Comprehensive practice in JAVA development: write a simple Java class yourself

Development principles of simple Java classes:

1. The class name must have practical meaning;

2. The attributes in the class need to be encapsulated privately;

3. To encapsulate properties, you need to write setter and getter methods;

4. Several construction methods can be defined, but one parameterless construction method must be retained;

5. In the class No output operation is allowed and must be output as a return value;

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The code is as follows:

//定义一个员工类，包括：员工编号，姓名，工作，薪水以及补贴
class Emp{
    private int empno;
    private String ename;
    private String job;
    private double sal;
    private double comm;
    public Emp(){}
    public Emp(int no,String name,String j,double s,fouble c){
        setNo(no);
        setName(name);
        setJob(j);
        setSal(s);
        setComm(c);
    }
    public int setNo(int no){
        empno = no;
    }
    public String setName(String name){
        ename = name;
    }
    public String setJob(String j){
        job = j;
    }
    public double setSal(double s){
        sal = s;
    }
    public double setComm(double s){
        comm = s;
    }
    public String getValue(){
        return "编号:"+empno+"姓名:"+ename+"工作:"+job+"薪水:"+sal+"补贴:"+comm;
    }
}
//调用员工类并输出员工基本信息
public class mainDemo{
    public static void main(String args[]){
        Emp emp = new Emp("1","张三","清洁",3000,0);
        System.out.println(emp.getValue());
    }
}

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