the ____ method draws what appears to be an empty rectangle. course hero

by Alexandre Waters 5 min read

What do the first two arguments of drawrect represent?

The first two arguments represent the x- and y-coordinates of the upper-left corner of the rectangle. The last two arguments represent the width and height of the rectangle. For example, the following statement draws a short, wide rectangle that begins at position 20, 100, and is 200 pixels wide by 10 pixels tall: drawRect(20, 100, 200, 10);

What is an empty rectangle?

An empty rectangle is single digit method with two truths that form a short single digit chain to eliminate a candidate that sees both ends. One end of the chain is a box set with more than 2 candidates.

What are the four arguments needed to draw a rectangle?

The first four arguments match the four arguments required to draw a rectangle: the x- and y-coordinates of the upper-left corner, the width, and the height. The two additional arguments represent the arc width and height associated with the rounded corners (an arc is a portion of a circle).

What is the function of setLocation()?

When you use setLocation(), the upper-left corner of the component is placed at the specified x- and y-coordinates. In other words, if a window is 100 by 100 pixels, aButton.setLocation(100,100); places the JButton outside the window, where you cannot see the component.

What happens if you call getGraphics() in a frame that is not visible?

If you call getGraphics() in a frame that is not visible, you receive a NullPointerException, and

What is the horizontal position of a window?

The horizontal position number increases from left to right across the screen , and the vertical position number increases from top to bottom.

What is repaint() in Java?

The repaint() method only requests that Java repaint the screen. If a second request to repaint() occurs before Java can carry out the first request, Java executes only the last repaint() method.

What is system triggered painting?

System-triggered painting: operations occur when the system asks a component to render its contents. This happens when the component is first made visible, if it is resized, or if it is damaged. For example, a component becomes damaged when another component that previously covered part of it has been moved, revealing a portion that was not visible.

What is the name of the Graphics constructor?

Notice that when you create the draw object, you are not calling the Graphics constructor directly. (The name of the Graphics constructor is Graphics(), not getGraphics().)

What is the draw method in Java?

This method instantiates a Graphics object named draw. (You can use any legal Java identifier.) The getGraphics() method provides the draw object with Graphics capabilities. Then the draw object can employ Graphics methods such as setFont(), setColor(), and drawString().

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