Merge branch 'main' of http://git.innoschool.org:3000/WangJunyue/java

DataCleaner.java

@@ -0,0 +1,31 @@
+package Homework;
+
+public class DataCleaner {
+    public static void main(String[] args) {
+        int[] sensorData = {85, -5, 92, 0, 105, 999, 88, 76};
+
+        int validSum = 0;   // 有效数据总和
+        int validCount = 0; // 有效数据个数
+
+        // 请在此处编写你的流程控制代码
+       for (int i=0;i<sensorData.length;i++){
+           if(sensorData[i]>=1&&sensorData[i]<=100){
+               validSum+=sensorData[i];
+               validCount++;
+           }else if((sensorData[i]>100||sensorData[i]<=0)&&sensorData[i]!=999){
+               System.out.println("警告：发现越界数据 [数值]，已跳过");
+               continue;
+           }else if(sensorData[i]==999){
+               System.out.println("致命错误：传感器掉线，终止处理");
+               break;
+           }
+    }
+       if (validCount>0){
+           double average=0;
+           average=(double)validSum/validCount;
+           System.out.println("有效数据平均值为："+average);
+       }else{
+           System.out.println("无有效的数据");
+       }
+}
+}

TemperatureConverter

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+import java.util.Scanner;
+
+/**
+ * 温度转换器程序
+ * 支持摄氏度 (C) 与华氏度 (F) 之间的双向转换
+ * 支持控制台交互输入和命令行参数两种模式
+ */
+public class TemperatureConverter {
+
+    /**
+     * 将摄氏度转换为华氏度
+     * @param c 摄氏温度值（浮点型）
+     * @return 对应的华氏温度值（浮点型）
+     */
+    public static double celsiusToFahrenheit(double c) {
+        return c * 9.0 / 5.0 + 32.0;
+    }
+
+    /**
+     * 将华氏度转换为摄氏度
+     * @param f 华氏温度值（浮点型）
+     * @return 对应的摄氏温度值（浮点型）
+     */
+    public static double fahrenheitToCelsius(double f) {
+        return (f - 32.0) * 5.0 / 9.0;
+    }
+
+    /**
+     * 处理温度转换核心逻辑
+     * @param value 温度数值
+     * @param unit 温度单位（C/F，不区分大小写）
+     */
+    public static void convert(double value, String unit) {
+        String upperUnit = unit.toUpperCase();
+        if (upperUnit.startsWith("C")) {
+            double f = celsiusToFahrenheit(value);
+            System.out.printf("%.2f °C = %.2f °F%n", value, f);
+        } else if (upperUnit.startsWith("F")) {
+            double c = fahrenheitToCelsius(value);
+            System.out.printf("%.2f °F = %.2f °C%n", value, c);
+        } else {
+            System.out.println("未知单位，请使用 C 或 F。");
+        }
+    }
+
+    /**
+     * 控制台交互模式：提示用户输入并处理转换
+     */
+    public static void interactiveMode() {
+        Scanner scanner = new Scanner(System.in);
+        System.out.print("请输入要转换的温度与单位（例如 36.6 C 或 97 F）：");
+        String input = scanner.nextLine().trim();
+        scanner.close();
+
+        if (input.isEmpty()) {
+            System.out.println("输入为空，程序退出。");
+            return;
+        }
+
+        try {
+            String[] parts = input.split(" ");
+            double value = Double.parseDouble(parts[0]);
+            String unit = parts.length > 1 ? parts[1] : "C";
+            convert(value, unit);
+        } catch (Exception e) {
+            System.out.println("输入解析失败，请按示例输入数值与单位，例如：36.6 C");
+        }
+    }
+
+    /**
+     * 主方法：支持命令行参数和交互两种模式
+     * @param args 命令行参数，格式为 [温度数值] [单位]，例如 36.6 C
+     */
+    public static void main(String[] args) {
+        // 命令行参数模式
+        if (args.length >= 1) {
+            try {
+                double value = Double.parseDouble(args[0]);
+                String unit = args.length >= 2 ? args[1] : "C";
+                convert(value, unit);
+            } catch (Exception e) {
+                System.out.println("命令行参数解析失败，请按格式输入：java TemperatureConverter 36.6 C");
+            }
+        } else {
+            // 交互模式
+            interactiveMode();
+        }
+    }
+
+    /**
+     * 批量转换：从文件读取多行温度数据并输出结果
+     * @param filePath 文件路径，每行格式为「数值 单位」，例如 36.6 C
+     */
+    public static void batchConvertFromFile(String filePath) {
+        try (java.io.BufferedReader br = new java.io.BufferedReader(new java.io.FileReader(filePath))) {
+            String line;
+            while ((line = br.readLine()) != null) {
+                String trimLine = line.trim();
+                if (trimLine.isEmpty()) continue;
+                String[] parts = trimLine.split(" ");
+                double value = Double.parseDouble(parts[0]);
+                String unit = parts.length > 1 ? parts[1] : "C";
+                System.out.print("处理行：" + line + " → ");
+                convert(value, unit);
+            }
+        } catch (Exception e) {
+            System.out.println("读取文件失败：" + e.getMessage());
+        }
+    }
+}

w2/DataCleaner.java

@@ -0,0 +1,31 @@
+package Homework;
+
+public class DataCleaner {
+    public static void main(String[] args) {
+        int[] sensorData = {85, -5, 92, 0, 105, 999, 88, 76};
+
+        int validSum = 0;   // 有效数据总和
+        int validCount = 0; // 有效数据个数
+
+        // 请在此处编写你的流程控制代码
+       for (int i=0;i<sensorData.length;i++){
+           if(sensorData[i]>=1&&sensorData[i]<=100){
+               validSum+=sensorData[i];
+               validCount++;
+           }else if((sensorData[i]>100||sensorData[i]<=0)&&sensorData[i]!=999){
+               System.out.println("警告：发现越界数据 [数值]，已跳过");
+               continue;
+           }else if(sensorData[i]==999){
+               System.out.println("致命错误：传感器掉线，终止处理");
+               break;
+           }
+    }
+       if (validCount>0){
+           double average=0;
+           average=(double)validSum/validCount;
+           System.out.println("有效数据平均值为："+average);
+       }else{
+           System.out.println("无有效的数据");
+       }
+}
+}

w3/BankAccount.java

@@ -0,0 +1,43 @@
+
+public class BankAccount {
+    private String accountNumber;
+    private String ownerName;
+    private double balance;
+    public BankAccount(String accountNumber, String ownerName, double balance){
+        this.accountNumber = accountNumber;
+        this.ownerName = ownerName;
+        this.balance=0.0;
+    }
+    public void deposit(double amount){
+        if (  amount >0.0){
+            this.balance+=amount;
+            System.out.printf("存款成功，余额为：%f\n",this.balance);
+        } else{
+            System.out.println("存款失败，金额必须大于0.0\n");
+        }
+    }
+    public void withdraw (double amount){
+        if (amount>0.0 &&amount<this.balance){
+            this.balance-=amount;
+            System.out.printf("取款成功，余额为：%f\n",this.balance);
+        } else{
+            System.out.println("取款失败，金额必须大于0.0且小于余额\n");
+        }
+        }
+        public double getbalance(){
+           return balance;
+        }
+        public String getAccountNumber(){
+           return accountNumber;
+        }
+        public String getOwnerName(){
+           return ownerName;
+        }
+        public void setAccountNumber(String accountNumber){
+           this.accountNumber = accountNumber;
+        }
+
+
+
+    }
+

w3/Employee.java

@@ -0,0 +1,49 @@
+package Homework;
+
+public class Employee {
+    private String id;
+    private String name;
+    private String department;
+    private double salary;
+    public Employee(String id, String name, String department){
+        this.id = id;
+        this.name = name;
+        this.department = department;
+    }
+    public void setSalary(double salary){
+        if (salary>=2000){
+            this.salary = salary;
+        }
+    }
+    public double getSalary(){
+        return salary;
+    }
+    public void setDepartment(String department){
+        this.department = department;
+    }
+    public String getDepartment(){
+        return department;
+    }
+    public void setName(String name){
+        this.name = name;
+    }
+    public String getName(){
+        return name;
+    }
+    public void setId(String id){
+        this.id = id;
+    }
+    public String getId(){
+        return id;
+    }
+    public void raiseSalary(double percent){
+         double newSalary=this.salary*(1+percent/100);
+        if (newSalary>=2000){
+            this.salary = newSalary;
+        }
+    }
+}
+
+
+
+

w3/EmployeeTest.java

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+package Homework;
+
+public class EmployeeTest {
+
+        public static void main(String[] args) {
+            Employee xiaoming = new Employee("1", "xiaoming", "技术部");
+            xiaoming.setSalary(3000);
+            System.out.println(xiaoming.getId() + " " + xiaoming.getName() + " " + xiaoming.getDepartment() + " " + xiaoming.getSalary());
+            xiaoming.raiseSalary(10);
+            System.out.println(xiaoming.getId() + " " + xiaoming.getName() + " " + xiaoming.getDepartment() + " " + xiaoming.getSalary());
+
+            Employee xiaohong = new Employee("2", "xiaohong", "销售部");
+            xiaohong.setSalary(2000);
+            System.out.println(xiaohong.getId() + " " + xiaohong.getName() + " " + xiaohong.getDepartment() + " " + xiaohong.getSalary());
+            xiaohong.raiseSalary(15);
+            System.out.println(xiaohong.getId() + " " + xiaohong.getName() + " " + xiaohong.getDepartment() + " " + xiaohong.getSalary());
+        }
+    }
+

w4/Shape.java

@@ -0,0 +1,39 @@
+package learn;
+
+public abstract class Shape {
+    public abstract double getArea();
+}
+class Circle extends Shape{
+    private double radius;
+    public Circle(double radius){
+        this.radius=radius;
+    }
+    @Override
+    public double getArea(){
+        return Math.PI*radius*radius;
+    }
+}
+class Rectangle extends Shape{
+    private double length;
+    private double width;
+    public Rectangle(double length,double width){
+        this.length=length;
+        this.width=width;
+    }
+    @Override
+    public double getArea(){
+        return length*width;
+    }
+}
+class Triangle extends Shape{
+    private double base;
+    private double height;
+    public Triangle(double base,double height){
+        this.base=base;
+        this.height=height;
+    }
+    @Override
+    public double getArea(){
+        return base*height/2;
+    }
+}

w4/ShapeUtil.java

@@ -0,0 +1,11 @@
+package learn;
+
+public class ShapeUtil {
+    public static void printArea(Shape shape){
+        System.out.println(shape.getArea());
+    }
+    public static void main(String[]args){
+        Shape circle=new Circle(5);
+        printArea(circle);
+    }
+}

w5/Vehicle.java

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+package Homework;
+
+abstract class Vehicle {
+    public abstract void run();
+}
+class Car extends Vehicle{
+    @Override
+    public void run(){
+        System.out.println("car is running");
+    }
+}
+class Bike extends Vehicle{
+    @Override
+    public void run(){
+        System.out.println("bike is running");
+    }
+}
+class Truck extends Vehicle{
+    @Override
+    public void run(){
+        System.out.println("truck is running");
+    }
+}
+class VehicleTest{
+    public static void main(String[]args){
+        Vehicle[] vehicles=new Vehicle[3];
+        vehicles[0]=new Car();
+        vehicles[1]=new Bike();
+        vehicles[2]=new Truck();
+        for(Vehicle i :vehicles){
+            i.run();
+        }
+    }
+}

w5/shape.java

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+package Homework;
+
+public abstract class shape {
+    public abstract void draw();
+}
+class Circle extends shape{
+    @Override
+    public void draw(){
+        System.out.println("绘制一个圆形");
+    }
+
+}
+class Rectangle extends shape{
+    @Override
+    public void draw(){
+        System.out.println("绘制一个矩形");
+    }
+}
+class Main{
+    public static void drawShape(shape s){
+        s.draw();
+    }
+    public static void main(String[]args){
+        drawShape(new Circle());
+        drawShape(new Rectangle());
+    }
+}