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Chatbot part 2
/**
* A program to carry on conversations with a human user.
* This is the initial version that:
* <ul><li>
* Uses indexOf to find strings
* </li><li>
* Handles responding to simple words and phrases
* </li></ul>
* This version uses a nested if to handle default responses.
* @author Jake Landaiche
* @version 10/10/18
*/
public class Magpie2
{
/**
* Get a default greeting
* @return a greeting
*/
public String getGreeting()
{
return "Hello, let's talk.";
}
/**
* Gives a response to a user response
*
* @param statement
* the user statement
* @return a response based on the rules given
*/
public String getResponse(String statement)
{
String response = "";
if(statement.indexOf("i want") >= 0 && statement.indexOf("i want you") < 0){
iWant(statement);
}else if(iThink(statement) == true && statement.indexOf("i want you") < 0){
myQuestion(statement);
}else if(keywordFound(statement, "no") == true){
response = "Why so negative?";
}else if(keywordFound(statement, "Memmo") == true || keywordFound(statement, "memmo") == true){
response = "He sounds like a great teacher.";
}else if (keywordFound(statement, "mother") == true|| keywordFound(statement, "father") == true || keywordFound(statement, "sister") == true || keywordFound(statement, "brother") == true)
{
response = "Tell me more about your family.";
}else if(keywordFound(statement, "cat") == true || keywordFound(statement,
"dog") == true ){
response = "Tell me more about your pets.";
}else if(keywordFound(statement, "bathroom") == true){
response = "Why do you need to tell me this?";
}else if(keywordFound(statement, "fight") == true){
response = "Violence is never the answer.";
}else if(keywordFound(statement, "sad") == true){
response = "Do you have any pets to make you feel better?";
}else{
response = getRandomResponse();
}
return response;
}
/**
* Pick a default response to use if nothing else fits.
* @return a non-committal string
*/
private String getRandomResponse()
{
final int NUMBER_OF_RESPONSES = 6;
double r = Math.random();
int whichResponse = (int)(r * NUMBER_OF_RESPONSES);
String response = "";
if (whichResponse == 0)
{
response = "Interesting, tell me more.";
}
else if (whichResponse == 1)
{
response = "Hmmm.";
}
else if (whichResponse == 2)
{
response = "Do you really think so?";
}
else if (whichResponse == 3)
{
response = "You don't say.";
}else if(whichResponse == 4){
response = "Could you repeat that?";
}else if(whichResponse == 5){
response = "Cool, what else?";
}
return response;
}
public boolean keywordFound(String statement, String keyword){
int spot = statement.indexOf(keyword);
if(spot > 0 && statement.substring(spot - 1, spot).equals (" ") && statement.substring(spot + keyword.length(), spot + keyword.length() + 1).equals(" ")){
return true;
}else if (spot == 0 /* && statement.substring(spot + keyword.length(), spot + keyword.length() + 1).equals(" ") */ || statement.length() == keyword.length()){
return true;
}else{
return false;
}
}
public void iWant(String statement){
String desire = statement.substring(statement.indexOf("i want") + 6);
System.out.println("Would you really be happy if you had" + desire + "?");
}
public boolean iThink(String statement){
if(statement.indexOf("i") >= 0 && statement.indexOf("you") > statement.indexOf("i")){
return true;
}else{
return false;
}
}
public void myQuestion(String statement){
String thought = statement.substring(statement.indexOf("i") + 1, statement.indexOf("you")).trim();
System.out.println("Why do you " + thought + " me?");
}
}
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