[Ordweb-pos406] Team One Listservuop/pos407/bryanm/Examples/Classes Classes1.java,NONE,1.1 Classes2.java,NONE,1.1 Classes3.java,NONE,1.1 Classes4.java,NONE,1.1 Classes5.java,NONE,1.1 Classes6.java,NONE,1.1 Classes7.java,NONE,1.1 Classes8.java,NONE,1.1 Classes9.java,NONE,1.1 Vector1.java,NONE,1.1

[<b_...@us...>]

Update of /cvsroot/ordweb/uop/pos407/bryanm/Examples/Classes
In directory sc8-pr-cvs1:/tmp/cvs-serv720

Added Files:
	Classes1.java Classes2.java Classes3.java Classes4.java 
	Classes5.java Classes6.java Classes7.java Classes8.java 
	Classes9.java Vector1.java 
Log Message:
init

--- NEW FILE: Classes1.java ---
//Demonstrates objects and attributes.

import java.io.*;

public class Classes1 {
	public static void main (String[ ] args) throws java.io.IOException
	{
		App a = new App();
		a.start();
		return;
	}
}

class App {
	void start() {
		Dog d = new Dog();
		d.name = "Bonzo";
		d.yearBorn = 1996;
		System.out.println(d.name + " was born in " + d.yearBorn);
		return;
	}
}

class Dog {
	String name;
	int yearBorn;
}

--- NEW FILE: Classes2.java ---
//Demonstrates objects, attributes, and methods.

import java.io.*;
import java.util.Date;

public class Classes2 {
	public static void main (String[ ] args) throws java.io.IOException
	{
		App a = new App();
		a.start();
		return;
	}
}

class App {
	void start() {
		Dog d = new Dog();
		d.name = "Bonzo";
		d.yearBorn = 1996;
		System.out.println(d.name + " is " + d.getAge() + " years old.");
		return;
	}
}

class Dog {
	String name;
	int yearBorn;
	int getAge() {
		return (new Date().getYear() + 1900 - this.yearBorn); 
	}
}

--- NEW FILE: Classes3.java ---
//Demonstrates use of several objects

import java.io.*;
import java.util.Date;

public class Classes3 {
	public static void main (String[ ] args) 
	{
		App a = new App();
		a.start();
		return;
	}
}

class App {
	void start() {
		Dog firstDog = new Dog();
		firstDog.name = "Bonzo";
		firstDog.yearBorn = 1996;
		Dog secondDog = new Dog();
		secondDog.name = "Fido";
		secondDog.yearBorn = 2000;
		System.out.println(firstDog.name + " is " + firstDog.getAge() + " years old.");
		System.out.println(secondDog.name + " is " + secondDog.getAge() + " years old.");
		return;
	}
}

class Dog {
	String name;
	int yearBorn;
	int getAge() {
		return (new Date().getYear() + 1900 - this.yearBorn); 
	}
}

--- NEW FILE: Classes4.java ---
//Demonstrates the use of a constructor

import java.io.*;
import java.util.Date;

public class Classes4 {
	public static void main (String[ ] args) 
	{
		App a = new App();
		a.start();
		return;
	}
}

class App {
	void start() {
		Dog firstDog = new Dog("Bonzo", 1996);
		Dog secondDog = new Dog("Fido", 2000);
		System.out.println(firstDog.name + " is " + firstDog.getAge() + " years old.");
		System.out.println(secondDog.name + " is " + secondDog.getAge() + " years old.");
		return;
	}
}

class Dog {
	String name;
	int yearBorn;
	Dog (String name, int year) {
		this.name = name;
		yearBorn = year;
		return;
	}
	int getAge() {
		return (new Date().getYear() + 1900 - yearBorn); 
	}
}

--- NEW FILE: Classes5.java ---
//Demonstrates the use of 'getter' methods

import java.io.*;
import java.util.Date;

public class Classes5 {
	public static void main (String[ ] args) 
	{
		App a = new App();
		a.start();
		return;
	}
}

class App {
	void start() {
		Dog firstDog = new Dog("Bonzo", 1996);
		Dog secondDog = new Dog("Fido", 2000);
		System.out.println(firstDog.getName() + " is " + firstDog.getAge() + " years old.");
		System.out.println(secondDog.getName() + " is " + secondDog.getAge() + " years old.");
		return;
	}
}

class Dog {
	private String name;
	private int yearBorn;
	Dog (String name, int year) {
		this.name = name;
		yearBorn = year;
		return;
	}
	String getName() {
		return name;
	}
	int getAge() {
		return (new Date().getYear() + 1900 - yearBorn); 
	}
}

--- NEW FILE: Classes6.java ---
//Demonstrates private and encapsulation.

import java.io.*;
import java.util.Date;

public class Classes6 {
	public static void main (String[ ] args) 
	{
		App a = new App();
		a.start();
		return;
	}
}

class App {
	void start() {
		Dog firstDog = new Dog("Bonzo", 1996);
		Dog secondDog = new Dog("Fido", 2003);
		System.out.println(firstDog.getName() + " is " + firstDog.getAge() + " years old.");
		System.out.println(secondDog.getName() + " is " + secondDog.getAge() + " years old.");
		return;
	}
}

class Dog {
	private String name;
	private int yearBorn;
	Dog (String name, int year) {
		this.name = name;
		if (year < 1970 || year > new Date().getYear() + 1900)
			yearBorn = 0;
		else
			yearBorn = year;
		return;
	}
	String getName() {
		return name;
	}
	int getAge() {
		if (yearBorn == 0)
			return -1;
		else
			return (new Date().getYear() + 1900 - yearBorn); 
	}
}

--- NEW FILE: Classes7.java ---
//Demonstrates the use of object references and 'this'

import java.io.*;
import java.util.Date;

public class Classes7 {
	public static void main (String[ ] args) 
	{
		App a = new App();
		a.start();
		return;
	}
}

class App {
	void start() {
		Dog firstDog = new Dog("Bonzo", 1996);
		Dog secondDog = new Dog("Fido", 2001);
		if (firstDog.olderThan(secondDog)) 
			System.out.println("Older dog is " + firstDog.getName());
		else
			System.out.println("Older dog is " + secondDog.getName());
		return;
	}
}

class Dog {
	private String name;
	private int yearBorn;
	Dog (String name, int year) {
		this.name = name;
		if (year < 1970 || year > new Date().getYear() + 1900)
			yearBorn = 0;
		else
			yearBorn = year;
		return;
	}
	String getName() {
		return name;
	}
	int getAge() {
		if (yearBorn == 0)
			return -1;
		else
			return (new Date().getYear() + 1900 - yearBorn); 
	}
	boolean olderThan (Dog a) {
		if (this.getAge() >= a.getAge())
			return true;
		else
			return false;
	}
}

--- NEW FILE: Classes8.java ---
//Demonstrates that object variables are references.

import java.io.*;
import java.util.Date;

public class Classes8 {
	public static void main (String[ ] args) 
	{
		App a = new App();
		a.start();
		return;
	}
}

class App {
	void start() {
		Dog firstDog = new Dog("Bonzo", 1996);
		Dog secondDog = firstDog;
		System.out.println("Second Dog is " + secondDog.getName());
		firstDog.name = "Fido";
		System.out.println("Second Dog is now " + secondDog.getName());
		return;
	}
}

class Dog {
	String name;
	private int yearBorn;
	Dog (String name, int year) {
		this.name = name;
		if (year < 1970 || year > new Date().getYear() + 1900)
			yearBorn = 0;
		else
			yearBorn = year;
		return;
	}
	String getName() {
		return name;
	}
	int getAge() {
		if (yearBorn == 0)
			return -1;
		else
			return (new Date().getYear() + 1900 - yearBorn); 
	}
	boolean olderThan (Dog a) {
		if (this.getAge() >= a.getAge())
			return true;
		else
			return false;
	}
}

--- NEW FILE: Classes9.java ---
//Demonstrates objects referencing other objects.

import java.io.*;
import java.util.Date;

public class Classes9 {
	public static void main (String[ ] args) 
	{
		App a = new App();
		a.start();
	}
}

class App {
	void start() {
		Dog firstDog = new Dog("Bonzo", 1996);
		Dog secondDog = new Dog("Fido", 2001);
		Person one = new Person("Henry", "The Eighth");
		Person two = new Person("Anne", "Boleyn");
		firstDog.owner = one;
		secondDog.owner = two;
		System.out.println("The owner of " + firstDog.getName() + " is " + firstDog.owner.getName());
	}
}

class Dog {
	private String name;
	private int yearBorn;
	Person owner;
	Dog (String name, int year) {
		this.name = name;
		yearBorn = year;
	}
	String getName() {
		return name;
	}
	int getAge() {
		return (new Date().getYear() + 1900 - yearBorn); 
	}
	boolean olderThan (Dog a) {
		if (this.getAge() >= a.getAge())
			return true;
		else
			return false;
	}
}

class Person {
	String firstName;
	String lastName;
	Person(String fName, String lName) {
		firstName = fName;
		lastName = lName;
	}
	String getName() {
		return firstName + " " + lastName;
	}
}

--- NEW FILE: Vector1.java ---
//Demonstrates Vectors

import java.io.*;
import java.util.Date;
import java.util.Vector;

public class Vector1 {
	public static void main (String[ ] args) throws IOException 
	{
		App a = new App();
		a.start();
	}
}

class App {
	void start() throws IOException {
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		Vector dogs = new Vector();
		Dog dog = new Dog();
		dog.readDogData(br);
		dogs.addElement(dog);
		dog = new Dog();
		dog.readDogData(br);
		dogs.addElement(dog);
		int totalAge = 0;
		for (int i = 0; i < dogs.size(); i++){
			dog = (Dog) dogs.elementAt(i);
			System.out.println("Dog " + i + " is " + dog.getName() + " aged " + dog.getAge());
			totalAge += dog.getAge();
		}
		System.out.println("The total number of dogs is " + dogs.size());
		System.out.println("The average age is " + totalAge/dogs.size());
	}
}

class Dog {
	private String name;
	private int yearBorn;
	Person owner;
	Dog () {
	}
	String getName() {
		return name;
	}
	int getAge() {
		return (new Date().getYear() + 1900 - yearBorn); 
	}
	boolean olderThan (Dog a) {
		if (this.getAge() >= a.getAge())
			return true;
		else
			return false;
	}
	void readDogData(BufferedReader br) throws IOException {
		System.out.print("Please enter dog's name: ");
		name = br.readLine();
		System.out.print("Please enter the year born: ");
		try {
			yearBorn = Integer.parseInt(br.readLine());
		} catch (NumberFormatException e) {
			yearBorn = new Date().getYear() + 1900;
		}
	}
}

class Person {
	String firstName;
	String lastName;
	Person(String fName, String lName) {
		firstName = fName;
		lastName = lName;
	}
	String getName() {
		return firstName + " " + lastName;
	}
}