c); System.out.println("min:"+m.min(a,b,c); System.out.println("sum:"+m.sum(a,b,c); System.out.println("average:"+m.average(a,b,c); in.close();任務1： 請求

21、1到n的數(shù)的階乘之和。基本流程如下面三個圖所示。 package duihuakuang;import javax.swing.JFrame;import javax.swing.JOptionPane;public class test1 public static void main(String args) while (true) JFrame f = new JFrame(); / 創(chuàng)建一個應用程序框架窗口String ip = JOptionPane.showInputDialog(f, "請輸入一個數(shù)"); try int a = Integer.parseI

22、nt(ip);/if(ip.equals(null)|ip.equals("")break;【1】if (a < 0)continue;long sum = 0;long jie = 1;for (int i = 1; i <= a; i+) / 階乘之和jie *= i;sum += jie;if (sum > Long.MAX_VALUE | sum < 0) JOptionPane.showMessageDialog(f, "這數(shù)字太大了", "消息", JOptionPane.WARNING_MESSAGE);/【