ÿþM e h r a n S a h a m i H a n d o u t # 1 5 A
C S 1 0 6 A O c t o b e r 1 0 , 2 0 0 7
S o l u t i o n s f o r S e c t i o n # 2
B a s e d o n a h a n d o u t b y E r i c R o b e r t s
1 . T h e F i b o n a c c i s e q u e n c e
/ *
* F i l e : F i b o n a c c i . j a v a
* - - - - - - - - - - - - - - - - - - - -
* T h i s p r o g r a m l i s t s t h e t e r m s i n t h e F i b o n a c c i s e q u e n c e u p t o
* a c o n s t a n t M A X _ T E R M _ V A L U E , w h i c h i s t h e l a r g e s t F i b o n a c c i t e r m
* t h e p r o g r a m w i l l d i s p l a y .
* /
i m p o r t a c m . p r o g r a m . * ;
p u b l i c c l a s s F i b o n a c c i e x t e n d s C o n s o l e P r o g r a m {
p u b l i c v o i d r u n ( ) {
p r i n t l n ( " T h i s p r o g r a m l i s t s t h e F i b o n a c c i s e q u e n c e . " ) ;
i n t t 1 = 0 ;
i n t t 2 = 1 ;
w h i l e ( t 1 < = M A X _ T E R M _ V A L U E ) {
p r i n t l n ( t 1 ) ;
i n t t 3 = t 1 + t 2 ;
t 1 = t 2 ;
t 2 = t 3 ;
}
}
/ * D e f i n e s t h e l a r g e s t t e r m t o b e d i s p l a y e d * /
p r i v a t e s t a t i c f i n a l i n t M A X _ T E R M _ V A L U E = 1 0 0 0 0 ;
}
2
2 . D r a w i n g a r o b o t f a c e
/ * F i l e : R o b o t F a c e . j a v a * /
/ * T h i s p r o g r a m d r a w s a r o b o t f a c e . * /
i m p o r t a c m . g r a p h i c s . * ;
i m p o r t a c m . p r o g r a m . * ;
i m p o r t j a v a . a w t . * ;
p u b l i c c l a s s R o b o t F a c e e x t e n d s G r a p h i c s P r o g r a m {
/ * P a r a m e t e r s f o r t h e d r a w i n g * /
p r i v a t e s t a t i c f i n a l i n t H E A D _ W I D T H = 1 0 0 ;
p r i v a t e s t a t i c f i n a l i n t H E A D _ H E I G H T = 1 5 0 ;
p r i v a t e s t a t i c f i n a l i n t E Y E _ R A D I U S = 1 0 ;
p r i v a t e s t a t i c f i n a l i n t M O U T H _ W I D T H = 6 0 ;
p r i v a t e s t a t i c f i n a l i n t M O U T H _ H E I G H T = 2 0 ;
p u b l i c v o i d r u n ( ) {
a d d F a c e ( g e t W i d t h ( ) / 2 , g e t H e i g h t ( ) / 2 ) ;
}
/ * A d d s t h e e n t i r e f a c e c e n t e r e d a t ( c x , c y ) * /
p r i v a t e v o i d a d d F a c e ( d o u b l e c x , d o u b l e c y ) {
a d d H e a d ( c x , c y ) ;
a d d E y e ( c x - H E A D _ W I D T H / 4 , c y - H E A D _ H E I G H T / 4 ) ;
a d d E y e ( c x + H E A D _ W I D T H / 4 , c y - H E A D _ H E I G H T / 4 ) ;
a d d M o u t h ( c x , c y + H E A D _ H E I G H T / 4 ) ;
}
/ * A d d s t h e h e a d c e n t e r e d a t ( c x , c y ) * /
p r i v a t e v o i d a d d H e a d ( d o u b l e c x , d o u b l e c y ) {
d o u b l e x = c x - H E A D _ W I D T H / 2 ;
d o u b l e y = c y - H E A D _ H E I G H T / 2 ;
G R e c t h e a d = n e w G R e c t ( x , y , H E A D _ W I D T H , H E A D _ H E I G H T ) ;
h e a d . s e t F i l l e d ( t r u e ) ;
h e a d . s e t F i l l C o l o r ( C o l o r . G R A Y ) ;
a d d ( h e a d ) ;
}
/ * A d d s a n e y e c e n t e r e d a t ( c x , c y ) * /
p r i v a t e v o i d a d d E y e ( d o u b l e c x , d o u b l e c y ) {
d o u b l e x = c x - E Y E _ R A D I U S ;
d o u b l e y = c y - E Y E _ R A D I U S ;
G O v a l e y e = n e w G O v a l ( x , y , 2 * E Y E _ R A D I U S , 2 * E Y E _ R A D I U S ) ;
e y e . s e t F i l l e d ( t r u e ) ;
e y e . s e t C o l o r ( C o l o r . Y E L L O W ) ;
a d d ( e y e ) ;
}
/ * A d d s a m o u t h c e n t e r e d a t ( c x , c y ) * /
p r i v a t e v o i d a d d M o u t h ( d o u b l e c x , d o u b l e c y ) {
d o u b l e x = c x - M O U T H _ W I D T H / 2 ;
d o u b l e y = c y - M O U T H _ H E I G H T / 2 ;
G R e c t m o u t h = n e w G R e c t ( x , y , M O U T H _ W I D T H , M O U T H _ H E I G H T ) ;
m o u t h . s e t F i l l e d ( t r u e ) ;
m o u t h . s e t C o l o r ( C o l o r . W H I T E ) ;
a d d ( m o u t h ) ;
}
}
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