Read the nouns, verbs, and phrases for the SentenceGenerator class from files. Use an ArrayList instead of an array for each of these.

Question

What will be an ideal response?

Answer 1

```
import j a v a . u t i l . ? ;
import j a v a . i o . ? ;
/? ?

? C l a s s t o g e n e r a t e s e n t e n c e s u s i n g l i s t s o f nouns ,
? v e r b s , and p h r a s e s
? @author Barb E r i c s o n
? C o p y r i g h t 2006
?/
public c l a s s S e n t e n c e G e n L i s t
{
// ///////// f i e l d s /////////////
/? ? l i s t o f nouns ?/
private L i s t n o u n L i s t ;
/? ? l i s t o f v e r b s ?/
private L i s t v e r b L i s t ;
/? ? l i s t o f p h r a s e s ?/
private L i s t p h r a s e L i s t ;
/? ? random number g e n e r a t o r ?/
private Random randGen = new Random ( ) ;
// ////////////// methods ///////////////////////////////////
/? ?
? Method t o c r e a t e and r e t u r n a l i s t from t h e p a s s e d f i l e
? @param f i l e N a m e t h e name o f t h e f i l e t o r e a d from
? @return a l i s t o f S t r i n g s r e a d from t h e f i l e
?/
public L i s t c r e a t e L i s t F r o m F i l e ( S t r i n g f i l e N a m e )
{
L i s t r e t u r n L i s t = new A r r a y L i s t ( ) ;
S t r i n g l i n e = null ;
// t r y t o do t h e f o l l o w i n g
try {
// c r e a t e t h e b u f f e r e d r e a d e r
BufferedReader reader =
new B u f f e r e d R e a d e r (new F i l e R e a d e r ( f i l e N a m e ) ) ;
// Loop w h i l e t h e r e i s more d a t a
while ( ( l i n e = r e a d e r . r e a d L i n e ( ) ) != null )
{
// add t h e l i n e t o t h e l i s t
r e t u r n L i s t . add ( l i n e ) ;
}
// c l o s e t h e r e a d e r
reader . close ( ) ;
} catch ( FileNotFoundException ex ) {
SimpleOutput . showError ( ” Couldn ’ t f i n d ” + f i l e N a m e +
” please pick i t . ” ) ;
fileName = FileChooser . pickAFile ( ) ;

return c r e a t e L i s t F r o m F i l e ( f i l e N a m e ) ;
} catch ( E x c e p t i o n ex ) {
SimpleOutput . showError ( ” E r r o r r e a d i n g f i l e ” + f i l e N a m e ) ;
ex . p r i n t S t a c k T r a c e ( ) ;
}
return r e t u r n L i s t ;
}
/? ?
? Method t o
? files
?/
private void
{
nounList =
verbList =
phraseList
}
fill
t h e noun , v e r b , and p h r a s e l i s t s from
f i l l L i s t s ()
c r e a t e L i s t F r o m F i l e ( ” nouns . t x t ” ) ;
createListFromFile ( ” verbs . txt ” ) ;
= createListFromFile (” phrases . txt ” ) ;
/? ?
? Method t o g e n e r a t e a random s e n t e n c e
? @return a random s e n t e n c e
?/
public S t r i n g generateRandomSentence ( )
{
S t r i n g s e n t e n c e = n o u n L i s t . g e t ( randGen . n e x t I n t ( n o u n L i s t . s i z e ( ) ) ) + ” ” +
v e r b L i s t . g e t ( randGen . n e x t I n t ( v e r b L i s t . s i z e ( ) ) ) + ” ” +
p h r a s e L i s t . g e t ( randGen . n e x t I n t ( p h r a s e L i s t . s i z e ( ) ) ) + ” . ” ;
return s e n t e n c e ;
}
/? ?
? Main f o r t e s t i n g
?/
public s t a t i c void main ( S t r i n g [ ] a r g s )
{
S e n t e n c e G e n L i s t sentenceGen = new S e n t e n c e G e n L i s t ( ) ;
sentenceGen . f i l l L i s t s ( ) ;
f o r ( i n t i = 0 ; i < 5 ; i ++)
System . out . p r i n t l n ( sentenceGen . generateRandomSentence ( ) ) ;
}
}
```