Blakes 21 Days File Paths Document

• External Links
  • Version (24) | Blakes 21 Days | Book's Website | 21 Days | Download JDK 8 (Oracle) | Download NetBeans 8.0.2 (netbeans) || www.learnjavaonline.org | reserve
  • Chapter 1 & Appendix A | (1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) | (9) | (10) | (11) | (12) | (13) | (14) | (15) | (16) | (17) | (18) | (19) | (20) | (21) | (A) | (B) | (C) | (D) | (E) | reserve | Project Files | Grid | Blank

• Internal Links
  • The Issue: can't save practice files
  • Path Not Known | Instructions Worked | NetBeans's Project Files | First Program | reserve

Path Not Known

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• While in Chapters 2 and 3, I had problems running my programs from this book.
• I believe the issue is in not understanding the file system that NetBeams or Java uses to store my practice files.
• A big clue was looking at image java152.png that displays the path used for storing or retrieving the .java file
  • Created File: NetBeansProjects/Java21/src/com/java21days/TokenTester.java
• Another clue was that maybe the "New Empty Java File" window is assuming that the path in the Created File text field is not yet created
  • It might be finding it, and will not create a duplicate
• The Package name could have something to do with it

The next problem - the Finder window could not access NetBeansProject folder directly

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• I could not even get to the "root" folder from the Finder's window
• Note: I thought there would be a "Link" in that left hand column for my hard drive or my computer name
  • I don't see it in any of the four sections displayed:
    • Favorites
    • Devices
    • Shared
    • Tags
  • yet I see it (Root folder or Computer Name) displayed on the bottom of the screen, where it displays the path of a chosen file
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My next step is to Google: how to see my root folder in OSX Finder

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• Google Search: how to see my root folder in OSX Finder
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I eventually found this "Shortcut"

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• found this thru Google's Search Page

Wow ! The Instructions Worked !

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• Is there a way to have it placed on that left-hand column ?

I was able to Drag and Drop it to the left column !

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• The folders I was interested in were placed under Favorites for blakeprupis and Devices for Macintosh HD
• I also see the path to Spartacus, MarsRobot, and MarsApplication .java files !!
• I don't know if the Whether folder is in the right place ?

Reserve

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Listing 3.1

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• page 069-070
  
  package com.java21days;
  
  import java.util.StringTokenizer;
  
  class TokenTester {
      public static void main(String[] arguments) {
          StringTokenizer st1, st2;
  
          String quote1 = "GOOG 530.80 -9.98";
          st1 = new StringTokenizer(quote1);
          System.out.println("Token 1: " + st1.nextToken() );
          System.out.println("Token 2: " + st1.nextToken() );
          System.out.println("Token 2: " + st1.nextToken() );
  
          String quote2 = "RHT@75.00@0.22";
          st2 = new StringTokenizer(quote2, "@");
          System.out.println("\nToken 1: " + st2.nextToken() );
          System.out.println("Token 2: " + st2.nextToken() );
          System.out.println("Token 3: " + st2.nextToken() );
      }
  }
  
  

Listing 3.1 (screenshot from NetBeans) goes here

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• Earlier I was having issues with NetBeans running a previous program result's in the Output pane. The "New Empty Java File" screen comes from that attempt.

Source & Output

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• I originally has parentheses in the wrong place and a \n in lines 19 & 20 which shouldn't have been there.
• This is the code copied and pasted from the book's source folder.

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• 070 Save this file by choosing File, Save or clicking the Save All button on the NetBeans toolbar.
  • Run the application by choosing Run, Run File to see the output.

Reserve

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