chain « Constructor « Java Class Q&A

1. How do JVM's implicit memory barriers behave when chaining constructors?    stackoverflow.com

Referring to my earlier question on incompletely constructed objects, I have a second question. As Jon Skeet pointed out, there's an implicit memory barrier in the end of a ...

2. Constructor Chaining in Java    stackoverflow.com

I hava slight doubt regarding the Output of the Program of Constructor Chaining I showed Below:

class Cube {

    int length;
    int breadth;
    ...

3. chaining constructors in Java without throwing exceptions from the default constructor    stackoverflow.com

I've read this: Can I use throws in constructor? -- which gave me the right idea, and led me to one answer, but was not very explicit. I've also read ...

4. constructor chaining - why?    coderanch.com

Folks, I understand that when a new object is created .. ex: Horse h = new Horse(); // p. 128 & 129 in K&B Java calls the constructors of every superclass in its inheritance tree. (In this example that would be the constructors of both Animal and Object.) My question is ... why? As a programmer, my intent when I create ...

5. Question about constructor chaining...    coderanch.com

I'm studying for the SCJP - but CTOR chaining is confusing me. The following code is from A programmers guide to Java certification (great book): class Light { // instance variables private int noOfWatts; private boolean indicator; private String location; // CTORS Light() { this (0, false); System.out.println ("Returning from default constructor no. 1 in class Light"); } Light (int watt, ...

6. constructor chaining    coderanch.com

Hmm, that's the second time today I've read here that someone thought each class along the chain of inheritence was a separate object. I wonder if it's being taught that way. As Mike said, each instance of any class is a single object. When you instantiate class B that extends class A that extends Object, one single chunk of memory is ...

7. Local chaining of constructors    coderanch.com

8. Constructors chaining from a superclass    coderanch.com

Hi everyone! It's my first ime here so System.out.println("hello world!"). I guess it's not the right topic to talk about my life, but here is the context of my silly question. I want to develop a numerical simulation program for biophysics, which i take as an opportunity to learn Java. One of the feature of this program is to allow to ...

9. Constructor Chaining    coderanch.com

1 public class Faculty extends Employee { 2 public static void main(String[] args) { 3 new Faculty(); 4 } 5 6 public Faculty() { 7 System.out.println("(4) Faculty's no-arg constructor is invoked"); 8 } 9 } 10 11 class Employee extends Person { 12 public Employee() { 13 this("(2) Invoke Employee's overloaded constructor"); 14 System.out.println("(3) Employee's no-arg constructor is invoked"); 15 } ...

10. Constructor chaining    coderanch.com

Just wondering if someone could offer me a little clarification on this. I understand when you create an instance of a class the first statement called in the constructor either implicitly or explicitly is super(). Are you in effect creating instances and initialising each super class until you reach object itself and then it returns? So when you instantiate a certain ...

11. Constructor chaining    coderanch.com

An elementary concept in constructors is that any call to super() or this() must be the first line in the constructor. Obviously, this means you can have only one. The following will not compile. public class foo{ public static void main(String[] args) { bar mybar = new bar(); } } class bar extends foo{ private String name; bar(String s) { name ...

12. Constructor chaining    forums.oracle.com

} } If i explicitly include constructor with super keyword with parameter as shown in below,it is not showing error. class Message extends Point { int z=45; Message(int x,int y,int z) { super(x,y); this.z = z; System.out.println("This is main class constructor"); System.out.println(x); System.out.println(y); System.out.println(z); } public static void main(String args[]) { Message M = new Message(1,2,3);

13. Constructor Chaining    forums.oracle.com

The first line of a constructor must be either a call to a super constructor or a call to another constructor of the same class. If you do not write the call to this or super, the compiler adds a call to the no-argument constructor of the super class: "super();" The only exception is for the Object class which has no ...