4: Strings

import java.util.Scanner;

public class StringExplorer
{
	public static void main(String[] args)
	{
      // Count down with a "T minus 5"
      
      // Declare and instantiate a Scanner
    
      // infinite loop 
      
          // take an input
    
          // repeat input + message
    
          // implement "equals" to stop with the word "stop"
          
      
      /*
      ---------------------------
          SAMPLE STUFF
      ---------------------------
      */
  		String sample = "The quick brown fox jumped over the lazy dog.";
  
      // Print the sample and add a blank line after
      System.out.println("OUR SAMPLE:");
  		
      //  Demonstrate the length method.
  		int l = 9999;
  		System.out.println ("sample.length() = " + l);
  
  		//  Demonstrate the indexOf method.
  		int position = 9999;
  		System.out.println ("sample.indexOf(\"quick\") = " + position);
		
      //  Demonstrate the toLowerCase method.
		  String lowerCase = sample.toLowerCase();
		  System.out.println ("sample.toLowerCase() = " + lowerCase);
		  System.out.println ("After toLowerCase(), sample = " + sample);
				
		  //  toUpperCase


      // lastIndexOf


      // substring
      
      
      // equals

	}
}

import java.util.Scanner;


/**
 * A simple class to run the Magpie class.
 * @author Laurie White
 * @version April 2012
 */
public class MagpieRunner
{
	/**
	 * Create a Magpie, give it user input, and print its replies.
	 */
	public static void main(String[] args)
	{
		Magpie maggie = new Magpie();
		
		System.out.println (maggie.getGreeting());
		Scanner in = new Scanner (System.in);
		String statement = in.nextLine();
		
		while (!statement.equals("Bye"))
		{
			System.out.println (maggie.getResponse(statement));
			statement = in.nextLine();
		}
	}
	
}

/**
 * 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 Laurie White
 * @version April 2012
 */
public class Magpie
{
	/**
	 * Get a default greeting 	
	 * @return a greeting
	 */
	public String getGreeting()
	{
		return "Hello, let's talk.";
	}
	
	/**
	 * Gives a response to a user statement
	 * 
	 * @param statement
	 *            the user statement
	 * @return a response based on the rules given
	 */
	public String getResponse(String statement)
	{
		String response = "";
		if (statement.indexOf("no") >= 0)
		{
			response = "Why so negative?";
		}
		else if (statement.indexOf("mother") >= 0
				|| statement.indexOf("father") >= 0
				|| statement.indexOf("sister") >= 0
				|| statement.indexOf("brother") >= 0)
		{
			response = "Tell me more about your family.";
		}
		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 = 4;
		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.";
		}
		
		return response;
	}
}

public class Drills{
	
	public static void main(String[] args){
	
		// Declare 5 different data types with initial values
		
		// A standard for loop printing a message three times
		
		// A for-each loop traversing a String[array]
		
		// An infinite loop
		
			// a short-circut conditional with four tests
		
				// Break a loop if a conditional passes
		
		// Loop through each char in a String
				
		// Print only the first three letters in “word”
		
		// Print all the odd numbers from 1 - 100
		
		// Create a Scanner and take an input
		
		// Create a Scanner, take a number, and count down from that number to 0
		
	}
	
	// Create a method that returns a comparison (include a JavaDoc comment)
	
}