Fixing the "State" ONE SIMPLE APPROACH IS TO ALWAYS MAKE SURE THE IMAGE IS IN A PREDICTABLE STATE BY REDRAWING IT: public void mouseMove(int x,int y) { pen.drawImage(mapImage); if (y > 65) { pen.invertRect(0,65,220,65); } if (y <= 65) { pen.invertRect(0,0,220,65); } } THIS VERSION REDRAWS THE IMAGE MUCH MORE FREQUENTLY THAN NECESSARY.

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This page is part of a section of lecture slides related to " Conditional Instructions in Java " within the topic "Conditionas and Choices in Java". Other slides within this section and other sections of slides for the topic "Conditionas and Choices in Java" can be accessed using the links below. Conditional Instructions in Java A Responsive Image Map Conditional Execution THE "if" STATEMENT Simplifying the Geometry A Simple Conditional Statement Relational Operators MORE COMPLEX CONDITIONS Accounting for the "State" Fixing the "State" Remembering the "State" Conditionals as Choices The "else" Clause Java "Choice" Components "Choice" Components Credits Determining a Choice's Setting Handling "Choice" Events A Bit More History Name that "State" Remembering the Coordinates Updating the Coordinate Variables Resetting the Sliders