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Cleaner implementation of the accepted answer: public static int findMax(int[] array) { // TODO: Take appropriate action if the array is empty. int max_value = Integer.MIN_VALUE; for ( …

Telephone switches can figure this out, so there must be some method to the madness. And, in fact, there is: Country codes are arranged in a tree, where you start at the root and descend into a subt …

Because Java was designed around the idea of having a virtual machine, there really isn't a single, correct answer for this question. … As long as the JVM implements something that appears to the Java program as a heap, all is good. …

Constants are things given values that are known before or during compilation. What you've declared is a variable because its value is determined at runtime by invoking a method. The fact that it's …

What you'd need for a problem like this is a sliding window to hold your output. Lines are sequentially passed to your threads to be processed and, at the same time, assigned a same-numbered slot in …

Java doesn't support operator overloading, which means == only applies to primitive types or references. Anything else requires invocation of a method. …

He bought me them because I told him programming was fun and I wanted to learn it. ... What should I tell him? "Dad, your approach to this is making learning to program absolutely no fun. Kno …

You're fighting three things: First is Java's container library. Nothing in its taxonomy gives you a way to determine whether or not the class iterates in a predictable order. There's no IteratesIn …

The difference between C++ and Java is in what the languages consider their smallest unit of linkage. … If you haven't figured it out already, all of this safety comes with a tradeoff: anything you link to a Java program has to be Java. …

Being able to successfully use make or something like it lets you check the "understands how to model the dependencies between parts of a program composed of more than one module" box.

To improve efficiency, I wanted to have one thread pool perform the I/O section and have it pass tasks to another thread pool that performs the CPU section. That way, it's unlikely that all threads …

One of the things that's critical in designing a multithreaded system is figuring out how to split the work up in a way that keeps as many cores as busy as possible. Your proposed design uses two typ …

Physical pinball machines have sensors in them that detect when something outside is trying to exert too much influence the path of the ball by nudging or tilting the machine. (I say too much here be …

Do people prefer having this defined as a member variable for the class or passing it as an argument to each of the methods - and why? If I understand what you're asking: The methods in a clas …