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Java

import java.util.Scanner;

Scanner input = new Scanner(System.in);
int number = input.nextInt();
float myFloat = input.nextFloat();
double myDouble = input.nextDouble();
String myString = input.next();

C

int testInteger;
float num1;
double num2;
char chr;

scanf("%d", &testInteger);
scanf("%f", &num1);
scanf("%lf", &num2);
scanf("%c", &chr);

// Taking multiple inputs
scanf("%d%f", &testInteger, &num1);

C++

int age, a, b;
cin >> age;

Extractions on cin can also be chained to request more than one datum in a single statement:

cin >> a >> b;

To get an entire line from cin, there exists a function, called getline, that takes the stream (cin) as first argument, and the string variable as second

#include <string>
using namespace std;

string mystr;
cout << "What's your name? ";
getline (cin, mystr);

C#

// Create a string variable and get user input from the keyboard and store it in the variable
string userName = Console.ReadLine();
int age = Convert.ToInt32(Console.ReadLine());

Java

//It adds new line after the message gets dispalyed.
System.out.println();

//It does not add any new line.
System.out.print();

C

printf("C Programming");

int testInteger = 5;
float number1 = 13.5;
double number2 = 12.4;
char chr = 'a';

printf("Number = %d", testInteger);
printf("number1 = %f\n", number1);
printf("number2 = %lf", number2);
printf("character = %c.", chr);

C++

cout << "Hello";
cout << Hello; // prints the content of variable Hello

C#

// Part 1: write an int with Console.WriteLine.
int valueInt = 4;
Console.WriteLine(valueInt);

// Part 2: write a string with the method.
string valueString = "Your string";
Console.WriteLine(valueString);

// Part 3: write a bool with the method.
bool valueBool = false;
Console.WriteLine(valueBool);

Syntax Difference in Programmings