第6次Java作业+LSYang

【1】

interface ClassName{
    public String getClassName();
    }
    class Company implements ClassName{
        public String getClassName(){
        return "Company";
    }
}
public class Java6151 {
    public static void main(String[] args) {
        ClassName name =new Company();
        System.out.print(name.getClassName());
    }
}

程序运行结果

 

【4】

class Employer{
    private String name;
    private int age;
    private char sex;
    public Employer(){
        
    }
    public Employer(String name,int age,char sex){
        super();
        this.name=name;
        this.age=age;
        this.sex=sex;
    }
    public String toString(){
        return "雇员姓名："+this.name+" 年龄："+this.age+
        " 性别："+this.sex;
    }
}
class Manager extends Employer{
    private String job;
    private double income;
    public Manager(){
        
    }
    public Manager(String name,int age,char sex,String job,double income){
        super(name,age,sex);
        this.job=job;
        this.income=income;
    }
    public String toString(){
        return super.toString()+" 职位："+this.job+" 年薪："+this.income;
    }
}
class Staff extends Employer{
    private String dept;
    private double salary;
    public Staff(){
        
    }
    public Staff(String name,int age,char sex,String dept,double salary){
        super(name,age,sex);
        this.dept=dept;
        this.salary=salary;
    }
    public String toString(){
        return super.toString()+" 部门："+this.dept+" 月薪："+this.salary;
    }
}
public class Java6154 {
    public static void main(String[] args) {
        Employer ea=new Manager("张三",20,'女',"代表",15000.0);
        Employer eb=new Staff("李四",21,'男',"理事",6000.0);
        System.out.println(ea);
        System.out.println(eb);
    }
}

程序运行结果