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Write a program on Filling Rectangles ?
The drawRect() method draws an open rectangle, a box if you prefer. If you need to draw a filled rectangle, use the fillRect() method. Or else the syntax is identical. This program draws a filled square in the center of the applet. This needs you to separate the applet width and height from the rectangle width and height. Here's the code:import java.applet.*; import java.awt.*;
public class FillAndCenter extends Applet {
public void paint(Graphics g) {
int appletHeight = this.getSize().height; int appletWidth = this.getSize().width; int rectHeight = appletHeight/3; int rectWidth = appletWidth/3; int rectTop = (appletHeight - rectHeight)/2; int rectLeft = (appletWidth - rectWidth)/2; g.fillRect(rectLeft, rectTop, rectWidth-1, rectHeight-1); }
}
Objectives _ Creating and compiling a simple program _ Designing classes _ Use of recursive algorithms _ Learn basic combinatorics Task: string permutation Writ
Write a program on clearing Rectangles ? It is also potential to clear a rectangle that you've drawn. The syntax is exactly what you'd expect: public abstract void clearRect
Point-To-Point (PTP). This model permits exchanging messages via queues formed for some purposes. A client can send and receive messages from one or various queues. PTP model is ea
Write a JavaScript program to prompt the user for the radius of a sphere and call function sphereVolume to calculate and display the volume of the sphere in the status bar.
What are the different scopes for Java variables? The scope of a Java variable is explained by the context in which the variable is declared. Therefore a java variable can have
Question: (a) (i) Describe the purpose of comments when writing programs in Java. (ii) Name the types of comments available and illustrate with simple examples. (b) (i)
What is linear search? It is the simplest form of search. It searches for the element sequentially starting from first element. This search has a drawback if element is located
Differentiation between an Applet and an Application ?
One or more JMS clients that swap messages.
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