Getting Set-up to Develop

1
Getting Set-up to Develop

• Java 2
• Version 1.3

2
Agenda

• Step One and Two - Support Website and Mailing
  List
• Download an Editor for Java and Install It
• Enter a Java Program with the Editor
• Download "Thinking In Java" Code Examples and the
  book in HTML and check them out
• Browse the Book and check out the Code Examples
• Download a Java Systems Development Kit and set
  it up
• Compile and Run a Java Program
• Download the Sun Documentation
• Browse the Sun Documentation

3
Steps One and Two

• Go to
• http//www.awoolf.com/javaclass/index.htm
• Click on The First Step, Getting Set-up
• Get on javaclass Mailing List

4
What You Will Need

• A 32 bit Windows Platform
• Windows 95 / 98 / 2000 / NT 4.0
• About 160 MB of Free Disk Space
• An Hour plus the download time for 60MB

5
Java Software Development Kit
JDK
From http//java.sun.com/
6
Your IDE(Integrated Development Enviroment)

• The Big Players
• Forte for Java
• Borland Jbuilder 4
• WebGain VisualCafe
• Oricle Jdeveloper
• Metrowerks CodeWarrior Professional
• Our Basic Choice
• TextPad

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Get and Install TextPad

• Go To
• http//www.textpad.com/
• Download The Free Evaluation Copy
• The last time I checked TextPad cost 27. The
  evaluation copy just asked if you wanted to buy
  every hour or so of use. Pay the 27 and it will
  stop asking.
• Install It

8
TextPad Preferences

• TextPad is a general text editor but you would
  like it to assume that you are typing Java if you
  are entering a new file so it can help you with
  the syntax.
• On the Configure menu select "Preferences"
• In the Preferences dialog select "File"
• Set the default file extension to "java"

9
Enter the Java Program

• // HelloDate.java
• import java.util.
• public class HelloDate
• public static void main(String args)
• System.out.println("Hello, It's ")
• System.out.println(new Date())

From Bruce Eckel's Thinking in Java, 2nd Edition,
Page 119-120
10
Save the Java Program

• Create the directories
• C\tij
• C\tij\my
• and
• C\tij\my\C02
• Save the program in the C\tij\my\C02 directory
  with the file name HelloDate.java
• tij is short for Thinking In Java, where we will
  put stuff Bruce Eckel's book "Thinking In Java"
• my is a directory where you will put your work
• C02 is where we will put your work from Chapter 2
  and the program you just typed is from Chapter 2.

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Get Bruce Eckel's Book and Code Examples

• Go to
• http//www.bruceeckel.com/
• Under the title "Book and Book Support" fine and
  follow the Book Download Links
• Pick One
• You are looking for 6 zip files for Thinking in
  Java, 2nd Edition (only about 1.5MB total)
• Download all 6
• Expand the 2 code files into C\tij
• Expand the 4 book(html) files into C\tij\book

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Check Out the Book

• With your web browser open the file
• C\tij\book\SimpleContents.html
• Bookmark the file
• Browse Chapter 2 Everything is an Object
• Find the class HelloDate in Chapter 2.

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Check Out the Code Examples

• With TextPad open the file
• C\tij\C02\HelloDate.javaThis is the same stuff
  you typed into C\tij\my\C02\HelloDate.javaIf
  later you have problems with your working copy of
  HelloDate.java you can compare it with the
  downloaded version from the book.
• In general leave the downloaded files unchanged.
  Copy things you want to change to the
  C\tij\my\... directory to edit and change.

14
Get and Setup Java 2 SDK

• http//java.sun.com/j2se/1.3/download-windows.html
  
• Download Java 2 SDK, v 1.3.0 Software for Windows
  95 / 98 / 2000 / NT 4.0 (about 30MB to download)
• Run the install program
• Let it install into C\jdk1.3

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Set PATH and CLASSPATH

• Add to PATH string
• C\jdk1.3\bin ... (or something like it)
• This lets Windose find java.exe when you type
  java in a command window
• Set CLASSPATH string to
• .C\jdk1.3\binC\tij (or something like it)
• "." lets Java find your program in the current
  directory
• "C\jdk1.3\bin" lets Java find the Java libraries
• "C\tij" lets Java find Libraries provided with
  Thinking In Java

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Lets Compile and Run HelloDate

• From the Windose Start MenugtPrograms open a
  Command Prompt
• Make the current directory C\tij\my\C02
• Can be done with cd C\tij\my\C02
• Compile the program in HelloDate.java
• Can be done with javac HelloDate.java
• The compiled program will be in HelloDate.class
• Run HelloDate.class
• Can be done with java HelloDate
• When done Close the Command window it will not be
  needed for a while.

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Lets Compile and Run HelloDateAgain

• Open HelloDate.java in TextPad
• Compile the program HelloDate.java
• Do it with Compile Java on the Tools menu (or
  Ctrl1)
• The compiled program will be in HelloDate.class
• Run HelloDate.class
• Do it with Run Java Application on the Tools menu
  (or Ctrl2)
• When done Close the Command window and TextPad it
  will not be needed for a while.

18
Get Sun Documentation

• Go to
• http//java.sun.com/j2se/1.3/docs.html
• Download JavaTM 2 SDK Docs - HTML Format (about
  23MB)
• Unzip it to C
• We want to put it in C\jdk1.3\docs. In the
  internal paths in the zip file will add the
  \jdk1.3\docs

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Exploring Sun Documentation

• Start your browser and open the
  fileC\jdk1.3.0\docs\index.html
• Bookmark the page
• Click on the API Language link
• Click on the Java 2 Platform API Specification
  link
• Use Index to find "Date - class java.util.Date"
• Click on the link Date and read a bit about Date

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Exploring Sun Documentation (Cont.)

• In the upper left browser frame there is a list
  of Packages. Find java.lang and click on it.
• Now the lower left frame in the browser will have
  a list of Interfaces, Classes, Exceptions and
  Errors in the java.lang Package.
• In the lower left frame find the Class "String"
  and click on it.
• Now the large frame on the right will provide
  details about the String Class. Spend some time
  reading the details but don't expect to
  understand much.

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Exploring Sun Documentation (Cont.)

• In the upper left browser frame near the top
  click on All Classes.
• Now the lower left frame in the browser will have
  a list of all the Classes and Interfaces that are
  included with Java. You will be able to build
  additional classes and use those provided to
  build your Java Systems.
• In the lower left frame scroll down the list and
  take a guess at how many classes (and interfaces)
  are provided.
• If you see a class name you can't resist click on
  it and see the description to the right.

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