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Assert and private constructor

Linus Nikander

Joined: May 21, 2004
Posts: 9
In a recent mock-exam that i attempted the following assertion was made:

String y = "test ";
String x;

assert(x > 1) : x = y + 1;

is this valid because x resolves to test 1 (i.e a value) ?

and will the following assertion be valid

String test = null;

assert (x > 1) : test;

Another question tested the functionality of a private constructor:

Given the following:

class Parent{

private Parent(){


class Child extends Parent{


Now if I, in some other context, try to instantiate a Child:

Child myChild = new Child();

I should get an error since the call to super(); won't be allowed, right ?

A followup to this. Is the only way to circumvent the above problem to either make an overloaded (non-private) constructor in Parent and then call that explicitly from the Child() constructor, or to simply remove the private, or are there other ways around this ?
Barry Gaunt
Ranch Hand

Joined: Aug 03, 2002
Posts: 7729
I suggest you go write some code

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subject: Assert and private constructor
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