Fuel Efficiency Through Java Code

 In this task, you are being asked to write a given word problem as a program.

Write a program that asks the user to input (using a Scanner object):

•  The number of gallons of fuel in the tank
•  The fuel efficiency in miles per gallon
•  The price of fuel per gallon

Then print the cost per 100 miles and how far the car can go with the gas in the tank.

Code: 

import java.util.Scanner;

public class Lab4Task6{

public static void main(String[] args) {

Scanner Ahsan = new Scanner(System.in);

double noOfGalons, fuelEfficiency, price;

int hundredmile = 100;

System.out.print("Enter the no of Gallons of gas in tank: ");

noOfGalons = Ahsan.nextDouble();

System.out.print("Enter the Fuel Efficiency: ");

fuelEfficiency = Ahsan.nextDouble();

System.out.print("Enter the Price of Fuel per gallon: ");

price = Ahsan.nextDouble();

double CostPerHundredmile = (hundredmile / fuelEfficiency ) * price;

System.out.println("Cost of per 100 mile is: " + CostPerHundredmile);

double distance = noOfGalons * fuelEfficiency;

System.out.println("Total distance cover by car is: " + distance + "miles");

}

} 

OutPut:

Fuel Efficiency Through Java Code

Convert word problem into Java code

 In this task, you are being asked to write a given word problem as a program.

Write a program that prompts the user for a radius and then prints:

•  The area and circumference of a circle with that radius
•  The volume and surface area of a sphere with that radius

HINT: Area = π×radius², Circumference=2×π×radius,

Volume of sphere = (4/3)×π×radius3, Surface area = 4×π×radius2.

NOTE: Use Math class constants and functions in your program.

Code:

import java.util.Scanner;

public class lab4Task5{

public static void main(String[] args) {

Scanner Ahsan = new Scanner(System.in);

double area, CircumFarance, volum, Surfac, radius; 

System.out.print("Enter the Radius: "); 

radius = Ahsan.nextDouble();

area = Math.PI * Math.pow(radius, 2);

CircumFarance = 2 * Math.PI * radius;

volum =(int) (4 / 3) * Math.PI * Math.pow(radius, 3);

Surfac = 4 * Math.PI * Math.pow(radius, 3);

System.out.println("Area of the Circle is:                " + area);

System.out.println("The CircumFarance of the Circle is:   " + CircumFarance);

System.out.println("The Volume of the Circle is:          "+ volum);

System.out.println("The SurfacArea of the Circle is:      " + Surfac);

}

}

OutPut:

Convert word problem into Java code