Tugas Praktek Sistem Operasi

semester.java

import javax.microedition.midlet.*;

import javax.microedition.lcdui.*;

public class Semester extends MIDlet{

Display display;

MainCanvas mainCanvas;

    List list;

Command cmExit;

Ticker tic ;

Image image;

public Semester(){

cmExit = new Command ("Keluar",Command.EXIT,1);

display = Display.getDisplay(this);

tic = new Ticker("POLITEKNIK NEGERI SWIJAYA PALEMBANG");

list = new List("POLSRI", List.IMPLICIT);

list.setTicker(tic);

display.setCurrent (list);

}

public void startApp1 () {

}

public void startApp(){

mainCanvas = new MainCanvas (this, display);

display.setCurrent(mainCanvas);

}

public void pauseApp () {

  }

  public void destroyApp (boolean unconditional) {

  }

public void commandAction (Command c, Displayable s){

}

public void exitMIDlet(){

destroyApp(true);

notifyDestroyed();

}

};

maincanvas.java

import javax.microedition.lcdui.*;

class MainCanvas

extends Canvas implements CommandListener{

private Display display;

private Semester midlet;

private Command cmExit;

private Image image;

private List list;

private Ticker tic;

public MainCanvas(Semester midlet, Display display){

 this.midlet = midlet;

 this.display = display;

 try{

  image = Image.createImage("/images.jpg");

}catch (java.io.IOException e){

}

 cmExit = new Command ("Keluar",Command.EXIT,1);

 addCommand (cmExit);

 setCommandListener(this);

 }

 protected void paint (Graphics g){

  g.drawImage (image, 0, 35, Graphics.TOP | Graphics.LEFT);

  g.setColor (255, 0, 0);

g.setFont (Font.getFont(Font.FACE_PROPORTIONAL,

 Font.STYLE_BOLD,Font.SIZE_LARGE));

g.drawString("Alamat : Jl Srijaya Negara Bukit", 10,220,

 Graphics.TOP | Graphics.LEFT);

 g.setColor (255, 0, 0);

  g.setFont (Font.getFont(Font.FACE_PROPORTIONAL,

   Font.STYLE_BOLD,Font.SIZE_LARGE));

  g.drawString(" Besar Palembang 30139", 25, 235,

  Graphics.TOP | Graphics.LEFT);

  g.setColor (255, 0, 0);

   g.setFont (Font.getFont(Font.FACE_PROPORTIONAL,

    Font.STYLE_BOLD,Font.SIZE_LARGE));

   g.drawString("Web : http://www.polsri.ac.id", 10,250,

  Graphics.TOP | Graphics.LEFT);

  g.setColor (255, 0, 0);

   g.setFont (Font.getFont(Font.FACE_PROPORTIONAL,

    Font.STYLE_BOLD,Font.SIZE_LARGE));

   g.drawString("Telpon : +620711353414", 20,265,

  Graphics.TOP | Graphics.LEFT);

  }

 public void commandAction(Command c, Displayable s){

 if(c == cmExit){

 midlet.exitMIDlet();

 }

 }

 }

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