递归构造函数调用 [英] Recursive Constructor Invocation

问题描述

public class LecturerInfo extends StaffInfo {

    private float salary;

    public LecturerInfo()
    {
        this();
        this.Name = null;
        this.Address = null;
        this.salary=(float) 0.0;
    }

    public LecturerInfo(String nama, String alamat, float gaji)
    {
        super(nama, alamat);
        Name = nama;
        Address = alamat;
        salary = gaji;
    }

    @Override
    public void displayInfo()
    {
         System.out.println("Name :" +Name);
         System.out.println("Address :" +Address);
         System.out.println("Salary :" +salary);
    }
}

此代码显示错误：

递归构造函数调用LecturerInfo（）

Recursive constructor invocation LecturerInfo()

因为无参构造函数与具有参数的构造函数冲突。

Is it because of the no-argument constructor having conflicts with the constructor with parameters?

推荐答案

下面的代码是递归的。由于 this（）将不再调用当前类的参数构造函数，意味着 LectureInfo（）。

the code below is recursive. Since this() will call no arg constructor of current class that means LectureInfo() again.

public LecturerInfo()
{
    this(); //this is calling LectureInfo() 
    this.Name = null;
    this.Address = null;
    this.salary=(float) 0.0;
}

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