You can't go wrong with zombies: the public loves them. It is necessary to initialize all variables. This will cause a run time error. This probably should re

You can't go wrong with zombies: the public loves them. It is necessary to initialize all variables. This will cause a run time error. This probably should read: 'accessing uninitialized variables causes a runtime error'. It is necessary to check your memory indexes for all data structures, if they are wrong you will have run time errors. What would be a 'memory index'? An index into an array? Yes indeed, an out-of-bounds array index will cause an error sooner or later. If your language doesn't check array bounds, like C, the bugs will be subtle and insidious.