program to demonstrate if statement

void main()
{
    var age = 20;
    
    if(age >= 18){
      print("You are voter.");
    }
}

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program to demonstrate if else statement

 void main()
  {
        int age = 12;
        if(age >= 18){
            print("You are voter.");
        }else{
            print("You are not voter.");
        }
  }

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  program to demonstrate if else if statement

  void main() {
  int noOfMonth = 5;

  // Check the no of month
  if (noOfMonth == 1) {
    print("The month is jan");
  } else if (noOfMonth == 2) {
    print("The month is feb");
  } else if (noOfMonth == 3) {
    print("The month is march");
  } else if (noOfMonth == 4) {
    print("The month is april");
  } else if (noOfMonth == 5) {
    print("The month is may");
  } else if (noOfMonth == 6) {
    print("The month is june");
  } else if (noOfMonth == 7) {
    print("The month is july");
  } else if (noOfMonth == 8) {
    print("The month is aug");
  } else if (noOfMonth == 9) {
    print("The month is sep");
  } else if (noOfMonth == 10) {
    print("The month is oct");
  } else if (noOfMonth == 11) {
    print("The month is nov");
  } else if (noOfMonth == 12) {
    print("The month is dec");
  } else {
    print("Invalid option given.");
  }
}

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program to find maximum of three numbers using if else statement

void main()
{
        int num1 = 1200;
        int num2 = 1000;
        int num3 = 150;

        if(num1 > num2  && num1 > num3){
            print("Num 1 is greater: i.e $num1");
        }
        if(num2 > num1 && num2 > num3){
           print("Num2 is greater: i.e $num2");
        }
        if(num3 > num1 && num3 > num2){
            print("Num3 is greater: i.e $num3");
        }
    }

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program to demonstrate switch case statement

void main() {
  var dayOfWeek = 5;
  switch (dayOfWeek) {
    case 1:
        print("Day is Sunday.");
        break;
    case 2:
        print("Day is Monday.");
      break;
    case 3:
      print("Day is Tuesday.");
      break;
    case 4:
        print("Day is Wednesday.");
      break;
    case 5:
        print("Day is Thursday.");
      break;
    case 6:
        print("Day is Friday.");
      break;
    case 7:
        print("Day is Saturday.");
      break;
    default:
        print("Invalid Weekday.");
      break;
  }
}

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program to demonstrate switch statement on strings

void main() {
 const weather = "cloudy";

  switch (weather) {
    case "sunny":
        print("Its a sunny day. Put sunscreen.");
        break;
    case "snowy":
        print("Get your skis.");
      break;
    case "cloudy":
    case "rainy": 
      print("Please bring umbrella.");
      break;
    default:
        print("Sorry I am not familiar with such weather.");
      break;
  }
}

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program to demonstrate switch statement on enums

// define enum outside main function
enum Weather{ sunny, snowy, cloudy, rainy}
// main method
void main() {
 const weather = Weather.cloudy;
  
  switch (weather) {
    case Weather.sunny:
        print("Its a sunny day. Put sunscreen.");
        break;
    case Weather.snowy:
        print("Get your skis.");
      break;
    case Weather.rainy:
    case Weather.cloudy:
      print("Please bring umbrella.");
      break;
    default:
        print("Sorry I am not familiar with such weather.");
      break;
  }
}

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program to demonstrate ternary operator

void main() {
  int num1 = 10;
  int num2 = 15;
  int max = (num1 > num2) ? num1 : num2;
  print("The greatest number is $max");
}

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