Sunday, October 18, 2009

Puzzle 55 – Solution

The solution to last time puzzle was to use an instance initializer. An instance initalizer is a piece of code similar to a static block that gets called whenever an instance is created (the compiler inlines this code at the beginning of each constructor).

package com.twisters;
public class NoConstructor {

boolean isConstructor = false; //No changes permitted to this line
{isConstructor = true;}

/* No Code may be added or changed in main*/
public static void main(String[] args) {
NoConstructor noConstructor
= new NoConstructor();
//Prints true

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