scg/ch06/StringValues

01 packagepackage is used to name the directory or folder a class is in scg.ch06;
02 
03 importimport means to make the classes and/or packages available in this program fang2.core.Game;
04 importimport means to make the classes and/or packages available in this program fang2.sprites.StringSprite;
05 
06 /**
07  * Demonstrates String functions and String literals.
08  */
09 publicpublic is used to indicate unrestricted access (any other class can have access) classclass is a group of fields and methods used for making objects StringValues
10   extendsextends means to customize or extend the functionality of a class Game {open braces start code blocks and must be matched with a close brace
11   /**
12    * Creates local Strings and then demonstrates some String methods in
13    * various labels created on the screen.
14    */
15   @Override
16   publicpublic is used to indicate unrestricted access (any other class can have access) voidvoid means the method does not return a value setup() {open braces start code blocks and must be matched with a close brace
17     finalfinal means not changeable (often used for constants) doubledouble is the type for numbers that can contain decimal fractions STRING_HEIGHT =this assignment operator makes the left side equal to the right side 0.04;// a named constant. Used to step
18                                       // strings down screen
19     doubledouble is the type for numbers that can contain decimal fractions yPosition =this assignment operator makes the left side equal to the right side STRING_HEIGHT;// represents the y position of
20                                      // the next string sprite
21     String userFirstName =this assignment operator makes the left side equal to the right side "Claes";
22     String userLastName =this assignment operator makes the left side equal to the right side "Bos-Ladd";
23     // concatenation
24     String userFullName =this assignment operator makes the left side equal to the right side userFirstName +adds two numbers together or concatenates Strings together " " +adds two numbers together or concatenates Strings together userLastName;
25 
26     // Constructor takes a string and then the scale.
27     StringSprite msg1 =this assignment operator makes the left side equal to the right side newnew is used to create objects by calling the constructor StringSprite("userFirstName = " +adds two numbers together or concatenates Strings together
28         userFirstName);
29     msg1.setLineHeight(STRING_HEIGHT);
30     msg1.setLocation(0.5, yPosition);
31     yPosition =this assignment operator makes the left side equal to the right side yPosition +adds two numbers together or concatenates Strings together STRING_HEIGHT;
32     addSprite(msg1);
33 
34     StringSprite msg2 =this assignment operator makes the left side equal to the right side newnew is used to create objects by calling the constructor StringSprite("userLastName = " +adds two numbers together or concatenates Strings together
35         userLastName);
36     msg2.setLineHeight(STRING_HEIGHT);
37     msg2.setLocation(0.5, yPosition);
38     yPosition =this assignment operator makes the left side equal to the right side yPosition +adds two numbers together or concatenates Strings together STRING_HEIGHT;
39     addSprite(msg2);
40 
41     StringSprite msg3 =this assignment operator makes the left side equal to the right side newnew is used to create objects by calling the constructor StringSprite("userFullName = " +adds two numbers together or concatenates Strings together
42         userFullName);
43     msg3.setLineHeight(STRING_HEIGHT);
44     msg3.setLocation(0.5, yPosition);
45     yPosition =this assignment operator makes the left side equal to the right side yPosition +adds two numbers together or concatenates Strings together STRING_HEIGHT;
46     addSprite(msg3);
47 
48     StringSprite msg4 =this assignment operator makes the left side equal to the right side newnew is used to create objects by calling the constructor StringSprite(
49         "userFullName.toLowerCase() = " +adds two numbers together or concatenates Strings together userFullName.toLowerCase());
50     msg4.setLineHeight(STRING_HEIGHT);
51     msg4.setLocation(0.5, yPosition);
52     yPosition =this assignment operator makes the left side equal to the right side yPosition +adds two numbers together or concatenates Strings together STRING_HEIGHT;
53     addSprite(msg4);
54 
55     StringSprite msg5 =this assignment operator makes the left side equal to the right side newnew is used to create objects by calling the constructor StringSprite(
56         "userFullName.toUpperCase() = " +adds two numbers together or concatenates Strings together userFullName.toUpperCase());
57     msg5.setLineHeight(STRING_HEIGHT);
58     msg5.setLocation(0.5, yPosition);
59     yPosition =this assignment operator makes the left side equal to the right side yPosition +adds two numbers together or concatenates Strings together STRING_HEIGHT;
60     addSprite(msg5);
61 
62     StringSprite msg6 =this assignment operator makes the left side equal to the right side newnew is used to create objects by calling the constructor StringSprite(
63         "userFullName.substring(6, 9) = " +adds two numbers together or concatenates Strings together
64         userFullName.substring(6, 9));
65     msg6.setLineHeight(STRING_HEIGHT);
66     // "Claes Bos-Ladd" [6-9) = "Bos"
67     //  00000000001111
68     //  01234567890123
69     msg6.setLocation(0.5, yPosition);
70     yPosition =this assignment operator makes the left side equal to the right side yPosition +adds two numbers together or concatenates Strings together STRING_HEIGHT;
71     addSprite(msg6);
72   }close braces end code blocks and must match an earlier open brace
73 }close braces end code blocks and must match an earlier open brace
74 
75 //Uploaded on Mon Mar 29 21:40:15 EDT 2010