JAVA * 定义私有属性: * String name; * int age; * String gender; * int salary; * Date hiredate;//入职时间 * * 定义构造方法，以及属性get,set方法. * 定义toString方法，格式如: * 张三,25,男,5000,2006-02-15 * * 定义equals方法，要求名字以及年龄相同，则认为内容一致。

以下是您所需的Java代码：

import java.util.Date;

public class Employee {
    private String name;
    private int age;
    private String gender;
    private int salary;
    private Date hireDate;
    
    public Employee(String name, int age, String gender, int salary, Date hireDate) {
        this.name = name;
        this.age = age;
        this.gender = gender;
        this.salary = salary;
        this.hireDate = hireDate;
    }
    
    public String getName() {
        return name;
    }
    
    public void setName(String name) {
        this.name = name;
    }
    
    public int getAge() {
        return age;
    }
    
    public void setAge(int age) {
        this.age = age;
    }
    
    public String getGender() {
        return gender;
    }
    
    public void setGender(String gender) {
        this.gender = gender;
    }
    
    public int getSalary() {
        return salary;
    }
    
    public void setSalary(int salary) {
        this.salary = salary;
    }
    
    public Date getHireDate() {
        return hireDate;
    }
    
    public void setHireDate(Date hireDate) {
        this.hireDate = hireDate;
    }
    
    @Override
    public String toString() {
        return name + "," + age + "," + gender + "," + salary + "," + hireDate;
    }
    
    @Override
    public boolean equals(Object obj) {
        if (this == obj) {
            return true;
        }
        
        if (obj == null || getClass() != obj.getClass()) {
            return false;
        }
        
        Employee employee = (Employee) obj;
        
        return name.equals(employee.name) && age == employee.age;
    }
}

以上代码定义了一个名为Employee的类，私有属性包括name、age、gender、salary和hireDate。构造方法用于初始化这些属性，get和set方法用于获取和设置属性的值。toString方法用于返回对象的字符串表示形式，equals方法用于判断两个Employee对象是否相等（根据name和age判断）。