Authors:
Stuart Reges, Marty Stepp
Chapter:
Classes
Exercise:
Exercises
Question:13 | ISBN:9780136091813 | Edition: 2
Question
Write a class called Rectangle that represents a rectangular two-dimensional region. Your Rectangle objects should have the following methods:
public Rectangle(int x, int y, int width, int height)
Constructs a new Rectangle whose top-left corner is specified by the given coordinates and with the given width and height. Throw an IllegalArgumentException on a negative width or height.
public int getHeight()
Returns this Rectangle’s height.
public int getWidth()
Returns this Rectangle’s width.
public int getX()
Returns this Rectangle’s x-coordinate.
public int getY()
Returns this Rectangle’s y-coordinate.
public String toString()
Returns a String representation of this Rectangle, such as "Rectangle[x=1,y=2,width=3,height=4]".
Answer
Program:
public class Rectangle
{
private int x;
private int y;
private int width;
private int height;
public Rectangle(int x, int y, int width, int height)
{
if (width < 0 || height < 0)
throw new IllegalArgumentException("Negative width or height.");
this.x = x;
this.y = y;
this.width = width;
this.height = height;
}
public int getHeight()
{
return height;
}
public int getWidth()
{
return width;
}
public int getX()
{
return x;
}
public int getY()
{
return y;
}
public String toString()
{
return "Rectangle[x=" + x + ",y=" + y + ",width=" + width + ",height=" + height + "]";
}
}