intro/DropIt

01 packagepackage is used to name the directory or folder a class is in intro;
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  * @authorthis is the Javadoc tag for documenting who created the source code 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 DropIt 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   privateprivate is used to restrict access to the current class only Sprite dot;
14 
15   /**sets up the game*/
16   publicpublic is used to indicate unrestricted access (any other class can have access) voidvoid means the method does not return a value setup()
17   {open braces start code blocks and must be matched with a close brace
18     dot=this assignment operator makes the left side equal to the right sidenewnew is used to create objects by calling the constructor OvalSprite(0.1, 0.1);
19     dot.setLocation(0.5, 0.1);
20     addSprite(dot);
21   }close braces end code blocks and must match an earlier open brace
22 
23   /**handle input and game events*/
24   publicpublic is used to indicate unrestricted access (any other class can have access) voidvoid means the method does not return a value advance()
25   {open braces start code blocks and must be matched with a close brace
26     ifif executes the next statement only if the condition in parenthesis evaluates to true(dot.getY()<0.5)
27       dot.translate(0.0, 0.01);
28     elseelse is what happens when the if condition is false
29       dot.translate(0.0, 0.02);
30   }close braces end code blocks and must match an earlier open brace
31 }close braces end code blocks and must match an earlier open brace