Calling constructor from another constructor Problem

[Mohit G Gupta]

self made

public class max{
 String name;
 
 public max() {
 
 }
 public max(int point) {
 
 max();
 }

 public static void main(String... as)
 {
 
 	System.out.println(new max(5).name);
 }
 }

Kathy sierra pg134 last point ch-object orientation
the only way a constructor can be invoked is from within the another constructor

getting error:cannot find symbol max()

HOw this possible??

[Minhaj Mehmood]

You're calling constructor max() without new keyword, change the code at like 9 as:

new max();

[Seetharaman Venkatasamy]

Constructor is a special kind of method. i.e, Constructor is not a method.

    
 public max() {  
    
  }  
  public max(int point) {  
    
  max(); // error 
  }  

to invoke same class constructor use this()/ this used to invoke overloaded constructor . i.e,

    
 public max() {  
    
  }  
  public max(int point) {      
  this();  
  }  

[Prasad Kharkar]

also I want to add some points..

We can call other constuctors by using overloaded verions of this

the first line in the construction should be implicit call to the super constructor or call to overloaded constructor using this

super() and this() cannot be between lines of code in constructor

[Shanky Sohar]

Contructor cannot be called by their name as it already mentioned
best way to call the overloaded constructor is through "this" keyword..

[Mohd Abrar Khan]

"This" is a keyword to refer current object properties and its location

we can use it in two Cases
1) To differentiate method and class Attributes

2) To execute other constructor explicit statements.

for your example it is to execute the no-arg constructor, hope i am correct.

Thanks!
Abrar