Explain drawing rectangles in java, JAVA Programming

Explain Drawing Rectangles in java ?

Drawing rectangles is easy. Begin with a Graphics object g and call its drawRect() method:
public void drawRect(int x, int y, int width, int height)
As the variable names suggest, the first int is the left hand side of the rectangle, the second is the top of the rectangle, the third is the width and the fourth is the height. This is in contrast to a few APIs whereas the four sides of the rectangle are given.
This uses drawRect() to draw a rectangle around the sides of an applet.

import java.applet.*;
import java.awt.*;

public class RectangleApplet extends Applet {

public void paint(Graphics g) {

g.drawRect(0, 0, this.getSize().width - 1, this.getSize().height - 1);


Notice that getSize().width is the width of the applet and getSize().height is its height.

Why was the rectangle drawn only to getSize().height-1 and getSize().width-1?

Remember which the upper left hand corner of the applet starts at (0, 0), not at (1, 1). This means in which a 100 by 200 pixel applet includes the points along with x coordinates among 0 and 99, not between 0 and 100. As same the y coordinates are among 0 and 199 inclusive, not 0 and 200.

There is no separate drawSquare() method. A square is just a rectangle along with equal length sides, so to draw a square call drawRect() and pass the same number for both the height and width arguments.

Posted Date: 5/16/2013 7:29:25 AM | Location : United States

Related Discussions:- Explain drawing rectangles in java, Assignment Help, Ask Question on Explain drawing rectangles in java, Get Answer, Expert's Help, Explain drawing rectangles in java Discussions

Write discussion on Explain drawing rectangles in java
Your posts are moderated
Related Questions
You are to write a program name arrayScaling.java that will randomly generate 5000 integer number raging from 1 - 49 and place them in an array. 1.  The program will scale thi

Create a class to implement the ArrayList collection. The name should be YourFirstNameArrayList; for example if I were creating the class then I would call it WaynesArrayList. Do

Need Simple Desktop Software I am seeking a software that can do the subsequent: 1. Check position for a URL in Google, Yahoo, Bing. 2. Check position for a YouTube video

Develop a Farm Production System Project Description: I want software that will allow me to input/record the each day production of our farm and allow me to view the data bac

What is Testing for Equality in java? Testing for equality is a little trickier. You would expect to test if two numbers are equal through using the = sign. However the = sign

A specialized subclass of ActionForm that permits the creation of form beans with dynamic sets of properties (configured in configuration file), without requiring the developer to

Write a java code to draw Ovals and Circles? Java has techniques to draw outlined and filled ovals. As you'd probably guess these methods are called drawOval() and fillOval() c

what is multithreading in Java? Explain with example.

List the keywords which are used in java 1.1? The list of keywords which are used in java 1.1 are given below: Keyword Purpose boole