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Showing posts with the label Relational operator in C

Operators in C Language | Part-3

Relational OperatorRelational operators are used to perform a logical test or create a condition. List of the logical operator is as given below...Relational opertorMeaning>Greater Than<Less Than>=Greater Than or Equal to<=Less Than or Equal to==Equal to!=Not euqalEvery relational operator returns true or false.In C any non-zero is treated as true and zero is treated as false.In C if any expression evaluated true then system returns 1 otherwise return 0.Relational operator are evaluated from left to right.Example-1 printf("%d",5>2); //print 1 Example-2 printf("%d",5>2>1); //print 0 //first 5>2 evaluated true and returns 1 and then result of this expression is compared with next 1, that is evaluated false. Logical Operator&&(And) ||(Or) !(not) are the 3 logical operators.&&(and), || (or) are used to combine two or more conditions.Each condition can be true or false, so what will be the output of the combination made by logical…
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Overview of Go lang

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Arrays in C Language

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Suppose you want to store the 10 numbers. The one choice is to create a 10 different variable but it is difficult when number of variable are increases. So the next solution that is more feasible is array. An array is the collection of various similar type elements stored in contiguous memory locations. All the array elements share the common name. To uniquely identify each element an index or subscript is associated with the element. so the array is also known as subscript variable. In the given figure arrangement of array elements are shown. The address of the first element is 100. If the given array is of type integer and integer occupies 2 bytes then the next element in the array has address 102,104 etc as given in the figure. How to access array elements using subscript operator it is also shown in the given figure.Array index always start with 0. To access array element subscript operator is used.[] is called subscript operator.a[0] read a of 0 or 0th element of aCreating/Declar…
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Data Types in Go language

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Data type defines a set of related values, describe the operations that can be done on them and define the way the stored in memory.  For example: Suppose you have a Car of VW Polo, but a car can be of any other company with some other basic and some advanced features.
But if we called a name Car, then in your mind a picture is created that there is a vehicle with 4-wheels and steering. Each car has some features like the color, company, make, model etc.

Types in programming work in a similar way, For example, "Hello World" is a string and every string have some length.

Numbers Go Comes with different types to represent numbers, Numbers can be categorized into two broad categories...
Integer The integer represents only those numbers which don't include any decimal places and can be of any positive and negative numbers. Example : {1, 3, -4, 11, 123, 534} all are integer numbers
Go's integer type can be uint8, uint16, uint32, uint64, int8, int16, int32, and int64. 8, 1…
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Creating your first html page

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Say Hello world in Go lang

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Writing your first program "Hello World" package main
import "fmt"
func main( ) {
       fmt.Print("Hello World")
} Understanding the program line by line As we have discussed in the overview of go lang that Go program is organized in the various package. Here first statement package main specifies that this program will belong to the package main.Next line import "fmt" includes the predefined package fmt in your program so that you can use the functions (features) of this package in your program. Here import is the keyword in go lang use to import package(s).fmt stands for the format, fmt package has the various pre-defined function like Print, Println, Printf to print the formatted text and other methods like Scanf for reading the formatted values.Next Line defines the main() function, which is the starting point of every program. func is a keyword in go lang to define a function.Within the main() function we have written fmt.Print("Hello…
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Arrays in Go lang

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What is ArrayAn array is the collection of similar type of elements.An array is the collection of fixed length.Array elements are stored in contiguous memory locations.All the array elements share the common name, but each element is uniquely identified their index or subscript, so the array is also called a subscript variable.Array index always starts with 0. Creating an array var arr [5]int Note: In the above program snippet, arr is an array of 5 integers.By default, all the array elements are initialized with a default value. Default ValuesData TypeDefault ValueInt(s)0Float(s)0.0bool(s)falseObjectsnil
Note: Following example demonstrate the default values for array elements.
Example-1 package main
import "fmt"
func main() {
var arr1 [5]int
var arr2 [5]float32
var arr3 [5]string
var arr4 [5]bool
fmt.Println(arr1)
fmt.Println(arr2)
fmt.Printf(arr3)
fmt.Println(arr4)
} Output  [0 0 0 0 0] [0 0 0 0 0] [    ] [false false false false false] Example-2 package main
import "fmt"
…
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Installing go lang

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On WindowsDownload the latest version of go MSI installer from https://golang.org/dl/ best suited for your system architecture.Start the installation by double-clicking on the installer and installer wizard will open as given in the following figure. For the installation follow the wizard instructions.Note that when you installing go lang using installer then it will ask the location where go will be installed as shown in the figure below. Installation directory of go lang is called GOROOT here the GOROOT is c:\go directory.After this follow the wizard instructions and complete the go lang installation. Test Go installation To Check that Go is installed correctly or not, you need to create a go workspace (a place /folder/directory in which you save you go programs) and create a sample go program and run the program using the command line. The sample program is given below...You can create a sample program by using any simple text editor like notepad, notepad++, sublime or anyone you lik…
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String in golang

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Strings are sequence of characters with definite length and can be created by enclosing in double quotes "Hello Go" and back ticks `Hello Go`. A string is a sequence of characters.Strings are the collection of individual bytes, where each character occupy single byte.Characters out of the ASCII characters (can say characters from other languages) occupy more than one byte.A string can be created by enclosing in double quotes "Hello Go" or backticks `Hello Go`.The difference between double quotes and backticks is that double quotes allow escape sequences like \n (newline) and \t (tab) and parses them but backticks don't. Example-1: package main
import "fmt"
func main( ) {
        fmt.Println(len("Hello Go"))
        fmt.Println("Hello Go"[1])
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} Output: 8101Hello Go 
 Output Explained:

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Decision Making in Go lang

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Introduction to decision making Sometimes we need to introduce a power in our program, that our program should automatically make the decision.

For example:  if the temperature of the day is more than 20 degree then it's hot otherwise it's cool.

To introduce this kind of power in our program, we use decision making statements as the list below...
if-else statementsnested if-else statementselse-if ladderswitch/case-control statement Let's create a program to check whether a number is even or odd. Program to check a number is even or odd in Go lang. package main
import "fmt"
func main() {
var n int32
fmt.Print("Enter any number:")
fmt.Scan(&n)
if n % 2 == 0 {
fmt.Println(n,"is even")
} else {
fmt.Println(n,"is odd")
}
} Output: Enter any number:55
55 is odd  Explanation:A number is even if it is divisible by 2 otherwise odd.So to check a number is even or odd, we need to check divisibility by 2.To perform the divisibility test we use mod (%…
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Decision Making Statements

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