Java Threading
November 21, 2009
TimerTextField.java
JAVA:
-
import java.util.Date;
-
-
import javax.swing.JTextField;
-
-
-
private boolean gogo = true;
-
@Override
-
public void run() {
-
// TODO Auto-generated method stub
-
Date d;
-
-
while(gogo)
-
{
-
this.setText(d.toString());
-
this.repaint();
-
try {
-
// TODO Auto-generated catch block
-
e.printStackTrace();
-
}
-
}
-
}
-
-
public void closeMe()
-
{
-
gogo = false;
-
}
-
}
Apps.java
JAVA:
-
import java.awt.Component;
-
import java.awt.Rectangle;
-
import java.awt.event.ActionEvent;
-
import java.awt.event.ActionListener;
-
import java.util.concurrent.ExecutorService;
-
import java.util.concurrent.Executors;
-
-
import javax.swing.JButton;
-
import javax.swing.JFrame;
-
import javax.swing.JScrollPane;
-
import javax.swing.JTextArea;
-
-
-
-
private TimerTextField ttf;
-
private JTextArea ta;
-
private JScrollPane jp;
-
private JButton jb;
-
public Apps()
-
{
-
-
this.setVisible(true);
-
this.setLayout(null);
-
this.setBounds(10,20,500,400);
-
init();
-
}
-
-
protected void init()
-
{
-
ttf = new TimerTextField();
-
-
-
jb.setText("Click Me");
-
-
-
@Override
-
// TODO Auto-generated method stub
-
jb_method(e);
-
-
}
-
-
});
-
-
}
-
-
{
-
ExecutorService es = Executors.newSingleThreadExecutor();
-
es.execute(ttf);
-
//ttf.run();
-
}
-
-
{
-
this.add(c);
-
c.setBounds(r);
-
-
}
-
-
{
-
new Apps();
-
}
-
}
Java Navigation
November 14, 2009
Main.java
JAVA:
-
public class Main {
-
new Apps();
-
}
-
}
Apps.java
JAVA:
-
import java.awt.Component;
-
import java.awt.Rectangle;
-
import java.awt.event.ActionEvent;
-
import java.awt.event.ActionListener;
-
import java.util.ArrayList;
-
import java.util.HashMap;
-
import java.util.Iterator;
-
import java.util.List;
-
import java.util.ListIterator;
-
import javax.swing.JButton;
-
import javax.swing.JFrame;
-
import javax.swing.JLabel;
-
import javax.swing.JScrollPane;
-
import javax.swing.JTextArea;
-
import javax.swing.JTextField;
-
-
private JButton jbsave;
-
private JButton jbdisplay;
-
private JButton jbprev;
-
private JButton jbnext;
-
private JTextField team;
-
private JTextField player;
-
private JTextField salary;
-
private JTextField status;
-
private JLabel lblteam;
-
private JLabel lblplayer;
-
private JLabel lblsalary;
-
private List <Player> lm;
-
-
private HashMap<String,List <Player>> hm;
-
private int num = 1;
-
private String currTeam;
-
int TotalPlayer = 0;
-
int TotalTeam = 0;
-
int currPlayerIndex = 0;
-
Iterator<String> team_iterator;
-
Iterator<Player> player_iterator;
-
ListIterator <Player>li;
-
-
public Apps() {
-
init();
-
this.setLayout(null);
-
this.setVisible(true);
-
this.setBounds(10,20,400,400);
-
-
lm = new ArrayList<Player>();
-
}
-
private void init() {
-
-
-
addComponents(lblteam,40,40,100,25);
-
addComponents(lblplayer,40,70,100,25);
-
addComponents(lblsalary,40,100,100,25);
-
addComponents(team,150,40,100,25);
-
addComponents(player,150,70,100,25);
-
addComponents(salary,150,100,100,25);
-
addComponents(status,40,130,210,25);
-
addComponents(jbsave,40,170,100,25);
-
addComponents(jbdisplay,150,170,100,25);
-
addComponents(jbprev,40,200,100,25);
-
addComponents(jbnext,150,200,100,25);
-
-
lblteam.setText("Team");
-
lblplayer.setText("Player Name");
-
lblsalary.setText("Salary");
-
jbprev.setText("Previous");
-
jbnext.setText("Next");
-
-
jbsave.setText("Save");
-
jbdisplay.setText("Display");
-
status.setEnabled(false);
-
/*jbprev.setEnabled(false);
-
jbnext.setEnabled(false);*/
-
jbsave_actionPerformed(e);
-
}
-
});
-
-
jbdisplay_actionPerformed(e);
-
}
-
});
-
jbprev_actionPerformed(e);
-
}
-
});
-
jbnext_actionPerformed(e);
-
}
-
});
-
}
-
-
currPlayerIndex = 0;
-
TotalPlayer = 0;
-
team_iterator = hm.keySet().iterator();
-
TotalTeam = hm.size();
-
-
display();
-
jbnext.setEnabled(true);
-
}
-
-
display();
-
}
-
display();
-
}
-
private void display()
-
{
-
Player p;
-
if (team_iterator.hasNext())
-
{
-
if (TotalPlayer == 0)
-
{
-
currTeam = team_iterator.next();
-
TotalPlayer = lm.size();
-
li = lm.listIterator();
-
}
-
-
if (li.hasNext())
-
{
-
currPlayerIndex ++;
-
p = (Player) li.next();
-
team.setText(currTeam);
-
player.setText(p.getPlayer());
-
salary.setText(p.getSalary());
-
status.setText("Player " + currPlayerIndex + " of " + lm.size());
-
if (TotalPlayer == currPlayerIndex)
-
TotalPlayer = 0;
-
}
-
}
-
else
-
TotalTeam = 0;
-
}
-
Player p = new Player();
-
p.setPlayer(player.getText());
-
p.setSalary(salary.getText());
-
-
lm = hm.get(team.getText());
-
if (lm == null)
-
{
-
lm = new ArrayList<Player>();
-
}
-
lm.add(p);
-
-
hm.put(team.getText(), lm);
-
status.setText("Record Saved");
-
team.setText("");
-
player.setText("");
-
salary.setText("");
-
-
}
-
this.add(comp);
-
comp.setBounds(x, y, width, height);
-
}
-
}
Player.java
JAVA:
Java Hashmap
November 13, 2009
Pet.java
JAVA:
Apps.java
JAVA:
-
import java.awt.Component;
-
import java.awt.event.ActionEvent;
-
import java.awt.event.ActionListener;
-
import java.io.BufferedReader;
-
import java.io.FileReader;
-
import java.io.FileWriter;
-
import java.io.IOException;
-
import java.io.PrintWriter;
-
import java.util.ArrayList;
-
import java.util.HashMap;
-
import java.util.Iterator;
-
import java.util.List;
-
import java.util.ListIterator;
-
-
import javax.swing.JButton;
-
import javax.swing.JFrame;
-
import javax.swing.JScrollPane;
-
import javax.swing.JTextArea;
-
import javax.swing.JTextField;
-
-
-
{
-
private JButton jbsave;
-
private JButton jbdisplay;
-
private JTextField name;
-
private JTextField age;
-
private JTextArea ta;
-
private HashMap<String,Integer> hm;
-
private List <Pet> lm;
-
private JScrollPane jscroll;
-
-
public Apps()
-
{
-
init();
-
this.setLayout(null);
-
this.setVisible(true);
-
this.setBounds(10,20,400,300);
-
-
hm = new HashMap<String,Integer>();
-
lm = new ArrayList<Pet>();
-
}
-
-
private void init()
-
{
-
-
addComponents(name,40,40,100,25);
-
addComponents(age,40,70,50,25);
-
addComponents(jbsave,40,100,70,25);
-
addComponents(jbdisplay,120,100,100,25);
-
addComponents(jscroll,40,160,150,100);
-
-
jscroll.getViewport().add(ta);
-
jbsave.setText("Save");
-
jbdisplay.setText("Display");
-
{
-
jbsave_actionPerformed(e);
-
}
-
});
-
-
{
-
{
-
try
-
{
-
jbdispaly_actionPerformed(e);
-
}
-
{
-
e1.printStackTrace();
-
}
-
}
-
});
-
}
-
-
{
-
String key;
-
ta.setText("HashMap size : " + hm.size());
-
Iterator<String> iterator = hm.keySet().iterator();
-
-
while( iterator. hasNext() )
-
{
-
key = iterator.next();
-
ta.append("\n"+key + " , " + hm.get(key));
-
}
-
-
Pet p;
-
ta.append("\nList size : " + lm.size());
-
-
while(li.hasNext())
-
{
-
p = (Pet) li.next();
-
ta.append("\n" + p.getName() + " , " + p.getAge());
-
}
-
}
-
{
-
Pet p = new Pet();
-
int i_age;
-
p.setName(name.getText());
-
p.setAge(i_age);
-
-
hm.put(name.getText(), i_age);
-
lm.add(p);
-
}
-
-
{
-
this.add(comp);
-
comp.setBounds(x, y, width, height);
-
}
-
}
Main.java
JAVA:
-
public class Main
-
{
-
{
-
new Apps();
-
}
-
}
Java Array
November 13, 2009
JAVA:
-
import java.util.Arrays;
-
-
public class MainProg {
-
-
/**
-
* @param args
-
*/
-
// TODO Auto-generated method stub
-
int num1[] = {1,2,3,4};
-
int num2[] = new int[4];
-
int num3[] = new int[4];
-
-
// to populate
-
for (int i=0 ; i <4 ; i++) {
-
num2[i] = i;
-
}
-
-
-
// to display
-
for ( int value : num2) {
-
}
-
-
int value;
-
for (int x=0 ; x <4 ; x++) {
-
value = num2[x];
-
}
-
-
}
-
}
JAVA:
-
import java.util.Arrays;
-
import java.util.Random;
-
-
-
public class ArrayEx2 {
-
-
/**
-
* @param args
-
*/
-
// TODO Auto-generated method stub
-
int e_matrix[][] = new int[3][3] ;
-
int w_matrix[][] = new int[4][];
-
int n_items;
-
-
-
for (int i=0 ; i <e_matrix.length; i++) {
-
}
-
display(e_matrix);
-
-
for (int i=0 ; i <w_matrix.length; i++) {
-
n_items = num.nextInt(4) + 1 ;
-
w_matrix[i] = new int[n_items];
-
-
for (int x=0 ; x <w_matrix[i].length ; x++) {
-
w_matrix[i][x] = num.nextInt(50);
-
}
-
}
-
display(w_matrix);
-
}
-
-
public static void display(int the_matrix[][]){
-
for (int y=0 ; y <the_matrix.length ; y++) {
-
for (int x=0 ; x <the_matrix[y].length ; x++) {
-
}
-
}
-
-
}
-
-
}






Recent Comments