balloon

Class Balloon

java.lang.Object

balloon.Balloon

public class Balloon
extends java.lang.Object

Models a spherical balloon with a fixed maximum radius. Initially a balloon has radius zero, which can be increased using the blow() method. If the radius ever increases beyond the maximum radius, the balloon will pop. Once it is popped, the blow() method has no effect.

Constructor Summary

Constructors

Constructor and Description
Balloon(int max) Creates a balloon with given maximum radius, but if the given argument is negative the balloon will have maximum radius 0; initially, the balloon is deflated (radius is zero) and is not popped.

Method Summary

Modifier and Type	Method and Description
void	blow(int amount) Increases the radius of the balloon by specified amount, causing it to pop if the radius is increased beyond the maximum radius (this method has no effect if the balloon is already popped, or if the given amount is negative).
void	deflate() Deflates the balloon without popping it (a deflated balloon has radius zero).
int	getRadius() Returns the current radius of this balloon.
boolean	isPopped() Determines whether this balloon is popped.
void	pop() Pops the balloon (a popped balloon has radius zero).

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Balloon

public Balloon(int max)

Creates a balloon with given maximum radius, but if the given argument is negative the balloon will have maximum radius 0; initially, the balloon is deflated (radius is zero) and is not popped.

Parameters:

max - Maximum radius of the balloon

Method Detail

blow

public void blow(int amount)

Increases the radius of the balloon by specified amount, causing it to pop if the radius is increased beyond the maximum radius (this method has no effect if the balloon is already popped, or if the given amount is negative).

Parameters:

amount - Amount by which radius is be increased

getRadius

public int getRadius()

Returns the current radius of this balloon.

Returns:

the radius of the balloon

isPopped

public boolean isPopped()

Determines whether this balloon is popped.

Returns:

true if the balloon is popped, false otherwise

deflate

public void deflate()

Deflates the balloon without popping it (a deflated balloon has radius zero).

pop

public void pop()

Pops the balloon (a popped balloon has radius zero).