// Filename:      JavaPrograms.txt
// Programmer:    anne.dawson@gmail.com
// First created: Sunday 9th June 2007, 8:19 PT 
// Last updated:  Sunday 28th August 2011, 9:14 PT 

// Please Note: lines starting with the two characters // are comments 
// Commnents and are ignored by the Java compiler/interpreter...
// See:
// http://www.annedawson.net/JavaComments.html
// for important comments about comments.

// Any of these example programs can be run by
// directly copying the desired program and pasting 
// the code to a Java editor such as JCreator...
// http://www.annedawson.net/Java_Program_Run.htm

// The first Java program (prog_01_01.java) has only
// one executable line: 
// System.out.println("Hello World!);

// A selection of these example programs are used in the course
// CSCI125: http://www.annedawson.net/Java_Program_Run.htm





/*
**********************************************************************************


"Java - An Introduction to Problem Solving and Programming"
by Walter Savitch
6th Ed
ISBN-13: 9780132162708



"Java - An Introduction to Problem Solving and Programming"
by Walter Savitch and Frank M. Carrano
5th Ed
ISBN:0-13-607225-9




**********************************************************************************
*/








// prog_01_01.java


/**
 * @(#)prog_01_01.java
 *
 * prog_01_01 application
 *
 * @author 
 * @version 1.00 2007/9/9
 */
 
public class prog_01_01 {
    
    public static void main(String[] args) {
    	
    	System.out.println("Hello World!");
    }
}




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//  Start of CSCI102A_LAB2B_VER2_FA08.java
//  Needs no other file


import java.util.Scanner;

public class CSCI102A_LAB2B_VER2_FA08
{
    public static void main(String[] args) 
    {
        Scanner scannerObject = new Scanner(System.in);
        char temperatureScale;
        double temperature;
        double degreesF = 0.0;      
        double degreesC = 0.0;
        
        System.out.println("Enter a temperature value:");
        temperature = scannerObject.nextDouble( );
        System.out.println("The temperature you entered is");
        System.out.println(temperature);
        
        System.out.println("Enter a temperature scale (C or F):");
        String str;
        str = scannerObject.next( );
        temperatureScale = str.charAt(0); // gets the first character of the entered string 
                                          // and assigns it to the char variable
                                          // the Scanner class does NOT have a method to input a single character
        System.out.println("The temperature scale you entered is");
        System.out.println(temperatureScale);
        
        if (temperatureScale == 'C')
        {
            degreesF = 9 * temperature / 5 + 32;
            System.out.println(degreesF + " degrees F");  
        }
        else
        {
            degreesC = 5 * (temperature - 32 ) /9;
            System.out.println(degreesC + " degrees C");  	
        }
                   
    }
}


//  End of CSCI102A_LAB2B_VER2_FA08.java



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//  Start of CSCI102A_LAB3A_VER2_FA08.java
//  Needs no other file


import java.util.Scanner;

public class CSCI102A_LAB3A_VER2_FA08
{
    public static void main(String[] args) 
    {
    	
    	// this program is a copy of:
        // CSCI102A_LAB2B_VER2_FA08.java
        // amended so it repeats at the user's request
        Scanner scannerObject = new Scanner(System.in);
        char answer = 'y'; // new
        char temperatureScale;
        double temperature;
        double degreesF = 0.0;      
        double degreesC = 0.0;
        
        while (answer == 'y') //new
        {
            System.out.println("Enter a temperature value:");
            temperature = scannerObject.nextDouble( );
            System.out.println("The temperature you entered is");
            System.out.println(temperature);
        
            System.out.println("Enter a temperature scale (C or F):");
            String str;
            str = scannerObject.next( );
            temperatureScale = str.charAt(0); // gets the first character of the entered string 
                                              // and assigns it to the char variable
                                              // the Scanner class does NOT have a method to input a single character
            System.out.println("The temperature scale you entered is");
            System.out.println(temperatureScale);
        
            if (temperatureScale == 'C')
            {
                degreesF = 9 * temperature / 5 + 32;
                System.out.println(degreesF + " degrees F");  
            }
            else
            {
                degreesC = 5 * (temperature - 32 ) /9;
                System.out.println(degreesC + " degrees C");  	
            }
            System.out.println("Run again? (y/n):");  // new
            str = scannerObject.next( ); //new
            answer = str.charAt(0); // gets the first character of the entered string 
                                    // and assigns it to the char variable
                                    // the Scanner class does NOT have a method to input a single character
        }                   
    }
}


//  End of CSCI102A_LAB3A_VER2_FA08.java




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//  Start of CSCI102A_LAB3B_VER2_PART1_FA08.java
//  Needs no other files

import java.util.Scanner;

public class CSCI102A_LAB3B_VER2_PART1_FA08
{
    public static void main(String[] args) 
    {
        

        char answer = 'y';  
        int number = 0;
        int total = 0;
        double average = 0.0; 
        int count = 0; 
        String str;    
       
        Scanner scannerObject = new Scanner(System.in);

        
        while (answer == 'y')  
        {
            count = 0;
            number = 0;
            total = 0;
           
            System.out.println("Please enter a list of whole numbers.");
            System.out.println("Press the enter key after entering each number.");
            System.out.println("Signal the end of the list by entering -1:\n\n");
            
            while (number != -1)
            {
                 
                 number = scannerObject.nextInt( );

                 
                 if (number != -1)
                 {
                 	 count++;
                     total = total + number;           
                 } 
            } // end of innermost while statement    	   	
            System.out.println("You entered " + count +  " numbers.");
            System.out.println("Total is: " + total);
            average = (double)total / count; // type casting from int to double - p60 5th Ed
            System.out.println("Average is: " + average );
            
            

            System.out.println("\n\nRun again? (y/n):");   
            str = scannerObject.next( );  
            answer = str.charAt(0); // gets the first character of the entered string 
                                    // and assigns it to the char variable
                                    // the Scanner class does NOT have a method to input a single character
        } // end of outermost while statement
        System.out.println("\n\nThank you for using this program. Goodbye!");
        
    }
}

//  End of CSCI102A_LAB3B_VER2_PART1_FA08.java


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//  Start of CSCI102A_LAB3B_VER2_PART2_FA08.java
//  Needs no other files

import java.util.Scanner;

public class CSCI102A_LAB3B_VER2_PART2_FA08
{
    public static void main(String[] args) 
    {
        

        char answer = 'y';  
        int number = 0;
        int total = 0;
        double average = 0.0; 
        int count = 0;
        int max = 0; // to store the highest integer - assuming it will be larger than zero
        int min = 1000000; // to store the smallest number - assume smaller than a million 
        String str;   

        Scanner scannerObject = new Scanner(System.in);
       
        
        while (answer == 'y')  
        {
            count = 0;
            number = 0;
            total = 0;
            min = 1000000;
            max = 0;
            System.out.println("Please enter a list of whole numbers.");
            System.out.println("Press the enter key after entering each number.");
            System.out.println("Signal the end of the list by entering -1:\n\n");
            
            while (number != -1)
            {
                 
                 number = scannerObject.nextInt( );
                 
                 if (number != -1)
                 {
                 	 count++;
                     total = total + number; 
                     if (number > max)         
                         max = number;
                     if (number < min)         
                         min = number;
                 } 
            } // end of innermost while statement    	   	
            System.out.println("You entered " + count +  " numbers.");
            System.out.println("Total is: " + total);
            average = (double)total / count; // type casting from int to double - p60 5th Ed
            
            System.out.println("The largest number is: " + max );
            System.out.println("The smallest number is: " + min );
            System.out.println("Average is: " + average );
            

            System.out.println("\n\nRun again? (y/n):");  
 
            str = scannerObject.next( );  
            answer = str.charAt(0); // gets the first character of the entered string 
                                    // and assigns it to the char variable
                                    // the Scanner class does NOT have a method to input a single character

        } // end of outermost while statement
        System.out.println("\n\nThank you for using this program. Goodbye!");
        
    }
}

//  End of CSCI102A_LAB3B_VER2_PART2_FA08.java


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