Variable and History (again) THE EFFECT OF PROGRAM INSTRUCTIONS CAN VARY AS THEY ARE EXECUTED REPEATEDLY BECAUSE THEY DEPEND ON THE VALUES OF VARIABLES AND PARAMETERS. int customer; public void mouseDown( ) { customer = customer + 1; pen.clearRect(); pen.drawString("Next Customer = " + customer); } SINCE VARIABLES CAN REMEMBER HISTORY, THEY PROVIDE A WAY TO GIVE COMMANDS THAT APPROXIMATE "DO THE NEXT ONE." YOUR BROWSER DOES NOT SEEM TO KNOW ABOUT APPLETS Applet Source code

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This page is part of a section of lecture slides related to " Animation and Repetition " within the topic "Iteration and Animation in Java". Other slides within this section and other sections of slides for the topic "Iteration and Animation in Java" can be accessed using the links below. Animation and Repetition Animation and Tedium Computer Animation Tedium and Computer Speed Non-Repetitive Repetition Variable and History (again) Animations The "animate" Method Conditionals in Animations Animating Motion Motion Animations and Conditionals Modifying Multiple "Physical" Parameters Modifying Multiple Parameters (cont.) double, double, toil and ... loops Repetition without "animate" Java "Do" Loops Java "Do" Loops (cont.) A Fitting Reprise