Once you have written the program you need to type it and instruct the machine to execute it. To type your C program you need another program called Editor. Once the program has been typed it needs to be converted to machine language (0’s and 1’s) before the machine can execute it. To carry out … Read more
we would write our first C program now. Once we have done that we would see in detail the instructions that it made use of. Before we begin with our first C program do remember the following rules that are applicable to all C programs: Each instruction in a C program is written as a … Read more
An entity that may vary during program execution is called a variable. Variable names are names given to locations in memory. These locations can contain integer, real or character constants. In any language, the types of variables that it can support depend on the types of constants that it can handle. This is because a particular type … Read more
What is database? Database is an organized collection of information about an entity having controlled redundancy and serves multiple applications. DBMS (database management system) is an application software that is developed to create and manipulate the data in database. A query language can easily access a data in a database. SQL (Structured Query Language) is … Read more
JavaScript provides full control to handle loops and switch statements. There may be a situation when you need to come out of a loop without reaching at its bottom. There may also be a situation when you want to skip a part of your code block and start the next iteration of the look. To … Read more
The for…in loop is used to loop through an object’s properties. As we have not discussed Objects yet, you may not feel comfortable with this loop. But once you understand how objects behave in JavaScript, you will find this loop very useful. Syntax for (variablename in object){ statement or block to execute } In each … Read more
The ‘for’ loop is the most compact form of looping. It includes the following three important parts − The loop initialization where we initialize our counter to a starting value. The initialization statement is executed before the loop begins. The test statement which will test if a given condition is true or not. If the … Read more
While writing a program, you may encounter a situation where you need to perform an action over and over again. In such situations, you would need to write loop statements to reduce the number of lines. JavaScript supports all the necessary loops to ease down the pressure of programming. The while Loop The most basic … Read more
C constants can be divided into two major categories: Primary Constants: Secondary Constants: At this stage we would restrict our discussion to only Primary Constants, namely, Integer, Real and Character constants. Let us see the details of each of these constants. For constructing these different types of constants certain rules have been laid down. These … Read more
A character denotes any alphabet, digit or special symbol used to represent information. Here is the list of valid character set (Alphabets, Numbers and Symbols) allowed in C. The alphabets, numbers and special symbols when properly combined form constants, variables and keywords. Let us see what are ‘constants’ and ‘variables’ in C. Constant and Variable … Read more