assignment8.js

// Assignment: Conditional statements

// Question 1: Grade Classification
// Write a program that takes a student's grade (as a percentage) and uses a "switch" case statement to classify it into a letter grade (A, B, C, D, F). The grading scale is:

// A: 90% and above

// B: 80% to 89%

// C: 70% to 79%

// D: 60% to 69%

// F: Below 60%

// Display the letter grade to the user.


//     let percentage = 98
//     switch(true){
//         case (percentage>=90):
//             console.log("A")
//                break;
//         case (percentage>=80):
//             console.log("B")
//                break;  
//         case (percentage>=70):
//             console.log("C")
//                break;
//         case (percentage>=60):
//             console.log("D")
//                break;
//         default:
//             console.log("F")        
//    }
    



// Question 2: Traffic Light Control
// Create a program that simulates a traffic light system. The user inputs a color code (R for Red, Y for Yellow, G for Green), and the program uses a "switch" case statement to output the appropriate action:

// Red: "Stop"

// Yellow: "Get Ready"

// Green: "Go"

// For any other input, display "Invalid color code."

  

    //  let colour = "Y"
    //    switch (true){
    //     case (colour == "R"):
    //         console.log("Stop")
    //         break;
    //     case (colour=="Y"):
    //         console.log("Get Ready")
    //         break;
    //     case (colour=="G"):
    //         console.log("Go")
    //         break;
    //       default:
    //         console.log("Invalid color code")
    //    }



// Question 3: Age Group Classification
// Create a program that classifies a person's age into different life stages. Ask the user to input their age and use if, else if, and else statements to classify and display:

// "Child" for ages 0 to 12

// "Teenager" for ages 13 to 19

// "Adult" for ages 20 to 64

// "Senior" for ages 65 and above

// Display "Invalid age" for any negative age values.


    // function age(a){
    //      if (a>=0){
    //         if(a<=12){
    //             return "Child"
    //         }
    //         if(a<=19){
    //             return "Teenager"
    //         }
    //         if(a<=64){
    //             return "Adult"
    //         }
    //      }
    //      else if(a>=65){
    //         return "Senior"
    //      }
    //      else{
    //         return "Invalid age"
    //      }
    // }
    //   let classify=age(68)
    //    console.log(classify)




// Question 4: Shipping Calculator
// Create a program that calculates shipping costs based on the shipping method selected. The user inputs a method code (S for Standard, E for Express, O for Overnight), and the program uses a "switch" case statement to display the cost:

// Standard: Rs.5

// Express: Rs.10

// Overnight: Rs.20

// For any other input, display "Invalid shipping method."



//    let code="S"
//      switch(true){
//         case (code=="S"):
//            console.log("Rs.5")
//               break;
//         case (code=="E"):
//             console.log("Rs.10")
//               break;
//         case (code=="O"):
//             console.log("Rs.20")
//               break;
//         default:
//             console.log("Invalid shipping method")
//      }
    


// Question 5: Subscription Plans
// Write a program that determines the monthly cost of a subscription plan based on the user's choice. The options are:

// 1. Basic Rs.9.99 per month

// 2. Standard Rs.14.99 per month

// 3. Premium Rs.19.99 per month

// The user inputs a number corresponding to their choice, and the "switch" case statement displays the monthly cost. If the number is not between 1 and 3, display "Invalid plan."


// let plan="Base"
//   switch(true){
//     case (plan=="Base"):
//         console.log("Rs.9.99 per month")
//            break;
//     case (plan=="Standard"):
//         console.log("Rs.14.99 per month")
//            break;
//     case (plan=="Premium"):
//         console.log("Rs.19.99 per month")
//            break;
//     default:
//         console.log("Invalid plan")
//   }



// let percentage=78
//   switch(true){
//     case(percentage>=90):
//     console.log("A")
//      break;
//     case(percentage>=80):
//     console.log("B")
//     break;
//     case(percentage>=70):
//     console.log("C")
//     break;
//     case(percentage>=60):
//     console.log("D")
//     break;
//     default:
//         console.log("F")
//   }



//  let code="S"
//    switch(true){
//       case (code=="R"):
//         console.log("Stop")
//         break;
//     case(code=="Y"):
//       console.log("Get Ready")
//       break;
//     case(code=="G"):
//      console.log("Go")
//      break;
//      default:
//         console.log("Invalid colour code")
//    }


// function personsAge(a){
//        if(a>=0){
//           if(a<=12){
//             return "Child"
//           }
//           if(a<=19){
//             return "Teenager"
//           }
//           if(a<=64){
//             return "Adult"
//           }
//     else if(a>=65){
//         return "Senior"
//     }
//      else{
//         return "Invalid Age"
//      }}}
//       let age = personsAge(56)
//        console.log(age)






//   let code="E"
//    switch (true){
//       case(code=="S"):
//        console.log("Rs.5")
//        break;
//     case(code=="E"):
//       console.log("Rs.10")
//       break;
//       case(code=="O"):
//        console.log("Rs.20")
//        break;
//     default:
//         console.log("Invalid shipping method")
//    }







// let plan="Standard"
//  switch(true){
//     case(plan=="Basic"):
//       console.log("Rs.9.99 per month")
//       break;
//     case(plan=="Standard"):
//       console.log("Rs.14.99 per month")
//       break;
//     case (plan=="Premium"):
//         console.log("Rs.19.99 per month")
//       break;
//     default:
//         console.log("Invalid plan")
//  }