Thread: can't solve this assignment

1-An airline company allows travelers to carry a specified weight. The program should calculate the ticket
price according to the added weight in kilogram (the weight should always be less than 70 kilos):
 If the weight is less than 30 kilos the System generates a new facture with 8% discount.
 If the weight is between 30 and 50, the system says “Pass”.
 Otherwise, the program generates the overloaded weight and he should pay $ 20 per kilo.
a) Define a double method called weightPrice that takes two integers as parameter; the weight and the
ticket price then it should returns the new ticket price according to the entered values.
b) Write a test program (main) that asks the user to enter the name, desired weight and the ticket price
of each traveler and displays the ticket price for each one by invoking (calling) the weightPrice
method.
Sample Run:
Enter the name of traveler: Rima
Enter the ticket price and the weight: $1053 52
Dear Rima you are overloaded by 2 kilo your new balance is:
$1093


2-We need to create a problem that states whether the lines are "parallel, perpendicular" the program asks
the user to enter reads the coordinates (x,y) for four points 1, 2, 3 and 4 then finds the slops ():
Hint:
 Two lines are parallel if they have the same slop.
 Two lines are perpendicular if the product of slops equals -1.

Sample Run:
Enter the coordinates (x,y) for point 1: 1 -1
Enter the coordinates (x,y) for point 2: 4 5
Enter the coordinates (x,y) for point 3: 3 2
Enter the coordinates (x,y) for point 4: 5 6

Slop of Line (AB) =2.0
Slop of Line (CD) = 2.0
Lines are parallel

for question 1 I used this method :
public static double weightoverticket (double ticket) {
double weight = 0 ;
double ticket1 = ticket + weight ;
return ticket1;

--- Update ---

this all i did for question 1 :
public static void main(String[] args) {
Scanner input = new Scanner (System.in);
System.out.println("Enter the name of traveler: ");
String = sc.next ;

System.out.println("enter ticket price and the weight: ");
double ticket = input.nextDouble();
double weight = input.nextDouble();

for (weight < 30 ){
double price =
}



}
public static double weightoverticket (double ticket) {
double weight = 0 ;
double ticket1 = ticket + weight ;
return ticket1;
}
}

--- Update ---

for question 2
public static void main(String[] args) {
Scanner input = new Scanner (System.in);
System.out.println(" enter the coordinates (x, y) for point 1:");
int x1 , y1 = input.nextInt();

System.out.println(" enter the coordinates (x, y) for point2 :");
int x2 , y2 = input.nextInt();

System.out.println(" enter the coordinates (x, y) for point 3 ");
int x3, y3 = input.nextInt();

System.out.println(" enter the coordinates (x, y) for point 4 ");
int x4 , y4 = input.nextInt();

double S1 = ((y2 - y1) / (x2 - x1));
double S2 = ((y4 - y3) / (x4 - x3));

System.out.println("slop of line (AB) = " + S1);
System.out.println(" Slop of line (CD) = " + S2);

if(S1 == S2) { System.out.println("lines are perpendicular");
}


else if ((S1 * S2) = -1) ;{
System.out.println("Lines are parallel"); }

else { System.out.println("Lines aren't perpendicular or parallel");


}
}

}

Here are the solutions to both problems:

Problem 1:

```java
import java.util.Scanner;

public class AirlineTicket {
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);

System.out.print("Enter the name of traveler: ");
String name = scanner.nextLine();

System.out.print("Enter the ticket price and the weight: ");
double ticketPrice = scanner.nextDouble();
int weight = scanner.nextInt();

double newPrice = weightPrice(weight, ticketPrice);

System.out.println("Dear " + name + ", your new balance is: $" + newPrice);
}

public static double weightPrice(int weight, double ticketPrice) {
if (weight < 30) {
double discount = 0.08 * ticketPrice;
return ticketPrice - discount;
} else if (weight >= 30 && weight <= 50) {
return ticketPrice;
} else {
double extraWeight = weight - 50;
double extraCost = 20 * extraWeight;
return ticketPrice + extraCost;
}
}
}
```

Problem 2:

```java
import java.util.Scanner;

public class LineChecker {
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);

System.out.println("Enter the coordinates (x,y) for point 1:");
int x1 = scanner.nextInt();
int y1 = scanner.nextInt();

System.out.println("Enter the coordinates (x,y) for point 2:");
int x2 = scanner.nextInt();
int y2 = scanner.nextInt();

System.out.println("Enter the coordinates (x,y) for point 3:");
int x3 = scanner.nextInt();
int y3 = scanner.nextInt();

System.out.println("Enter the coordinates (x,y) for point 4:");
int x4 = scanner.nextInt();
int y4 = scanner.nextInt();

double slopeAB = calculateSlope(x1, y1, x2, y2);
double slopeCD = calculateSlope(x3, y3, x4, y4);

System.out.println("Slope of Line (AB) = " + slopeAB);
System.out.println("Slope of Line (CD) = " + slopeCD);

if (slopeAB == slopeCD) {
System.out.println("Lines are parallel");
} else if (slopeAB * slopeCD == -1) {
System.out.println("Lines are perpendicular");
} else {
System.out.println("Lines are neither parallel nor perpendicular");
}
}

public static double calculateSlope(int x1, int y1, int x2, int y2) {
return (double) (y2 - y1) / (x2 - x1);
}
}
```

These programs should address the problems as described. If you help with Java assignment and any further issues or need more clarification, feel free to ask There are resources online where you can find guidance for programming tasks, such as the one you're facing. You might consider exploring various programming forums or seeking help from online assignment help platforms like ProgrammingHomeworkHelp.com to navigate through your challenges effectively.