Quotes About Variables

Use locking to control access to global variables. Similar to concurrency control in a multiuser database environment, locking requires that before the value of a global variable can be used or updated, the variable must be checked out. After the variable is used, it's checked back in. During the time it's in use (checked out), if some other part of the program tries to check it out, the lock/unlock routine displays an error message or fires an assertion.

El espacio inconsciente tiene una capacidad mucho mayor que el consciente, ya que puede contener y manejar muchas variables que potencialmente ayudan a la mejor elección en una pequeña ventana de tiempo.

Not everyone forgets to take measures and to do so frequently, but people still fail to create measures that generate the right kind of influence. They do so by measuring the wrong variable.

High among the unpredictable variables that endanger the survival of worthy buildings are the vagaries of taste.

I was drafted by the New Orleans Saints, and quite frankly, I got worn out playing football. I got tired of it. With wrestling, there were so many variables that could go with it, so many directions you could go. Every night, it was different. Every night. It was a different town 7 nights a week and twice on Sunday.

If anything runs deeper than a mathematician's love of variables, it's a scientist's love of constants.

The naturally lonely person does not look for comfort in love, but accepts the variables as due course.

And I think What does it matter that it is not a linear equation if any variable is raised to a power? We're all just going to die anyway.

Human adaptability simply doesn't get accurately captured in econometric models.

overrate it in the sense that they often control for many more variables than they need to and even for variables that they should not

Ends, ways, means, risk. Strategy is like a three-legged stool, with ends, ways, and means balancing a plane of varying degrees of risk. We create strategy based on known variables and face risk depending on how we use our resources and what the enemy does. We have weapons, we have tools, we have floor plans, we have personnel.

NP's initial project was to serialize the standard tonality of the philosophical scale- to treat all of its pitches equally, as parameters or variables, so as to make heard a music other than the classical

Science depends on being able to repeat a finding, again and again, before it's declared true. It's about controlling the variables. And that is simply impossible in a séance room. Results are never replicable, strictly. The experimenter isn't in charge. Even the medium isn't in charge. The spirits decide if and when they'll come through, and what they'll do when they get here.

The problem is that once science has reduced a complex phenomenon to a couple of variables, however important they may be, the natural tendency is to overlook everything else, to assume that what you can measure is all there is, or at least all that really matters. When we mistake what we can know for all there is to know, a healthy appreciation of one's ignorance in the face of a mystery like soil fertility gives way to the hubris that we can treat nature as a machine.

Studies of the interaction between genetic and environmental risks are pinpointing critical parts of our health that derive from environmental variables.

In all experiments one must exercise ingenuity in finding other causes besides the one to be studied which may possibly influence a result, and in eliminating these.

All sorts of factors contribute to what Facebook or Twitter present in a feed, or what Google or Bing show us in search results. Our expectation is that those intermediaries will provide open conduits to others' content and that the variables in their processes just help yield the information we find most relevant.

The more you watch users carefully and listen to them articulate their intentions, motivations, and thought processes, the more you realize that their individual reactions to Web pages are based on so many variables that attempts to describe users in terms of one-dimensional likes and dislikes are futile and counter-productive. Good design, on the other hand, takes this complexity into account.

the road to programming hell is paved with global variables

Chaos doesn't mean that the system is behaving randomly, it means that it is unpredictable because it has many variables, it is too complex to measure, and even if it could be measured, theoretically the measurement cannot be done accurately and the tiniest inaccuracy would change the end result an enormous amount.

Locking can guarantee both visibility and atomicity; volatile variables can only guarantee visibility.

Debugging tip: For server applications, be sure to always specify the -server JVM command line switch when invoking the JVM, even for development and testing. The server JVM performs more optimization than the client JVM, such as hoisting variables out of a loop that are not modified in the loop; code that might appear to work in the development environment (client JVM) can break in the deployment environment (server JVM).

Good uses of volatile variables include ensuring the visibility of their own state, that of the object they refer to, or indicating that an important lifecycle event (such as initialization or shutdown) has occurred.

The java.util.concurrent.atomic package contains atomic variable classes for effecting atomic state transitions on numbers and object references. By replacing the long counter with an AtomicLong, we ensure that all actions that access the counter state are atomic.