Category: implementation

On Linux BASH shell, the ‘nl’ utility is used to print out text file (or string) with line numbers. If you type in nl –help you will have a …

The Linux Shell provides a useful calculator which is bc. It may be short for ‘bash calculator’. The bc takes the following parameters. root@uploadbeta:~# bc --help usage: bc -h …

C/C++ compilers provide two pre-defined ‘constants’ that return the current source file name and the line number of current statement. So it is useful to locate the error when …

The basic concept of OOP (Object Oriented Programming) is not difficult to understand and every Computer Science students should be able to demonstrate the OOP using Java, which is …

The question is: how many bits are required to change if we want to convert a integer to another? The problem is from . This may seem complicated at …