Compilation Failed Usercode Question & Answer Guide (With Explanation)
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What This Question Is About
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This topic involves compilation failed usercode. A strong answer should include explanation, application, and examples.
Original Question
Compilation Failed: ———————————————————————- /usercode/zyLabsUnitTest.java:9: error: constructor HealthProfile in class HealthProfile cannot be applied to given types; HealthProfile hp = new HealthProfile(); ^ required: String,int,double,int found: no arguments reason: actual and formal argument lists differ in length 1 error Health Profile Class: public class HealthProfile { private String name; private int age; private double weight; // in pounds private int height; // in inches // Constructor public HealthProfile(String name, int age, double weight, int height) { this.name = name; this.age = age; this.weight = weight; this.height = height; } // Method to calculate BMI public double calculateBMI() { return (weight / (height * height)) * 703; } // Method to calculate BMI Category public String calculateCategory() { double bmi = calculateBMI(); if (bmi < 18.5) { return "Underweight"; } else if (bmi < 25) { return "Normal"; } else if (bmi < 30) { return "Overweight"; } else { return "Obese"; } } // Method to calculate Maximum Heart Rate public int calculateMaxHR() { return 220 - age; } // Getter and Setter methods public String getName() { return name; } public void setName(String name) { this.name = name; } public int getAge() { return age; } public void setAge(int age) { this.age = age; } public double getWeight() { return weight; } public void setWeight(double weight) { this.weight = weight; } public int getHeight() { return height; } // Method to set height using feet and inches public void setHeight(int feet, int inches) { this.height = feet * 12 + inches; } } Main Class: import java.util.Scanner; public class Main { public static void main(String[] args) { Scanner scanner = new Scanner(System.in); while (true) { System.out.print("Enter name or X to quit: "); String name = scanner.nextLine(); if (name.equalsIgnoreCase("X")) { break; } System.out.print("Enter age: "); int age = scanner.nextInt(); System.out.print("Enter weight: "); double weight = scanner.nextDouble(); System.out.print("Enter height - feet: "); int feet = scanner.nextInt(); System.out.print("Enter height - inches: "); int inches = scanner.nextInt(); scanner.nextLine(); // Consume the leftover newline // Create a HealthProfile object HealthProfile profile = new HealthProfile(name, age, weight, 0); profile.setHeight(feet, inches); // Display the health profile System.out.printf("Health Profile for %s%n", profile.getName()); System.out.printf("BMI: %.1f%n", profile.calculateBMI()); System.out.printf("BMI Category: %s%n", profile.calculateCategory()); System.out.printf("Max heart rate: %d%n", profile.calculateMaxHR()); } scanner.close(); } }
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