Create a class CartoonPanel and create a constructor that takes an array of Picture objects and displays them from left to right like a cartoon in a newspa- per. You can use the scale method to scale the pictures to ¯t. You can create a new picture to use to display the cartoon on.

Question

What will be an ideal response?

Answer 1

```
/**
* Clas s t h a t shows an ar ray of p i c t u r e s and
* shows them from l e f t to r i g h t in a p i c t u r e
* @author Barb Er icson er icson@cc . gat e ch . edu
*/
public clas s CartoonPanel
{
/** f i e l d t h a t h o l d s the ar ray of p i c t u r e s */
private Pi c tur e [ ] pi c tur eAr ray ;
/** f i e l d t h a t i s the width of the car toon pane l */
private int width = 640;
/** f i e l d t h a t i s the amount to s c a l e each p i c t u r e in x */
private double xScal e ;
/** f i e l d t h a t i s the amount to s c a l e each p i c t u r e in y */
private double yScal e ;
/** f i e l d t h a t i s the amount of space to l e a v e between p i c t u r e s */
private int gap = 5 ;
/**
* Cons t ruc tor t h a t t a k e s an ar ray of p i c t u r e s
* @param pi c tAr ray the ar ray of p i c t u r e s
*/
public CartoonPanel ( Pi c tur e [ ] pi c tAr ray )
f
this . pi c tur eAr ray = pi c tAr ray ;
}
/**
* Method to c a l c u l a t e the h e i g h t and x and y s c a l e
* amounts
*/
public int ca l cula t eHe ightAndSe tSca l e ( )
{
int totalWidth = 0 ;
int maxHeight = 0 ;
int maxWidth = 0 ;
// loop through a l l p i c t u r e s
for ( Pi c tur e cur rPi c t : pi c tur eAr ray )
{
totalWidth = totalWidth + cur rPi c t . getWidth ( ) ;
i f ( cur rPi c t . ge tHe ight ( ) > maxHeight )
maxHeight = cur rPi c t . ge tHe ight ( ) ;
i f ( cur rPi c t . getWidth ( ) > maxWidth)
maxWidth = cur rPi c t . getWidth ( ) ;
}
// add gap to t o t a l width
totalWidth = totalWidth + ( pi c tur eAr ray . l eng th ¡ 1) * gap ;
// c a l c u l a t e the s c a l i n g f a c t o r s and h e i g h t
xScal e = ( ( double ) width ) / totalWidth ;
yScal e = xScal e ;
int he i ght = ( int ) ( yScal e * maxHeight ) ;
return he i ght ;
}
/**
* method to show the car toon pane l
*/
public void show ( )
{
// c a l c u l a t e the h e i g h t and x and y s c a l e amounts
int he i ght = c al cul at eHe i ghtAndSe tSc al e ( ) ;
// c r e a t e a new p i c t u r e of the c o r r e c t width and h e i g h t
Pi c tur e p = new Pi c tur e (width , he i ght ) ;
// s t a r t of cur r p i c t u r e in car toon pane l
int currX = 0 ;
// loop through the p i c t u r e s in the ar ray
for ( Pi c tur e cur rPi c t : pi c tur eAr ray )
{
cur rPi c t = cur rPi c t . s c a l e ( xScale , yScal e ) ;
p . copy ( cur rPi c t , currX , 0 ) ;
currX = currX + cur rPi c t . getWidth ( ) + gap ;
}
// show the p i c t u r e
p . show ( ) ;
}
/**
* Method to t e s t the car toon pane l c l a s s
*/
public s tat ic void main ( St r ing [ ] args )
{
Pi c tur e p = new Pi c tur e ( Fi l eChoos e r . getMediaPath ( " church . jpg " ) ) ;
Pi c tur e p1 = new Pi c tur e ( Fi l eChoos e r . getMediaPath ( "beach . jpg " ) ) ;
Pi c tur e p2 = new Pi c tur e ( Fi l eChoos e r . getMediaPath ( " e i f f e l . jpg " ) ) ;
Pi c tur e [ ] pi c tAr ray = fp , p1 , p2 g ;
CartoonPanel panel = new CartoonPanel ( pi c tAr ray ) ;
pane l . show ( ) ;
}
}
```