Question

How do I make this: public class Country {     private String name;     private double area;     private...

How do I make this:

public class Country {

    private String name;

    private double area;

    private int population;

    public Country(String name, double area, int population) {

        this.name = name;

        this.area = area;

        this.population = population;

    }

    public double getPopulationDensity() {

        return population / area;

    }

    public String getName() {

        return name;

    }

    public void setName(String name) {

        this.name = name;

    }

    public double getArea() {

        return area;

    }

    public void setArea(double area) {

        this.area = area;

    }

    public int getPopulation() {

        return population;

    }

    public void setPopulation(int population) {

        this.population = population;

    }

    public static void main(String[] args) {

        Country country = new Country("United States of America", 3797000, 327000000);

        System.out.println("Population density of " + country.getName() + " is " + country.getPopulationDensity() + " per square mile");

    }

}

Into a java file?

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Homework Answers

Answer #1

In order to make this a java file, create a file named "Country.java" in any text editor like Notepad, SUblime text, etc and paste the following content:

public class Country {

private String name;

private double area;

private int population;

public Country(String name, double area, int population) {

this.name = name;

this.area = area;

this.population = population;

}

public double getPopulationDensity() {

return population / area;

}

public String getName() {

return name;

}

public void setName(String name) {

this.name = name;

}

public double getArea() {

return area;

}

public void setArea(double area) {

this.area = area;

}

public int getPopulation() {

return population;

}

public void setPopulation(int population) {

this.population = population;

}

public static void main(String[] args) {

Country country = new Country("United States of America", 3797000, 327000000);

System.out.println("Population density of " + country.getName() + " is " + country.getPopulationDensity() + " per square mile");

}

}

Then go to a terminal and run the following commands:

  • javac Country.java
  • java Country
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