public class Square {

	private int side;

	public Square(int aSide) {
		this.side = aSide;
	}

	public void setSide(int aSide) {
		this.side = aSide;
	}

	public int computeArea() {
		int ss;
		int area;
		ss = this.side;
		area = ss * ss;
		return area;
	}

	public String toString() {
		return "Square side=" + this.side
			+ " area=" + this.computeArea();
	}

}

//Start Person
public class Person {

	private String firstName;
	private String lastName;

	public Person(String aFirstName, String aLastName) {
		this.firstName = aFirstName;
		this.lastName = aLastName;
	}

	public void setNames(String aFirstName, String aLastName) {
		this.firstName = aFirstName;
		this.lastName = aFirstName;
	}

	public String getFullName() {
		String fullName;
		fullName = this.firstName + " " + lastName;
		return fullName;
	}

	public String toString() {
		return "Person: " + this.getFullName();
	}

}

public class Planet {

	private String name;
	private int radius;		//miles

	public Planet(String aName, int aRadius) {
		this.name = aName;
		this.radius = aRadius;
	}

	public void setName(String aName) {
		this.name = aName;
	}

	public void setRadius(int aRadius) {
		this.radius = aRadius;
	}

	public int computeCircumference() {
		//Compute distance around the planet
		//Note: Hardcoding PI (3.1416) to simplify example
		double result;
		int rounded;
		//2 * PI * r
		result = 2 * 3.1416 * this.radius;
		//convert to int by calling another method
		rounded = round(result);
		return rounded;
	}

	public int round(double num) {
		//round num to integer
		//e.g. 5.1 -> 5
		//e.g. 5.7 -> 6
		return (int)Math.round(num);
	}

	public String toString() {
		String units = " miles";
		int r, c;
		String rString, cString, fullString;
		r = this.radius;
		c = this.computeCircumference();
		rString = " -- radius = " + r + units;
		cString = " -- circumference = " + c + units;
		fullString = "Planet" + rString + cString;
		return fullString;
	}

}