用Java 定义并测试一个代表员工的Employee类。员工属性包括“编号”、“姓名”、“基本薪水”、“薪水增长额”；还包括 “计算增长后的工资总额”。

以下是一个可能的Employee类的实现：

public class Employee {
    private int id;
    private String name;
    private double baseSalary;
    private double raiseAmount;

    public Employee(int id, String name, double baseSalary, double raiseAmount) {
        this.id = id;
        this.name = name;
        this.baseSalary = baseSalary;
        this.raiseAmount = raiseAmount;
    }

    public double getTotalSalary() {
        return baseSalary + raiseAmount;
    }

    // Getters and setters for all properties

    public int getId() {
        return id;
    }

    public void setId(int id) {
        this.id = id;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public double getBaseSalary() {
        return baseSalary;
    }

    public void setBaseSalary(double baseSalary) {
        this.baseSalary = baseSalary;
    }

    public double getRaiseAmount() {
        return raiseAmount;
    }

    public void setRaiseAmount(double raiseAmount) {
        this.raiseAmount = raiseAmount;
    }
}

我们可以编写一个简单的测试程序来测试该类的功能：

public class EmployeeTest {
    public static void main(String[] args) {
        Employee john = new Employee(1, "John", 50000, 10000);
        System.out.println("John's total salary is " + john.getTotalSalary());
    }
}

该程序创建一个名为“John”的Employee对象，基本工资为50000，增长额为10000，并计算出他的总工资。输出应为：

John's total salary is 60000.0