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Number of figures

On many occasions we need to make a huge amount of data to a JTable with a scroll very slow and consume large amounts of memory and resources.

Then the following realia manual that explains how this task in the most optimal possible. This manual is essential to properly utiizar a large volume of data in an application in java JTable

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Cytoskeletal Molecular Motors

The Cytoskeleton

In ordinary preparations of visible light microscopy or electronic, the cytoskeleton appears transparent and therefore invisible. Generally not as drawn in the schemes of the cell but is an important cellular component, complex and dynamic. The cytoskeleton maintains the shape of the cell, "anchor" the organelles in place and move part of the cell processes of growth and mobility.

There

various types of protein filaments that constitute the cytoskeleton: microfilaments, microtubules and intermediate filaments.

The microtubules are composed of subunits of a protein called tubulin and are often used by the cell to maintain its shape, are also the largest component of cilia and flagella.

The microfilaments are composed of subunits of the protein actin. They are about one third the diameter of the microtubule and are often used by the cell to change its structure so as to maintain it.

A large number of proteins associated with the cytoskeleton that control its structure both through the guidance and direction of the filaments and groups of their movement. A particularly interesting group of proteins associated with the cytoskeleton are "other" phones, such as myosin (an "engine" that moves actin filaments) and kinesin (a "motor" for microtubule).

The three components cytoskeleton are interconnected and form a lattice, which extends from the cell surface to the core. This system is built on a common architectural model is in an amazing variety of natural systems and is known as tensional integrity (tensegrity). This expression indicates that the system stabilizes itself mechanically, because of how the compression and tension forces are distributed and balanced within the structure.

structures that respond to this model of tensional integrity not reach mechanical stability and resistance of individual members but by the way the whole structure distributes and balances mechanical stresses. In these structures the tension is transmitted seamlessly through all elements estructurales.En other words, an increase of stress in any element of the structure is felt in all others. This overall increase in pressure is balanced by an increase in the compression of certain elements all over the structure. An archetypal example of these structures are geodesic domes Buckminster Fuller.

should be noted that the universal rules governing the construction applies to the formation of organizational structures, from molecules to tissues.

Centrioles and Basal Bodies.

are basically the same thing, are interconvertible structures. A centriole is made up of nine bundles of microtubules triplets. A triplet contains a complete microtubule fused to two incomplete. The basal bodies are related with cilia and flagella where, as centrioles, are associated with the cytoskeleton.

Centrioles play a vital role in cell division. They are surrounded by a dense material that stains the pericentriolar material , from which microtubules originate, even in cells without centrioles microtubules originating from this material.

Centrioles are often known for their role in cell division. They are members of the centrosome consisting of two perpendicular centrioles. The centrioles appear to determine the position of material pericentriolar, which in turn affects cell polarity. Note that the functional centrosome is typically from an embryo sperm fertilizing.

To expand on this topic see this literature.

Cytoskeleton Tutorial

Microtubules, microfilaments and intermediate filaments

The cytoskeleton

http://www.biologia.arizona.edu/cEll/tutor/cyto/page1.html

Cytoskeleton

http://www2.uah.es/biologia_celular/LaCelula/Cel5CK.html

CancerQuest

http://cancerquest.org/index.cfm?page=46 & ; lang = English & English CHANGETABLE =

Cell Biology Manual

http://w3.cnice.mec.es/eos/MaterialesEducativos/mem2001/biologia/citoplasma/esqueleto.htm

interaction between actin and other molecules, such as myosin -

Did you know ...?

actin filaments play an important role in cell motility . Among its properties emphasizes their polarity, which is behavior different from its two extremes: while one is biased or lengthens (positive end), the other tends to shorten or depolymerize (negative end). In addition, actin filaments are involved in phagocytosis in the process of muscle contraction and production of cytoplasmic flows .

For their part, intermediate filaments are highly resistant protein fibers that play a structural role in cells, especially those who are subjected to significant mechanical stresses. Depending on the cell type predominantly one or the other (neurofilament in cells nerve, vimentin in blood vessels, etc.) It is this diversity is of immense use in source characterization in cancer metastasis, thus, determining the type of intermediate filament we know the tissue where they produced the original tumor . But then, in addition, these filaments may help in the prenatal diagnosis congenital malformations.

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DINAIN, kinesin and Dynamin

The operation of actin-myosin complex becomes clear that cytoskeletal structures are ideal as support points, guides and transmission lines of the forces developed by molecular motors in cells. Not surprisingly, therefore, that the microtubules more rigid and stronger than actin filaments, constitute support for the operation of other molecular motors. And in retrospect, does not cause much astonishment that such engines are designed under the same principle as myosin. In fact, at least in the first case we will discuss below, are very similar (Table 1).

The DINAIN - protein force - is another mecanoenzima that uses energy from ATP hydrolysis to temporarily change its shape. It is also a large molecule composed of several subunits, the largest of which are two globular heads with a weight of 410 000 daltons each, in which resides the ATPase activity. This activity increased substantially in the presence of microtubules. The DINAIN was initially identified as the engine driving the movement of vibrating appendages called cilia and flagella that certain cells have. More recently it became obvious that there are other ways DINAIN distributed in the cytoplasm of a wide variety organisms.

The hallmark of DINAIN is its ability to move on microtubules in the same way as does myosin on actin filaments (Figure V.4). It is worth mentioning that this interaction is on the outside and not by the light of microtubules close as anyone could reasonably think. It appears that DINAIN heads are secured to a site on the wall of microtubules, then suddenly change shape, and then off to straighten and lock in a new site, constantly repeating the cycle while ATP available.


The ATP-ase in the Exonemo breaks the molecules of ATP and thus obtains energy for the movement of sperm. There is a theory by which the sperm move through a mechanism oscillator. Alternating sweeps right and left, the microtubules of the tail.



Spermatozoa.





sperm metabolism is aerobic and Cl and Mg ions promote motility. While the Ca +2 ion inhibits motility.

For proper motility is necessary to open Ca +2 channels and there is a change in the concentration of nucleotides in the Exonemo in the proximal portion of the tail.
In addition, any substance that inhibits the enzyme activity in sperm is a toxic substance for which hinders their motility.

The movement begins in the proximal portion of the tail (axoneme) and goes into the final. The sheath protein controls the tail beating, so it is not very sharp. There are a number of glands that release fundmental seminal fluid for sperm travel. The glands are in the path of it. So will acquire motility along the epididymis, the vas deferens, with the secretions of various glands.

In the bull, sperm speed is 72 microns per second and man, 35 to 50. The optimum pH is 7.5.

The fetal testis is an endocrine organ, acting as such. Is very different from ovarian feta, because the testicle produces a large amount of hormones. Among them:
• Testosterone: synthesized by fetal Leydig cells.
• AMH (AMH), synthesized by Sertoli cells.

sperm structure

The sperm will have a head, which houses the core and a structure that allows motility (tail). In the anterior nucleus is the acrosome, which is under the plasma membrane and leads enzymes released at fertilization. Behind the head, the neck is the region containing the centriole.


Cola: In the thickest part is the axoneme, where mitochondria. After the tail is tapered. Along the line, there are common structures, microtubules. There are 9 pairs of peripheral microtubules and a central pair. They are composed of protofilaments. One of the rings are 13 and 11 protofilaments.
The protofilaments consist of:
• Tubulin : two dimers (a1, a2 [also a, b])
• Histone .
• dynein : Is an ATPase. The role is to act on the mitochondria and ATP provide the sperm movement.




dynein arms are very important. Kartagener syndrome in man (also been studied in rats) individuals are unable to synthesize dynein. Its non-motile sperm, as well the hair cells of the respiratory tract and have great rates of respiratory diseases. Their hearts are on the right side "situs inversus."

References. E. Frixione

Meza I. (2006) Living Machines How Cells are moved? Fondo de Cultura Economica . Mexico, DF ISBN 6-4988-5 968-l

Electronic References.

Reproduction.

http://web.educastur.princast.es/proyectos/biogeo_ov/2BCH/B4_INFORMACION/T409_REPRODUCCION/informacion.htm

floating fertilization.

http://ciencia.nasa.gov/headlines/images/fertility/graveffects_med_sp.gif

New scientific.

http://www.novaciencia.com/2006/11/28/pildora-para-bloquear-la-eyaculacion/

Medline Plus

http://www.nlm.nih. gov/medlineplus/spanish/ency/esp_imagepages/9875.htm

Recuperados on 10 April 2007.

Eyesight Requirements Marines

JTable

This exercise in numbers on a java divide to get
the number of digits that has an integer.

For example if you enter the number 3454
the program will return a 4.

 
 import java.io. *; 
 
 class {
 
 Figures static int total = 0; 
 static int x = 0; 
 numCifras 
 static int (int x) {
 while (x! = 0) {x = x/10 
; 
 total + = 1; / / increment the counter 
 
} return total; 
 
 
} public static void main (String [] args) throws IOException {
 / / BufferedReader for reading from console 
 BufferedReader read = new BufferedReader (new InputStreamReader (System.in)); 
 System.out . println ("Enter a nu4mero:"); 
 / / read a line like string 
 leer.readLine String line = (); 
 / * Convertirmos the string to a number. 
 * You could put a try and catch to see with convertirlo.Por errors 
 * example if you enter a string * / 
 x = Integer.parseInt (line); 
 System.out.println ("The number of digits is:"); 
 / / Print the number of lines 
 System.out.println (numCifras (x)); 
}} 
 
 

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Search

JProgressBar Progress bars and graphics applications

This example looks for matches in files from a directory specified by the user
.

Problem:
If we have an application that performs a process that consumes a relatively long time, it's good to know the user of the application that the task is being processed and more or less the time left, so typical of the message: 'The process is by 20%' for example.

The Java Swing libraries, has mechanisms to show this progress, we will make an example of an application that searches a text string in all files in a directory espedificado.

Original source: telepolis.com

 
 java.awt.GridLayout import, import 
 java.awt.Cursor; 
 import java.awt.event .*; 
 import java.util .*; 
 import java. io .*; 
 import javax.swing .*; 
 import java.lang.reflect.InvocationTargetException; ProgressDemo public class String {
 
 startdir / / search directory 
 String patt, / / \u200b\u200bso let's look 
 outarea JTextArea / / output area for file pathnames 
 JFrame frame / / frame 
 JProgressBar Progbear / / progress bar 
 fileslab JLabel / / number of files 
 found search_flag boolean / / true if the search is in progress 
 
 
 class Search extends Thread {
 
 / / update the GUI 
 void doupdate (Runnable r) {try {
 
 SwingUtilities.invokeAndWait (r);} 
 
 catch (InvocationTargetException e1) {
 System.err.println (e1); 
 
} catch (InterruptedException e2) {
 System.err.println (e2); 
 
}} 
 / / gives us the list of files void 
 getFileList directory (File f, List list) {
 
 / / recursion if a directory within the same 
 if (f.isDirectory ()) {
 String entries [] = f.list (); 
 for ( int i = 0; i < entries.length; i++) {
 getFileList (new File (f, entries [i]) 
 list);} 
 
 
 
} / / for fciheros be added to the list and updates the progress bar 
 else if (f.isFile ()) {list.add 
 (f.getPath ()); 
 final int size = list.size (); 
 if (size% 100! = 0) {
 return;} 
 
 doupdate (new Runnable () {
 public void run () {
 progbar.setValue (size% 1000 ) 
 
}});} 
 
 
 
} / / check that the file contains the string 
 fileMatch boolean (String fn, String patt) {boolean found = false 
; 
 
 
 try {FileReader fr = new FileReader (fn) ; 
 BufferedReader br = new BufferedReader (fr); 
 String str; 
 while ((str = br.readLine ())! = null) {
 if (str.indexOf (patt)! = -1) {found = 
 true; 
 break; 
 
}} 
 br.close (); 
 
} catch (IOException e) {
 System.err.println (e);} 
 
 return found;} 
 
 
 
 
 / / perform the search 
 public void run () {
 List filelist = new ArrayList (); 
 
 final String sep = System.getProperty ("line.separator"); 
 
 doupdate (new Runnable () {public void 
 run () {
 outarea.setText 
 fileslab.setText ("");} 
 
 ("");}); 
 
 / / gives us the list of all files and displays the counter 
 getFileList (new File ( startdir), filelist); 
 filelist.size final int size = (); 
 doupdate (new Runnable () {
 public void run () {
 progbar.setValue (0); 
 fileslab.setText ("Found" + size + 
 "files, searching ..."); 
 
}}); 
 
 / / set the progress monitor final 
 ProgressMonitor pm = new ProgressMonitor (
 frame, "Searching for files", "", 0, size - 1); 
 pm.setMillisToDecideToPopup (0); 
 pm . setMillisToPopup (0); 
 
 / / iterate between the files, updating the progress monitor 
 for (int i = 0; i < size; i++) {
 final String fn = (String) filelist.get (i); 
 final int curr = i ; 
 if (pm.isCanceled ()) {  
                         break; 
                     } 
                     final boolean b = fileMatch(fn, patt); 
                     doUpdate(new Runnable() { 
                         public void run() { 
                             pm.setProgress(curr); 
                             pm.setNote(fn); 
                             if (b) { 
                                 outarea.append(fn + sep); 
                             } 
                         } 
                     }); 
                 }                
                 
                 doUpdate(new Runnable() { 
                     public void run()  { 
                         pm.close(); 
                         outarea.setCaretPosition(0); 
                         fileslab.setText(""); 
                     } 
                 });    
                 search_flag = false; 
             } 
         } 
     
         public ProgressDemo() { 
             frame = new JFrame("ProgressDemo");   
             frame.addWindowListener(new WindowAdapter() { 
                 public void windowClosing(WindowEvent e) { 
                     System.exit(0); 
                 } 
             }); 
  
   
  
             JPanel paneltop = new JPanel (); 
 panelbot JPanel = new JPanel (); 
 paneltop.setLayout (new GridLayout (5, 1)); 
 JPanel panel1 = new JPanel (); 
 panel1.add (new JLabel ("Home Directory")) ; final 
 dirfield = new JTextField JTextField (20); 
 panel1.add (dirfield) 
 panel2 JPanel = new JPanel (); 
 panel2.add (new JLabel ("Search Pattern")); 
 pattfield = final JTextField new JTextField (20); 
 panel2.add (pattfield) 
 panel3 JPanel = new JPanel (); 
 JButton button = new JButton ("Search");  
             panel3.add(button);    
             JPanel panel4 = new JPanel(); 
             progbar = new JProgressBar(0, 999); 
             panel4.add(progbar);    
             JPanel panel5 = new JPanel(); 
             fileslab = new JLabel(); 
             panel5.add(fileslab);    
             JPanel panel6 = new JPanel(); 
             outarea = new JTextArea(8, 40); 
             outarea.setEditable(false); 
             JScrollPane jsp = new JScrollPane(outarea,ScrollPaneConstants.VERTICAL_SCROLLBAR_AS_NEEDED,ScrollPaneConstants.HORIZONTAL_SCROLLBAR_NEVER); 
             panel6.add(jsp);   
     
     button.addActionListener (new ActionListener () {public void 
 actionPerformed (ActionEvent e) {startdir = dirfield.getText 
 (); 
 pattfield.getText patt = (); 
 if (startdir == null  else if (search_flag) {JOptionPane.showMessageDialog 
 (
 frame, "Search in progress," 
 "Error", JOptionPane.ERROR_MESSAGE) 
 
} else {
 search_flag = true; 
 new Search (). start (); 
 
}}} 
) 
 
 paneltop.add (panel1); 
 paneltop.add (panel2) 
 paneltop.add (panel3) 
 paneltop.add (panel4) 
 paneltop.add (panel5) 
 panelbot.add (panel6) 
 JPanel panel = new JPanel (); 
 panel.setLayout (new GridLayout (2, 1)); 
 panel.add (paneltop) 
 panel.add (panelbot) 
 frame. getContentPane (). add (panel); 
 frame.pack (); 
 frame.setLocation (200, 200); 
 frame.setVisible (true); 
 
 
} public static void main (String args []) {
 ProgressDemo new (); 
}} 
 
 
 
 
 
 

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java files

The GridLayout is a way of placing the components with great flexibility in the panel.
with setLayout (new GridLayout (row, column)); can set a layout with the number of rows and columns and components are added in defined cells.

The following example places the components in a grid that occupies the entire frame and places four buttons in their respective cell.

import javax.swing .*; import java.awt .*;

class Example extends JFrame {JButton
a = new JButton ("one");
two = new JButton JButton ("two");

 JButton three = new JButton ("three"); 
 JButton four = new JButton ("four"); 
 
 Menu () {
 this.setLayout (new GridLayout (2,2)); 
 add (one); 
 add (two); 
 add (three); 
 add (four); 
 
 setTitle ("GridLayout Example"); 
 setSize (400.400); 
 setVisible (true);} 
 
 
 public static void main (String [] args) {
 new Example (); 
}} 
 
 
 
 
 
 
 

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FlowLayout GridLayout

The FlowLayout is the simplest method of placing the components inside a Panel or JPanel in java. Each of the components of a panel found in FlowLayout are located from left to right as in a list, one after the other, jumping down when there is no space enough for that component. FlowLayout

belonging to java.awt, but also can be applied to swing, such as in this case to a JPanel.

An example of the use of the FlowLayout in a program to place three buttons on a panel.

import javax.swing .*;
import java.awt .*;


class Example extends JFrame {
JButton first = new JButton ("First");
JButton previous = new JButton ("Previous") ;

 JButton next = new JButton ("Next"); 
 JButton last = new JButton ("Last"); 
 
 Example () {
 / / Add the format to FlowLayout This.setLayout 
 JFrame (new FlowLayout ()); 
 / / Add components add 
 (first); 
 add (above); 
 add (next); 
 add (last) 
 
 setTitle ("FlowLayout Example") ; 
 setSize (400.400); 
 setVisible (true); 
 
 
} public static void main (String [] args) {
 new Example (); 
}} 
 
 
 
 
 
 
 

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Add scrolling JTextArea in java

With this code you can insert scroll bars in a JTextArea as any text editor. Sea

Text zonaText a JTextArea and a JPanel which is inserted the text box example how to insert scrolling in a text box is as follows.

Code:

/ / Add scroll bars to the main text box textScroll = new JScrollPane JScrollPane (text, JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED,

JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED)
zonaText.add (textScroll)

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ejmplo the use of a JToolBar. Place a toolbar in your java programs. You usually add a ImageIcon (icon) representing the action the button.

For example to insert an image on the Save button use:
ImagenGuardar = new ImageIcon ImageIcon ("guardar.gif");
BGuardar.setIcon(ImagenGuardar);

import javax.swing.*;

class Menu extends JFrame {
//Toolbar
JToolBar TBarra=new JToolBar();
JButton BNuevo=new JButton("N");
JButton BAbrir=new JButton("A");

   JButton BCopiar=new JButton("C"); 
   JButton BCortar=new JButton("C"); 
   JButton BPegar=new JButton("P");  
   JButton BGuardar=new JButton("G"); 
     public Menu() { 
  
   //ToolBar 
   TBarra.add(BNuevo); 
   TBarra.add(BAbrir); 
   TBarra.add(BGuardar); 
   TBarra.addSeparator(); 
   TBarra.add(BCopiar); 
 TBarra.add (BCortar) 
 TBarra.add (SGA); 
 BGuardar.setToolTipText ("Save"); 
 BNuevo.setToolTipText ("New"); 
 BAbrir.setToolTipText ("Open"); 
 BCopiar.setToolTipText (copy); 
 BCortar.setToolTipText (BCortar "); 
 BPegar.setToolTipText (" Paste "); 
 
 
 add (TBarra," North "); 
 
 TBarra.setFloatable (false); 
 setTitle ( "Examples JPopupMenu"); 
 setSize (800.600); 
 setVisible (true);} 
 
 
 public static void main (String [] args) {
 new Menu ();} 
 
 
 
 
} 
 
 
 JPopupMenu 

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JToolBar JPopupMenu, JMenu

Example of java. Added this code to a text box
a context menu with the right button with the basic command to copy, cut and paste
.

import javax.swing .*;

class Menu extends JFrame {

/ / Right button
PopUpMenu PopMenu = new JPopupMenu JPopupMenu ();
PopCortar = new JMenuItem JMenuItem ("Cut");
PopCopiar = new JMenuItem JMenuItem (copy);

 PopPegar = new JMenuItem JMenuItem ("Paste"); 
 PopSelTodo = new JMenuItem JMenuItem ("Select All"); 
 JTexttArea JTextArea text = new (); 
 
 public Menu () {
 
 / / JPopupMenu 
 PopMenu.add (PopCortar) 
 PopMenu.add (PopCopiar) 
 PopMenu.add (PopPegar) 
 add (text); 
 / / set the JFrame 
 PopUpMenu Texto.setComponentPopupMenu (PopMenu) 
 
 setTitle ("Sample JPopupMenu"); 
 setSize (800.600); 
 setVisible (true); 
 
 
} public static void main (String [] args) {
 new Menu (); 
}} 
 
 
 
 
 
 
 

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right click in java

Example of creating a menu in java. This code performs a menu on Swing.
Remember that for the buttons to work you have to add an event of such action
action event: MGuardar.addActionListener (this);

import javax.swing .*;

class Menu extends JFrame {
/ / Menu Items
mbars = new JMenuBar JMenuBar ();
Marchive = new JMenu JMenu ("File");

 MNuevo = new JMenuItem JMenuItem ("New"); 
 Mabre = new JMenuItem JMenuItem ("Open"); 
 MSAL = new JMenuItem JMenuItem ("Exit"); 
 mGuard = new JMenuItem JMenuItem ("Save"); 
 MImprimir = new JMenuItem JMenuItem ("Print"); 
 JMenu Timing = new JMenu ("Edit"); 
 MCortar = new JMenuItem JMenuItem ("Cut"); 
 MCopiar = new JMenuItem JMenuItem ("Copy"); 
 MPeg = new JMenuItem JMenuItem ("Paste"); 
 JMenuItem MBuscar = new JMenuItem ("Search"); 
 MRemplazar = new JMenuItem JMenuItem ("Replace"); 
 mSELECT = new JMenuItem JMenuItem ("Select All"); 
 
 public Menu () {
 / / Menu 
 MArchivo.add (MNuevo ) 
 MArchivo.add (Mabre) 
 MArchivo.add (Health Ministry); 
 MArchivo.add (mGuard) 
 MArchivo.add (MImprimir) 
 MArchivo.addSeparator (); 
 MArchivo.add (Health Ministry); 
 MEdicion.add (MCortar) 
 MEdicion.add (MCopiar) 
 MEdicion.add (MPEG); 
 
 MEdicion.addSeparator () / / Puts a horizontal line of separation 
 MEdicion.add (MBuscar) 
 MEdicion.add (MRemplazar) Timing 
 . addSeparator (); 
 MEdicion.add (mSELECT) 
 MBarra.add (Marchive) 
 MBarra.add (measuring); 
 setJMenuBar (mbars) 
 
 setTitle ("java JMenu Example"); 
 setSize (800.600); 
 setVisible (true); 
 
 
} public static void main (String [] args) {
 new Menu (); 
}} 
 
 
 
 
 
 
 

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Search words

This code finds the number of occurrences of a word in a particular text string with the StringTokenizer class. Is case-sensitive.


/ / word: the word you wish to search in the text.
/ / TextoBusc: text which deesa look up the word. Void

buscarPalbara (Word, TextoBusc) {int position = 0;

boolean uppercase = true;
numPalabras int = 0, / / \u200b\u200bCount the number and words in the text

 String token = ""; 
 / / Using StringTokenizer Class StringTokenizer 
 Search = new StringTokenizer (TextoBusc, "\\ "'!., \\ t \\ n ()[]?-_@"); 
 while (Busca.hasMoreTokens ()! = false) {String 
 Busca.nextToken palabrilla = (); 
 if (shift) / / uppercase and lowercase Differentiating between 
 if (palabrilla.equals (word)) numPalabras + +; 
 else / / No dereference between uppercase and lowercase 
 if (palabrilla. toLowerCase (). equals (palabra.toLowerCase ())) numPalabras + +; 
}} 
 
 
 
 
 
 

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Tokens

Most of the time you close the main window in java does not occur out of the application as can be expected. To exit completely from the application to close the window of your main form you must enter the following code in the main class of the form.



/ / Method to close the window addWindowListener (new WindowAdapter ()

{public void windowClosing (WindowEvent we) {

System.exit (0);

}}); 
 
 
 
 
 

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Exit application in java applet ImageIcon and Image in

to upload an image ImageIcon or a java applet using the following statement:

ImageIcon:

ImageIcon picture = new ImageIcon (getImage (getCodeBase (), "photo.jpg"));

blocks can also upload images as follows img1.jpg mode, img2.jpg, img *. jpg with this trick, for example with 10 images.

ImageIcon image [] = new ImageIcon [10]; for (int i = 0; i image [i] = new ImageIcon (getImage (getCodeBase (), Integer.toString (i) + ". JPG"));}

 Miage To load an applet is used following code: Image 
 imgJava = getImage (j.getCodeBase (), "java.png"); 
 <10;i++){
 can also perform the above trick to upload groups of pictures. 
 
 

Icon image [] = new Icon [10];
for (int i = 0; i
image [i] = new getImage (j.getCodeBase (), "img" + Integer.toString (i) + " . png ");}

 
 url 

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Read Open url in java text file

Example in java. This code opens a url of a web page and read
the entire contents of the address. The constants are the IP and PORT <10;i++){
own proxy if available, but proxy you remove or comment this part
code.

String text = "";

try {/ / In case of proxy
System.setProperty ("http.proxyHost", IP);
System.setProperty ("http.proxyPort", PORT);

URL address = new URL ("http://programasjava.blogspot.com");

 InputStreamReader isr = new InputStreamReader (direccion.openStream ()); 
 BufferedReader input = new BufferedReader (isr); 
 String line = null; 
 while ((line = entrada.readLine ())!= null) {text + = line 
 + "\\ N";} 
 
 entrada.close (); 
 
} catch (MalformedURLException mre) {System.out.println 
 (mre); 
 
} catch (IOException ioe) {System.out.println 
 ( ioe);} 
 
 
 
 
 
 

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This example explains how to open a text file in java, showing it in through a JTextArea
name "Text" and choosing the file with a JFileChooser
.

String Text = "";

try {JFileChooser fc = new JFileChooser (System.getProperty ("user.dir"));

fc.showOpenDialog (this);
fc.getSelectedFile File Open = (); / Returns the File we will leerName
if (Abrir! = null) {FileReader

 Texto.setText (""); File = new FileReader (Open); 
 BufferedReader read = new BufferedReader (file); 
 while ((Text = read. readLine ())!= null) {
 Texto.append (Text + "\\ n") / / append concatenates the line read} 
 
 leer.close ();} 
 
 
} catch (IOException ioe) {
 System . out.println (ioe);} 
 
 
 
 
 
 

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texo Save file

This example explains how to save a text file java, using the JFileChooser class to choose the name and directory file.


String Text = "Text you want to save";
try {/ / System.getProperty ("user.dir") Open the JFileChooser where is the executable

JFileChooser fc = new JFileChooser (System.getProperty (" user.dir ")); fc.showSaveDialog (this) / / Displays the File Save dialog

fc.getSelectedFile = ();
if (Save! = null) {FileWriter

 Guardx = new FileWriter (Save); 
 Guardx.write (Text); 
 Guardx.close () / / Close the file} 
 
 
} catch (IOException ioe) {
 System.out.println (ioe); / / Display the console errors 
 
} 
 
 
 
 

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Connect to java

To connect to a db in java is made the following statement:
The following example is designed for a db with jdbc driver
and in this case with a DB access. For any other BD
camber just have the type of driver and connect statement.
String DATABASE = 'Example.mdb';

try {/ / Load driver Class.forName

(sun.jdbc.odbc.JdbcOdbcDriver ");
/ / Connect to the database
Connection = DriverManager.getConnection (" jdbc: odbc: Driver = {Microsoft Access
Driver (*. mdb)}; DBQ = "+ DATABASE);

} catch (ClassNotFoundException cnfe)
{/ / No driver
System.out.println (cnfe);}

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BD Eclipse programming environment

Eclipse is a very powerful programming platform that allows the development of very diverse applications, such as C + +, Java programs, php, etc.

One of the main tools to enhance this tool is the use of numerous plug-ins that help you customize Eclipse for java or php, etc.


can download eclipse Eclipse plugins

What you can download them in Plug-ins

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NetBeans is a development environment designed for open source software across platforms, making use of technology Java.

has numerous plugins practical support for creating graphical interfaces visually in java, web application development (applets, servlets), CVS version control. It also allows the programming of J2ME mobile phone applications and much more.

Netbeans is a really good solution for programming in java of all your applications.

Download it from Netbeans

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netbeans Java 2 SE Development Kit (JDK)

Development Kit Java 2 platform.
New development kit version of the Java 2 platform, which allows you to make your own programs in java. This version is much more stable and faster than ever. Java Software