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Print Week day program in C | Cpp | Java | php | go

Program Description Program to print weekdays based on the user input, Example: For 0 print Sunday, 1 print Monday and so on. C Program #include<stdio.h> int main() { int day; printf("Enter weekday, say(0-6): "); scanf("%d",&day); switch(day) { case 0: printf("Sunday"); break; case 1: printf("Monday"); break; case 2: printf("Tuesday"); break; case 3: printf("Wednesday"); break; case 4: printf("Thrusday"); break; case 5: printf("Friday"); break; case 6: printf("Saturday"); break; default: printf("Invalid input"); } return 0; } C++ Program #include<iostream&g using namespace std; int main() { int day; cout << "Enter any day, say(0-6): "; cin >> day; switch(day) { case 0: cout << "Sunday"; break; case 1: cout << "Monday"; brea…
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Overview of Go lang

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Go is a Open source programming language that makes it easy to build simple, reliable and efficient software. History of Go lang The Go programming language is initially started in 2007 as an internal Google project.The original designed by Robert Griesemer, Rob Pike and Ken Thomson.November 2009, Go is publicly released under the open source license.Go has an open source model and many developers over the world contribute to it with the original designers.  Overview of Go langGo is often referred to as "Simple" programming language, a language that can be learned in a few hours if you already know another language C / C++.Go language was designed to feel familiar and to stay as simple as possible.Go language is created System programming in mind, even go can be used to create a web application using Google's App Engine. Why Go lang 1) Efficient use of 21st-century computers Computers have evolved, but programming language doesn't have the same pace of evolution. Tod…
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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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HTML page structure As we have already discussed, every HTML page is divided into two section -:Head SectionBody SectionHead sectionThis is a section which is actually not visible to the users on the web page, but it helps the content how to display the content.It is used to write the title, meta, script, style etc.Body SectionThis is a section which is actually visible on the web page. Example-1 <!doctype html> <html>           <head>                       <title>My First Web page</title>           </head>          <body>                      Welcome!!! in the world of web.           </body>   </html> Example Explained: 
 <!doctype html> reprents, which html version you are using. For html-5 doctype is as written. Before html-5 doctype is too complicatd. HTML-5 simplified doctype.Every HTML page starts with <html></html> tag.Because each HTML page have head section and body section, which is represented by <hea…
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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])
        fmt.Println("Hello"+" "+"Go")
} Output: 8101Hello Go 
 Output Explained:

fmt.Println(len("Hello Go")) returns the length of the string "Hell…
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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
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Floating point Data types in Go lang

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As we have discussed, In our previous article Data types in go lang, In Go lang Numbers can be categorized into two broad categories. Integral NumbersFloating point Numbers We have already discussed integral numbers In this article we will discuss all floating point numbers.
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