Unix features a handy command line tool called cal. When typed by its lonesome, cal spits up a text calendar on the terminal window. Or you can follow cal with a month and year value to see a specific month, or just the year value to see a year’s calendar. It’s nifty!
Continue reading
It’s not the first thing you think of when you design output. No, it’s one of those afterthoughts, those numerous, “Hey, I could do this” moments that programmers experience time and again. In this case, the concept is centering a chunk of text.
Continue reading
I can think of three rules for concocting your own string in the C language.
Continue reading
Text stored on a computer consists of various displayable characters and perhaps some control codes, such as a tab (\t) or the newline (\n). The string has a starting point, but determining where and how the string ends differs depending on what is storing or reading the string.
Continue reading
It was a simple contest: Write code that displays the first 100 prime numbers. The person who wrote the fastest code won.
Continue reading
Last week’s Lesson discussed the tab character and how it’s used to line up text in a terminal window. This Lesson shows you how such a calculation is made and coded.
Continue reading
As a programmer, you’re used to seeing values like 1000 or 1234999. Your users aren’t. They prefer to see values presented as 1,000 or 1,234,999.01. Or, in Europe the format may look like this 1.000 or 1.234.999,01.
Continue reading
The tab character, 0x08 or ^I (Control-I), is always the same width, no?
Continue reading
An array is a queue of values, all stored as one compact unit with a handy reference method. As you study arrays, especially when you get into pointers, you discover something interesting about the array’s first element.
Continue reading
Never underestimate the power of the printf() function. It has amazing abilities to format output. And don’t forget about printf()‘s lesser-known cousin, sprintf(). It can do amazing things with strings.
Continue reading