Which of the following is a variable declaration statement?
a. int total;
b. #include
c. int main()
d. // first string entered by user
a. int total;
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What will be an ideal response?
Extend the Painter application to enable a user to change the size and color of the circles drawn (Fig. 21.34). This application will use an ArrayList to keep track of the data for all previously drawn circles (as in the Screen Saver application). Each time the paintComponent method is called, draw all previously drawn circles.
a) Copying the template to your working directory. Copy the C:Examples Tutorial21ExercisesAdvancedPainter directory to your C:SimplyJava direc- tory.
b) Opening the template file. Open the PainterJPanel.java file in your text editor.
c) Coding the mouseDragged event handler. Inside the mouseDragged event handler (lines 30–32), add code to call the painterJPanelMouseDragged method with the argument event. You will declare this method in the next step.
d) Declaring the painterJPanelMouseDragged method. After the paintComponent method, add the method header for painterJPanelMouseDragged. This method should be declared private, return void and take a MouseEvent object as its param- eter. Inside the painterJPanelMouseDragged method, add an if…else statement to test if the right mouse button was pressed. If the right mouse button was pressed,
create a new Circle object and assign it to instance variable newCircle. The Circle
constructor should take the diameter of
The Office Clipboard only holds a single item
Indicate whether the statement is true or false
________is a mobile forensics hardware device manufactured by Logicube. It can be used in the field for imaging mobile phones and navigation systems, such as Garmin and TomTom
Fill in the blank(s) with the appropriate word(s).