raushankrjha

main()
        var name="Raushan";
        print(name);

  //concatenate the string
      var firstname="Raushan";
      var lastname="Jha";
     print(firstname+" kumar "+lastname);
}

raushankrjha

main()
{

  //Boolean example

      var value="";
      print(value.isEmpty);

      var number=20;
      print(number>=30);

raushankrjha

main()
{

  //list(array) example

    var citylist=["jaipur","delhi","mumbai","madhubani"];
    print(citylist);
    print(citylist.length);
    print(citylist.removeLast());

raushankrjha

main()
{

//maps examples

    var markdetails={
            //key :value
              "English":"99",
              "Math":"89",
              "Science":"92"

raushankrjha

main()
{
// String to int
        var one = int.parse('1');
       print(one);

    // String to double
        var onePointOne = double.parse('1.1');
        print(onePointOne);

raushankrjha

main()
{
  print("Operators Example");
  var a=13;
  var b=25;
  //perform operations
 
   print(a+b);
   print(a-b);
   print(a*b);

raushankrjha

main()
{

  /*A leap year is exactly divisible by 4 except for century years (years ending with 00). 
  The century year is a leap year only if it is perfectly divisible by 400.*/
  
  var year=2019;
  if(year%4==0)
  {
          if(year%100==0)

raushankrjha

import 'dart:io';
main()
{
  //WA Program to Swap Numbers Using Temporary Variable
  var num1,num2,temp;
  stdout.write("Enter first Number: ");
  num1=int.parse(stdin.readLineSync());
  stdout.write("Enter Second Number: ");
  num2=int.parse(stdin.readLineSync());

raushankrjha

import "dart:io";
main()
{
  var num,factorial=1;
  stdout.write("Enter a number");
  num=int.parse(stdin.readLineSync());

  for(int i=1;i<=num;i++)
  {
    factorial=factorial*i;

raushankrjha

Future<List> senddata() async {
  final response = await http.post("http://raushanjha.in/insertdata.php", body: {
    "name": user.text,
    "email": pass.text,
    "mobile":mobile.text,
  });

  var datauser = json.decode(response.body);