Draw Line in J2me
In this example we are going to show you how to draw a line using J2ME.
Please go through the below given J2ME syntax that includes all the package,
methods and class to draw a line.
Basically in J2ME, Canvas class is used to draw circle or line.. that is the
only reason of using this canvas class in our J2ME program. We have also created
a MIDlet called DrawLine in our application as we can't draw a line without
creating it.
g.drawLine(x, y, x+w, y);
g.drawLine(x+w, y, x+w, y+h);
g.drawLine(x+w, y+h, x, y+h);
g.drawLine(x, y+h, x, y);
or the another variation is:
g.drawLine(x1, y1, x2, y2);
The above variation show the distance from
x-axis and y-axis.
The Application look like as follows:
DrawLine.java
import javax.microedition.midlet.*;
import javax.microedition.lcdui.*;
public class DrawLine extends MIDlet{
private Display display;
public void startApp(){
display = Display.getDisplay(this);
display.setCurrent (new DrawingCanvas());
}
public void pauseApp(){}
public void destroyApp (boolean forced){}
}
class DrawingCanvas extends Canvas{
public void paint (Graphics g){
g.setColor (255, 0, 0);
g.fillRect (0, 0, getWidth(), getHeight());
g.setColor (0, 0, 255);
g.fillRect (20, 30, 200, 80);
g.setColor (128, 0, 255);
g.drawLine (0, 0, 100, 200);
}
}
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