QUESTION IMAGE
Question
question
goal: learn how to work with variables and standard input/output.
assignment: as a nutritionist programming an app for tracking daily calorie intake, you need to write a complete program that:
- prompts the user to enter the daily calorie intake with the message: \enter your daily calorie intake in kcal:\;
- displays on screen the following message (where x stands from the value entered by the user):
today your calorie intake was x kcal.
your programs main class should be named calorieintake. use a double variable to store the daily calorie intake.
1 // write your code below
2
3
To solve this problem, we need to create a Java program that interacts with the user to get their daily calorie intake and then display the entered value in a specific format. Here's the step-by-step breakdown:
Step 1: Import necessary package
We need to import the java.util.Scanner package to read user input from the console.
import java.util.Scanner;
Step 2: Define the main class
The main class should be named CalorieIntake as specified in the problem.
public class CalorieIntake {
Step 3: Define the main method
The main method is the entry point of the Java program.
public static void main(String[] args) {
Step 4: Create a Scanner object
This object will be used to read user input from the console.
Scanner scanner = new Scanner(System.in);
Step 5: Prompt the user for input
Print the message asking the user to enter their daily calorie intake.
System.out.print("Enter your daily calorie intake in kcal: ");
Step 6: Read the user input
Read the input as a double since the calorie intake can be a decimal number.
double calorieIntake = scanner.nextDouble();
Step 7: Display the output
Print the message with the user's entered calorie intake.
System.out.println("Today your calorie intake was " + calorieIntake + " kcal.");
Step 8: Close the Scanner (optional but good practice)
Close the scanner to release associated resources.
scanner.close();
}
}
Putting it all together, the complete Java program is:
import java.util.Scanner;
public class CalorieIntake {
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
System.out.print("Enter your daily calorie intake in kcal: ");
double calorieIntake = scanner.nextDouble();
System.out.println("Today your calorie intake was " + calorieIntake + " kcal.");
scanner.close();
}
}
When you run this program, it will prompt the user to enter their daily calorie intake, read the input, and then display the entered value in the specified format. For example, if the user enters 2500, the output will be:
Today your calorie intake was 2500.0 kcal.
(Note: The decimal point and zero are shown because we used a double variable. If you want to format the output to remove unnecessary decimals, you can use System.out.printf or DecimalFormat.)
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To solve this problem, we need to create a Java program that interacts with the user to get their daily calorie intake and then display the entered value in a specific format. Here's the step-by-step breakdown:
Step 1: Import necessary package
We need to import the java.util.Scanner package to read user input from the console.
import java.util.Scanner;
Step 2: Define the main class
The main class should be named CalorieIntake as specified in the problem.
public class CalorieIntake {
Step 3: Define the main method
The main method is the entry point of the Java program.
public static void main(String[] args) {
Step 4: Create a Scanner object
This object will be used to read user input from the console.
Scanner scanner = new Scanner(System.in);
Step 5: Prompt the user for input
Print the message asking the user to enter their daily calorie intake.
System.out.print("Enter your daily calorie intake in kcal: ");
Step 6: Read the user input
Read the input as a double since the calorie intake can be a decimal number.
double calorieIntake = scanner.nextDouble();
Step 7: Display the output
Print the message with the user's entered calorie intake.
System.out.println("Today your calorie intake was " + calorieIntake + " kcal.");
Step 8: Close the Scanner (optional but good practice)
Close the scanner to release associated resources.
scanner.close();
}
}
Putting it all together, the complete Java program is:
import java.util.Scanner;
public class CalorieIntake {
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
System.out.print("Enter your daily calorie intake in kcal: ");
double calorieIntake = scanner.nextDouble();
System.out.println("Today your calorie intake was " + calorieIntake + " kcal.");
scanner.close();
}
}
When you run this program, it will prompt the user to enter their daily calorie intake, read the input, and then display the entered value in the specified format. For example, if the user enters 2500, the output will be:
Today your calorie intake was 2500.0 kcal.
(Note: The decimal point and zero are shown because we used a double variable. If you want to format the output to remove unnecessary decimals, you can use System.out.printf or DecimalFormat.)