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Question

Hi everybody,
I have this program to write:
�     Conjugate regular French verbs in a specified tense and person.
�     Input:
o     The input to the program is a French sentence where the verb has not been conjugated and the required tense is specified.
o     E.g. Je [parler,present] de vos exploits
o     1. The sentence will be no longer than one clause.
2. The subject of the sentence will be a pronoun
3. The verb and tense required will be between square brackets and divided by a comma with no whitespace: [verb,tense]
4. The person required will have to be deducted from the sentence
5. The verb will be a regular verb in the infinitive
�     Output: The output should be a complete French sentence with the correct conjugated verb in the correct position. E.g. Je parle de vos exploits.
�     Input and output: The user has 2 options for input and output
1.     File: an input filename is given as a command line argument of the program. The program reads sentences from the file (one sentence per line) and writes the output to another file with the same name as the input file plus the extension �.out�
-     Input file: Filename
-     Output file: Filename.out
2.     From the terminal: the user types a sentence which is read in using Input.readString method and the output is printed to the screen.
French issues:
1.     The program should deal with the 3 classes of regular verbs for French
(a)     er-verbs: donner
(b)     re-verbs: vendre
(c)     ir-verbs: finir
You don�t have to worry about irregular verbs or verbs that conjucate funny!
2.     The program is expected to deal only with verbs which take �avoir� as an auxiliary.
3.     Required tenses: Present, pass� compose, imparfait and future.
I've decided to write a sentence class, a class for each verb type i.e. -er, -ir and -re and an application class. The sentence class will get the sentence, tokenize it, get the verb and the tense. The -er, -ir and -re classes will then conjucate the verb and return the finished sentence. I am having problems writing the conjucating part. How would I go about doing it? Any tips are badly needed and would be greatly appreciated!!
Thanks.

Answer 1

Yeah, thanks! This is what I've wrote for the sentence class so far. Does it make sense??
import java.util.*;
public class sentence
private String s;
private String subject;
private String verb;
private String tense;
private String sentence [];
public sentence(String s){
StringTokenizer s1 = new StringTokenizer(s, "[], .");
for(int i=0; i<sentence.length; i++){
while(s1.hasMoreTokens()){
     sentence = s1.nextToken();
public String getSubject(){
subject = sentence[0];
return subject;
public String getVerb(){
verb = sentence[1];
return verb;
public String getTense(){
tense = sentence[2];
return tense;
public StringBuffer getVerbStem(){
StringBuffer stem = new StringBuffer(verb);
for(int i=stem.length() - 1; i<stem.length()-3; i--){
stem.deleteCharAt(i);
return stem;
public String getVerbEnding(){
String ending = verb.substring(verb.length()-1, verb.length()-3);
return ending;
public String getEndSentence(){
String remainder = " ";
for(int i = 3; i<sentence.length; i++){
remainder += sentence[i];
return remainder;