jam/IfInputExamples

01 packagepackage is used to name the directory or folder a class is in jam;
02 
03 importimport means to make the classes and/or packages available in this program fang.*;
04 importimport means to make the classes and/or packages available in this program java.awt.*;
05 importimport means to make the classes and/or packages available in this program java.awt.geom.*;
06 
07 /**
08  * All about my game.
09  * @authornull My Name Here
10  */
11 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 IfInputExamples extendsextends means to customize or extend the functionality of a class Game
12 {open braces start code blocks and must be matched with a close brace
13   /**an oval*/
14   privateprivate is used to restrict access to the current class only Sprite oval;
15   privateprivate is used to restrict access to the current class only Sprite sprite;
16 
17   /**sets up the game*/
18   publicpublic is used to indicate unrestricted access (any other class can have access) voidvoid means the method does not return a value setup()
19   {open braces start code blocks and must be matched with a close brace
20     makeSprites();
21     addSprites();
22   }close braces end code blocks and must match an earlier open brace
23 
24   /**makes the sprites*/
25   privateprivate is used to restrict access to the current class only voidvoid means the method does not return a value makeSprites()
26   {open braces start code blocks and must be matched with a close brace
27     oval=this assignment operator makes the left side equal to the right sidenewnew is used to create objects by calling the constructor OvalSprite(2, 1);
28     oval.setSize(0.75);
29     oval.setLocation(0.5, 0.5);
30   }close braces end code blocks and must match an earlier open brace
31 
32   /**adds the sprites to the screen*/
33   privateprivate is used to restrict access to the current class only voidvoid means the method does not return a value addSprites()
34   {open braces start code blocks and must be matched with a close brace
35     addSprite(oval);
36   }close braces end code blocks and must match an earlier open brace
37 
38   /**handle input and game events*/
39   publicpublic is used to indicate unrestricted access (any other class can have access) voidvoid means the method does not return a value advance()
40   {open braces start code blocks and must be matched with a close brace
41     ifif executes the next statement only if the condition in parenthesis evaluates to true(getClick2D()!=this is the not equals operator which evaluates to true if both sides are differentnullnull is the value used to refer to a non-existant object)
42     {open braces start code blocks and must be matched with a close brace
43       oval.setLocation(getMouse2D());
44       oval.setSize(randomDouble());
45 
46       String contents=this assignment operator makes the left side equal to the right side"("+adds two numbers together or concatenates Strings togethergetMouseX()+adds two numbers together or concatenates Strings together", "+adds two numbers together or concatenates Strings togethergetMouseY()+adds two numbers together or concatenates Strings together")";
47       ifif executes the next statement only if the condition in parenthesis evaluates to true(sprite!=this is the not equals operator which evaluates to true if both sides are differentnullnull is the value used to refer to a non-existant object)
48         removeSprite(sprite);
49       sprite=this assignment operator makes the left side equal to the right sidenewnew is used to create objects by calling the constructor StringSprite(contents);
50       sprite.setLocation(getMouse2D());
51       sprite.setSize(0.25);
52       sprite.setColor(newnew is used to create objects by calling the constructor Color(255, 255, 255, 128));
53       addSprite(sprite);
54     }close braces end code blocks and must match an earlier open brace
55     ifif executes the next statement only if the condition in parenthesis evaluates to true(getKeyPressed()==this is the comparison operator which evaluates to true if both sides are the same'r')
56     {open braces start code blocks and must be matched with a close brace
57       oval.setLocation(getMouse2D());
58       oval.setColor(Palette.getColor("red"));
59     }close braces end code blocks and must match an earlier open brace
60     ifif executes the next statement only if the condition in parenthesis evaluates to true(getKeyPressed()==this is the comparison operator which evaluates to true if both sides are the same'w')
61     {open braces start code blocks and must be matched with a close brace
62       oval.setColor(Palette.getColor("white"));
63     }close braces end code blocks and must match an earlier open brace
64   }close braces end code blocks and must match an earlier open brace
65 }close braces end code blocks and must match an earlier open brace