User:Jarble/Java user interface

I wrote this Java class, which can can be used to create natural language user interfaces. Also see the JavaScript version of this project.

import java.util.*;
import java.lang.*;
import java.io.*;

class NaturalLanguageUserInterface{
	private String[] thePattern;
	private String[] theString;
	public static void main (String[] args) throws java.lang.Exception{
		final String[] toPrint = {
			"3 plus 4",
			"3 plus 17",
			"sum of 3 and 17",
			"the sum of 3 and 2"
		};
		for(int i = 0; i < toPrint.length; i++){
			System.out.println(toPrint[i] + " = " + output(toPrint[i]));
		}
	}
	
	public String getOutput(String theString){
		this.theString = theString.split(" ");
		if(matchesAPattern("@a plus @b,the sum of @a and @b,sum of @a and @b")){
			return Integer.toString(Integer.parseInt(this.p("@a")) + Integer.parseInt(this.p("@b")));
		}
		
		return "No output!";
	}
	
	public boolean matchesAPattern(String patterns){
		String[] thePatterns = patterns.split(",");
		for(int i = 0; i < thePatterns.length; i++){
			if(matchesPattern(thePatterns[i])){
				return true;
			}
		}
		return false;
	}
	
	public static boolean isParameter(String theString){
		return (theString.charAt(0) == '@');}
	public String[] splitWithSpace(String theString){
		return theString.split(" ");}
	public boolean matchesPattern(String thePattern){
		boolean toReturn = true;
		this.thePattern = thePattern.split(" ");
		if(this.thePattern.length != this.theString.length){
			return false;
		}
		for(int i = 0; i < theString.length; i++){
			if(!isParameter(this.thePattern[i]) && !(this.theString[i].equals(this.thePattern[i]))){
				toReturn = false;}}
		return toReturn;}
	public String p(String theParameter){
		theString = this.theString;
		thePattern = this.thePattern;
		for(int i = 0; i < thePattern.length; i++){
			if(theParameter.equals(thePattern[i])){
				return theString[i];
			}
		}
		return "";
	}
	public static String output(String theString){
		return new NaturalLanguageUserInterface().getOutput(theString);
	}
			
}