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TableFilterSelectionVectorPanel

admin — Wed, 20 Oct 2010 06:54:58 +0000

package components;

/**
* Created by IntelliJ IDEA.
* User: hamid valizadegan
* Date: Sep 26, 2010
* Time: 3:34:25 AM
*/

import util.Util;

import javax.swing.*;
import javax.swing.event.DocumentEvent;
import javax.swing.event.DocumentListener;
import javax.swing.event.ListSelectionEvent;
import javax.swing.event.ListSelectionListener;
import javax.swing.table.AbstractTableModel;
import javax.swing.table.TableRowSorter;
import java.awt.*;
import java.util.ArrayList;
import java.util.List;
import java.util.Vector;

public class TableFilterSelectionVectorPanel extends JPanel {

private boolean DEBUG = true;
private String[] fileds = {};// {"id", "name", "zipcode"};
private JTable table;
private JTextField filterText;
private JTextField statusText;
private TableRowSorter<AbstractTableModel> sorter;
AbstractTableModel model = new javax.swing.table.DefaultTableModel(new Object[][]{}, new String[]{"design Time"});

public JTable getTable() {
return table;
}

public TableFilterSelectionVectorPanel() {
super();
setLayout(new BoxLayout(this, BoxLayout.Y_AXIS));
Vector dataVector = openTableQuery();
String fileds = Util.fetchGetterFields(dataVector.get(0));
Vector columnNamesVector =Util.stringToArrayVector(fileds, ",");

//Create a table with a sorter.
model = java.beans.Beans.isDesignTime() ? model : new MyTableModel(dataVector, columnNamesVector);
sorter = new TableRowSorter<AbstractTableModel>(model);
table = new JTable(model);

table.setRowSorter(sorter);
table.setPreferredScrollableViewportSize(new Dimension(500, 70));
table.setFillsViewportHeight(true);
//For the purposes of this example, better to have a single
//selection.
table.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
//When selection changes, provide user with row numbers for
//both view and model.
table.getSelectionModel().addListSelectionListener(
new ListSelectionListener() {

public void valueChanged(ListSelectionEvent event) {
int viewRow = table.getSelectedRow();
if (viewRow < 0) {
//Selection got filtered away.
statusText.setText("");
} else {
int modelRow =
table.convertRowIndexToModel(viewRow);
statusText.setText(
String.format("Selected Row in view: %d. " + "Selected Row in model: %d.", viewRow, modelRow));
}
}
});
//Create the scroll pane and add the table to it.
JScrollPane scrollPane = new JScrollPane(table);
//Add the scroll pane to this panel.
add(scrollPane);
//Create a separate form for filterText and statusText
JPanel form = new JPanel(new SpringLayout());
JLabel l1 = new JLabel("Filter Text:", SwingConstants.TRAILING);
form.add(l1);
filterText = new JTextField();
//Whenever filterText changes, invoke newFilter.
filterText.getDocument().addDocumentListener(
new DocumentListener() {

public void changedUpdate(DocumentEvent e) {
newFilter(filterText.getText());
}

public void insertUpdate(DocumentEvent e) {
newFilter(filterText.getText());
}

public void removeUpdate(DocumentEvent e) {
newFilter(filterText.getText());
}
});
l1.setLabelFor(filterText);
form.add(filterText);
JLabel l2 = new JLabel("Status:", SwingConstants.TRAILING);
form.add(l2);
statusText = new JTextField();
l2.setLabelFor(statusText);
form.add(statusText);
SpringUtilities.makeCompactGrid(form, 2, 2, 6, 6, 6, 6);
add(form);
form.setVisible(!DEBUG);
}
private Vector openTableQuery() {
Vector dataVector=new Vector(3);
dataVector.add(new Student("1","hamid", "valizadegan"));
dataVector.add(new Student("2","jalal", "mashouli"));
dataVector.add(new Student("3","kambiz", "yaghobi"));
return dataVector;
}

public String getFilterText() {
return filterText.getText();
}

public void setFilterText(String filterText) {
this.filterText.setText(filterText);
}

/**
* Update the row filter regular expression from the expression in
* the text box.
*/
private void newFilter(String regex) {
List<RowFilter<AbstractTableModel, Object>> rfs = new ArrayList<RowFilter<AbstractTableModel, Object>>();
RowFilter<AbstractTableModel, Object> rf = RowFilter.regexFilter("", 0);
//If current expression doesn't parse, don't update.
String[] regexes =Util.stringToArraySplit(regex, ",");
for (int i = 0; i < regexes.length; i++) {
try {
if (!regexes[i].isEmpty()) {
rf = RowFilter.regexFilter(regexes[i], i);
rfs.add(rf);
}

} catch (java.util.regex.PatternSyntaxException e) {
return;
}
}
if (rf == null) {
return;
}
rf = RowFilter.andFilter(rfs);
sorter.setRowFilter(rf);
}
private String id;

public String getId() {
return id;
}

public void setId(String id) {
this.id = id;
}

public int getIdIndexColumn() {
return model.findColumn(id);
}
public String[] getFileds() {
return fileds;
}

public void setFileds(String[] fileds) {
this.fileds = fileds;
}

public boolean isRecordSelected() {
return table.getSelectedRow() != -1;
}

public Object getSelectedID() {
int col = model.findColumn(id);
int row = table.getSelectedRow();
if (row != -1 && col != -1) {
return table.getValueAt(row, col);
}
return null;
}

class MyTableModel extends AbstractTableModel { //DefaultTableModel { //
Vector rowDataVector;
Vector columnNamesVector;
public MyTableModel() {
}
public MyTableModel(Vector newData, Vector colNames) {
setDataVector(newData,colNames);
}
public void setDataVector(Vector newData, Vector colNames) {
rowDataVector=newData;
columnNamesVector=colNames;
fireTableDataChanged();
}

public int getColumnCount() {
return columnNamesVector.size();
}

public int getRowCount() {
return rowDataVector.size();
}

public String getColumnName(int col) {
return (String)columnNamesVector.get(col);
}
public Object getValueAt(int row, int col) {
return Util.execGetMethod(rowDataVector.get(row), getColumnName(col));
}

/*
* JTable uses this method to determine the default renderer/
* editor for each cell. If we didn't implement this method,
* then the last column would contain text ("true"/"false"),
* rather than a check box.
*/
public Class getColumnClass(int c) {
return getValueAt(0, c).getClass();
}

/*
* Don't need to implement this method unless your table's
* editable.
*/
public boolean isCellEditable(int row, int col) {
//Note that the data/cell address is constant,
//no matter where the cell appears onscreen.
if (col < 2) {
return false;
} else {
return true;
}
}

/*
* Don't need to implement this method unless your table's
* data can change.
*/
public void setValueAt(Object value, int row, int col) {
if (DEBUG) {
System.out.println("Setting value at " + row + "," + col
+ " to " + value
+ " (an instance of "
+ value.getClass() + ")");
}

//data[row][col] = value;
Util.execSetMethod(rowDataVector.get(row), getColumnName(col),new Object[]{value});
fireTableCellUpdated(row, col);

if (DEBUG) {
System.out.println("New value of data:");
printDebugData();
}
}

private void printDebugData() {
int numRows = getRowCount();
int numCols = getColumnCount();

for (int i = 0; i < numRows; i++) {
System.out.print(" row " + i + ":");
for (int j = 0; j < numCols; j++) {
System.out.print(" " + getValueAt(i,j));
}
System.out.println();
}
System.out.println("--------------------------");
}
}

/**
* Create the GUI and show it. For thread safety,
* this method should be invoked from the
* event-dispatching thread.
*/
private static void createAndShowGUI() {
//Create and set up the window.
JFrame frame = new JFrame("TableFilterDemo");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

//Create and set up the content pane.
TableFilterSelectionVectorPanel newContentPane = new TableFilterSelectionVectorPanel();
newContentPane.setOpaque(true); //content panes must be opaque
frame.setContentPane(newContentPane);

//Display the window.
frame.pack();
frame.setVisible(true);
}

public static void main(String[] args) {
//Schedule a job for the event-dispatching thread:
//creating and showing this application's GUI.
new JTable(new Vector(),new Vector() );
SwingUtilities.invokeLater(new Runnable() {

public void run() {
createAndShowGUI();
}
});
}
}

Original post blogged on nvware.

Fetch Getter Fields

admin — Mon, 18 Oct 2010 07:50:35 +0000

public static String fetchGetterFields(Object object) {
String fields = "";
String fieldName;
String firstChar;
Class type = object.getClass();
Method[] methods = type.getDeclaredMethods();
for (int i = 0; i < methods.length; i++) {
try {
String methodName = methods[i].getName();
if (methodName.startsWith("get")) {
fieldName=methodName.replaceFirst("get", "")+",";
firstChar=fieldName.substring(0,1);
fields+=fieldName.replaceFirst(firstChar,firstChar.toLowerCase());
}
} catch (Throwable e) {
System.err.println(e);
}
}
return fields;
}

Original post blogged on nvware.

String Tokenizer

admin — Mon, 18 Oct 2010 07:45:12 +0000

public static String[] stringToArray(String wordString, String delim) {
//--- Declare and create a StringTokenizer
StringTokenizer st = new StringTokenizer(wordString, delim);
//--- Create an array which will hold all the tokens.
String[] result = new String[st.countTokens()];
int i = 0; // index into the next empty array element
//--- Loop, getting each of the tokens
while (st.hasMoreTokens()) {
result[i++] = st.nextToken();
}
return result;
}

Original post blogged on nvware.

String split

admin — Mon, 18 Oct 2010 07:44:15 +0000

public static String[] stringToArraySplit(String wordString, String delim) {
String[] starwords = wordString.split ("\\"+delim);
return starwords;
}

Original post blogged on nvware.

How can I backup my MySQL database using SSH?

admin — Sat, 19 Jun 2010 06:44:57 +0000

Shell:~ >mysqldump -h databaeshost -u youruserName -p yourpassword dbName > sqlFile.sql;

Original post blogged on nvware.

Simple Calculator

admin — Sun, 02 May 2010 05:05:52 +0000

CalcJFrame.java

import javax.swing.JButton;

/**
*
* @author nvware user
*/
public class CalcJFrame extends javax.swing.JFrame {

/** Creates new form CalcJFrame */
public CalcJFrame() {
initComponents();
}

/** This method is called from within the constructor to
* initialize the form.
* WARNING: Do NOT modify this code. The content of this method is
* always regenerated by the Form Editor.
*/
@SuppressWarnings("unchecked")
// <editor-fold defaultstate="collapsed" desc="Generated Code">//GEN-BEGIN:initComponents
private void initComponents() {

jBtnPlus = new javax.swing.JButton();
jBtn1 = new javax.swing.JButton();
jBtn2 = new javax.swing.JButton();
jBtn3 = new javax.swing.JButton();
jBtn4 = new javax.swing.JButton();
jBtn5 = new javax.swing.JButton();
jBtn6 = new javax.swing.JButton();
jBtn7 = new javax.swing.JButton();
jBtn8 = new javax.swing.JButton();
jBtn0 = new javax.swing.JButton();
jBtnMinus = new javax.swing.JButton();
jBtnMultiplay = new javax.swing.JButton();
jBtnDivide = new javax.swing.JButton();
jBtnEqual = new javax.swing.JButton();
jBtnBackSpace = new javax.swing.JButton();
jBtnClear = new javax.swing.JButton();
jTextField1 = new javax.swing.JTextField();
jBtn9 = new javax.swing.JButton();

setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);

jBtnPlus.setText("*");
jBtnPlus.addMouseListener(new java.awt.event.MouseAdapter() {
public void mouseClicked(java.awt.event.MouseEvent evt) {
operationMouseClick(evt);
}
});
jBtnPlus.addMouseMotionListener(new java.awt.event.MouseMotionAdapter() {
public void mouseMoved(java.awt.event.MouseEvent evt) {
jBtn9MouseMoved(evt);
}
});

jBtn1.setText("1");
jBtn1.addMouseListener(new java.awt.event.MouseAdapter() {
public void mouseClicked(java.awt.event.MouseEvent evt) {
MouseClick(evt);
}
});

jBtn2.setText("2");
jBtn2.addMouseListener(new java.awt.event.MouseAdapter() {
public void mouseClicked(java.awt.event.MouseEvent evt) {
MouseClick(evt);
}
});

jBtn3.setText("3");
jBtn3.addMouseListener(new java.awt.event.MouseAdapter() {
public void mouseClicked(java.awt.event.MouseEvent evt) {
MouseClick(evt);
}
});

jBtn4.setText("4");
jBtn4.addMouseListener(new java.awt.event.MouseAdapter() {
public void mouseClicked(java.awt.event.MouseEvent evt) {
MouseClick(evt);
}
});

jBtn5.setText("5");
jBtn5.addMouseListener(new java.awt.event.MouseAdapter() {
public void mouseClicked(java.awt.event.MouseEvent evt) {
MouseClick(evt);
}
});

jBtn6.setText("6");
jBtn6.addMouseListener(new java.awt.event.MouseAdapter() {
public void mouseClicked(java.awt.event.MouseEvent evt) {
MouseClick(evt);
}
});

jBtn7.setText("7");
jBtn7.addMouseListener(new java.awt.event.MouseAdapter() {
public void mouseClicked(java.awt.event.MouseEvent evt) {
MouseClick(evt);
}
});

jBtn8.setText("8");
jBtn8.addMouseListener(new java.awt.event.MouseAdapter() {
public void mouseClicked(java.awt.event.MouseEvent evt) {
MouseClick(evt);
}
});

jBtn0.setText("0");
jBtn0.addMouseListener(new java.awt.event.MouseAdapter() {
public void mouseClicked(java.awt.event.MouseEvent evt) {
MouseClick(evt);
}
});

jBtnMinus.setText("-");
jBtnMinus.addMouseListener(new java.awt.event.MouseAdapter() {
public void mouseClicked(java.awt.event.MouseEvent evt) {
operationMouseClick(evt);
}
});

jBtnMultiplay.setText("+");
jBtnMultiplay.addMouseListener(new java.awt.event.MouseAdapter() {
public void mouseClicked(java.awt.event.MouseEvent evt) {
operationMouseClick(evt);
}
});
jBtnMultiplay.addMouseMotionListener(new java.awt.event.MouseMotionAdapter() {
public void mouseMoved(java.awt.event.MouseEvent evt) {
jBtn9MouseMoved(evt);
}
});

jBtnDivide.setText("/");
jBtnDivide.addMouseListener(new java.awt.event.MouseAdapter() {
public void mouseClicked(java.awt.event.MouseEvent evt) {
operationMouseClick(evt);
}
});
jBtnDivide.addMouseMotionListener(new java.awt.event.MouseMotionAdapter() {
public void mouseMoved(java.awt.event.MouseEvent evt) {
jBtn9MouseMoved(evt);
}
});

jBtnEqual.setText("=");
jBtnEqual.addMouseListener(new java.awt.event.MouseAdapter() {
public void mouseClicked(java.awt.event.MouseEvent evt) {
operationMouseClick(evt);
}
});

jBtnBackSpace.setText("BackSpace");
jBtnBackSpace.addMouseMotionListener(new java.awt.event.MouseMotionAdapter() {
public void mouseMoved(java.awt.event.MouseEvent evt) {
jBtn9MouseMoved(evt);
}
});
jBtnBackSpace.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jBtnBackSpaceActionPerformed(evt);
}
});

jBtnClear.setText("c");
jBtnClear.addMouseListener(new java.awt.event.MouseAdapter() {
public void mouseClicked(java.awt.event.MouseEvent evt) {
operationMouseClick(evt);
}
});

jTextField1.setText("0");

jBtn9.setText("9");
jBtn9.addMouseListener(new java.awt.event.MouseAdapter() {
public void mouseClicked(java.awt.event.MouseEvent evt) {
MouseClick(evt);
}
});

javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addContainerGap()
.addComponent(jTextField1, javax.swing.GroupLayout.PREFERRED_SIZE, 370, javax.swing.GroupLayout.PREFERRED_SIZE)
.addContainerGap(31, Short.MAX_VALUE))
.addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
.addContainerGap()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING)
.addGroup(layout.createSequentialGroup()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING)
.addComponent(jBtn7)
.addComponent(jBtn1)
.addComponent(jBtn0))
.addGap(6, 6, 6))
.addGroup(layout.createSequentialGroup()
.addComponent(jBtn4)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)))
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addComponent(jBtn5)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(jBtn6)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(jBtnMinus))
.addGroup(layout.createSequentialGroup()
.addComponent(jBtn8)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(jBtn9)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jBtnPlus)
.addGroup(layout.createSequentialGroup()
.addComponent(jBtnBackSpace)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(jBtnClear))
.addComponent(jBtnDivide)))
.addGroup(layout.createSequentialGroup()
.addComponent(jBtn2)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(jBtn3)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jBtnEqual)
.addComponent(jBtnMultiplay))))
.addGap(465, 465, 465))
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addContainerGap()
.addComponent(jTextField1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(6, 6, 6)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 43, Short.MAX_VALUE)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jBtn7)
.addComponent(jBtn8)
.addComponent(jBtn9))
.addGap(15, 15, 15))
.addGroup(layout.createSequentialGroup()
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jBtnBackSpace)
.addComponent(jBtnClear))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addComponent(jBtnDivide)
.addGap(1, 1, 1)
.addComponent(jBtnPlus)))
.addGap(14, 14, 14)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jBtn5)
.addComponent(jBtn4)
.addComponent(jBtn6)
.addComponent(jBtnMinus))
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGap(40, 40, 40)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jBtn1)
.addComponent(jBtn2)
.addComponent(jBtn3))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(jBtn0))
.addGroup(layout.createSequentialGroup()
.addGap(18, 18, 18)
.addComponent(jBtnMultiplay)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addComponent(jBtnEqual)))
.addGap(86, 86, 86))
);

java.awt.Dimension screenSize = java.awt.Toolkit.getDefaultToolkit().getScreenSize();
setBounds((screenSize.width-419)/2, (screenSize.height-367)/2, 419, 367);
}// </editor-fold>//GEN-END:initComponents

private void jBtn9MouseMoved(java.awt.event.MouseEvent evt) {//GEN-FIRST:event_jBtn9MouseMoved
// TODO add your handling code here:
}//GEN-LAST:event_jBtn9MouseMoved

private void MouseClick(java.awt.event.MouseEvent evt) {//GEN-FIRST:event_MouseClick
// TODO add your handling code here:
JButton jbtn = (JButton) evt.getSource();
if (jTextField1.getText().equals("0")) {
jTextField1.setText("");
}
if (step != 0) {
jTextField1.setText("");
step = 0;
}
jTextField1.setText(jTextField1.getText() + jbtn.getText());

}//GEN-LAST:event_MouseClick
public void saveInputNumber(char opOld) {
if (opOld == '+') {
inputNumber = inputNumber + Integer.valueOf(jTextField1.getText());
jTextField1.setText("" + inputNumber);
opOld = '!';

} else if (opOld == '-') {
inputNumber = inputNumber - Integer.valueOf(jTextField1.getText());
jTextField1.setText("" + inputNumber);
opOld = '!';

} else if (opOld == '*') {
inputNumber = inputNumber * Integer.valueOf(jTextField1.getText());
jTextField1.setText("" + inputNumber);
opOld = '!';

} else if (opOld == '/') {
inputNumber = inputNumber / Integer.valueOf(jTextField1.getText());
jTextField1.setText("" + inputNumber);
opOld = '!';

} else {
inputNumber = Integer.valueOf(jTextField1.getText());

}
step += 1;

}
private void jBtnBackSpaceActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jBtnBackSpaceActionPerformed
// TODO add your handling code here:
}//GEN-LAST:event_jBtnBackSpaceActionPerformed
char opOld = '!';
char op = '!';
int inputNumber = 0;
int step = 0;
private void operationMouseClick(java.awt.event.MouseEvent evt) {//GEN-FIRST:event_operationMouseClick
// TODO add your handling code here:
JButton jbtn = (JButton) evt.getSource();
String opString = jbtn.getText();

opOld = op;
op = opString.charAt(0);

switch (op) {
case '/':
saveInputNumber(opOld);
break;
case '*':
saveInputNumber(opOld);
break;
case '+':
saveInputNumber(opOld);
break;
case '-':
saveInputNumber(opOld);
break;
case '=':
saveInputNumber(opOld);
break;
case 'c':
inputNumber = 0;
opOld = '!';
op = '!';
step = 0;
jTextField1.setText("0");

break;
}

}//GEN-LAST:event_operationMouseClick

/**
* @param args the command line arguments
*/
public static void main(String args[]) {
java.awt.EventQueue.invokeLater(new Runnable() {

public void run() {
new CalcJFrame().setVisible(true);
}
});
}
// Variables declaration - do not modify//GEN-BEGIN:variables
private javax.swing.JButton jBtn0;
private javax.swing.JButton jBtn1;
private javax.swing.JButton jBtn2;
private javax.swing.JButton jBtn3;
private javax.swing.JButton jBtn4;
private javax.swing.JButton jBtn5;
private javax.swing.JButton jBtn6;
private javax.swing.JButton jBtn7;
private javax.swing.JButton jBtn8;
private javax.swing.JButton jBtn9;
private javax.swing.JButton jBtnBackSpace;
private javax.swing.JButton jBtnClear;
private javax.swing.JButton jBtnDivide;
private javax.swing.JButton jBtnEqual;
private javax.swing.JButton jBtnMinus;
private javax.swing.JButton jBtnMultiplay;
private javax.swing.JButton jBtnPlus;
private javax.swing.JTextField jTextField1;
// End of variables declaration//GEN-END:variables
}

Original post blogged on nvware.

TextClock - Timer -JProgressBar

admin — Sun, 02 May 2010 05:04:02 +0000

TextClock.java

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

import java.util.Calendar; // only need this one class

/// TextClock
/**
*
* @author nvware user
*/

public class TextClock {

// start main
public static void main(String[] args) {
JFrame clock = new TextClockWindow();
clock.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
clock.setVisible(true);
}//end main
}//endclass TextClock

////// TextClockWindow
class TextClockWindow extends JFrame {

//instance variables
private JTextField timeField1; // set by timer listener
private JTextField timeField2; // set by timer listener
private JProgressBar progressBar;

//constructor
public TextClockWindow() {
// Build the GUI - only one panel
timeField1 = new JTextField(16);
timeField1.setFont(new Font("sansserif", Font.PLAIN,28));
timeField2 = new JTextField(16);
timeField2.setFont(new Font("sansserif", Font.PLAIN,28));
progressBar = new JProgressBar();

Container content = this.getContentPane();
content.setLayout(new FlowLayout());
content.add(timeField1);
content.add(timeField2);
content.add(progressBar);

this.setTitle("Text Clock");
this.pack();

// Create a 1-second timer and action listener for it.
// Specify package because there are two Timer classes
// javax.swing.Timer t = new javax.swing.Timer(5,new MyActionListener(timeField));

Timer t = new Timer(10,null);
t.addActionListener(
new ActionListener() {
public void actionPerformed(ActionEvent e) {
Calendar now = Calendar.getInstance();
int h = now.get(Calendar.HOUR_OF_DAY);
int m = now.get(Calendar.MINUTE);
int s = now.get(Calendar.SECOND);
timeField1.setText("" + h + ":" + m + ":" + s);
}
});

t.addActionListener(new MyActionListener(timeField2));
t.addActionListener(new JProgressBarActionListener(progressBar));
t.start(); // Start the timer

}//end constructor
}//endclass TextClockWindow

class MyActionListener implements ActionListener {

private JTextField timeField;

public MyActionListener(JTextField t) {
timeField = t;
}

public void actionPerformed(ActionEvent e) {
Calendar now = Calendar.getInstance();
int h = now.get(Calendar.HOUR_OF_DAY);
int m = now.get(Calendar.MINUTE);
int s = now.get(Calendar.SECOND);
int ms=now.get(Calendar.MILLISECOND);
timeField.setText("" + h + ":" + m + ":" + s+":"+ms);
}
}
class JProgressBarActionListener implements ActionListener {

private JProgressBar progressBar;

public JProgressBarActionListener(JProgressBar progressBar1) {
this.progressBar =progressBar1 ;
}

public void actionPerformed(ActionEvent e) {
progressBar.setValue( progressBar.getValue()+1);
if(progressBar.getValue()>=progressBar.getMaximum())
((Timer)e.getSource()).stop();
}
}

Original post blogged on nvware.

Simple Paint 1

admin — Sun, 02 May 2010 04:55:01 +0000

GraphicsShowJFrame.java

import java.awt.Color;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Image;
import java.awt.Paint;
import java.awt.Shape;
import javax.swing.JColorChooser;

/**
*
* @author nvware user
*/
public class GraphicsShowJFrame extends javax.swing.JFrame {

/** Creates new form GraphicsShowJFrame */
public GraphicsShowJFrame() {
initComponents();
}

/** This method is called from within the constructor to
* initialize the form.
* WARNING: Do NOT modify this code. The content of this method is
* always regenerated by the Form Editor.
*/
@SuppressWarnings("unchecked")
// <editor-fold defaultstate="collapsed" desc="Generated Code">//GEN-BEGIN:initComponents
private void initComponents() {

jPanel1 = new javax.swing.JPanel();
jBtnColor = new javax.swing.JButton();

setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
setTitle("Graphics Show");

jPanel1.setBackground(new java.awt.Color(255, 255, 255));
jPanel1.addMouseMotionListener(new java.awt.event.MouseMotionAdapter() {
public void mouseMoved(java.awt.event.MouseEvent evt) {
jPanel1MouseMoved(evt);
}
});

javax.swing.GroupLayout jPanel1Layout = new javax.swing.GroupLayout(jPanel1);
jPanel1.setLayout(jPanel1Layout);
jPanel1Layout.setHorizontalGroup(
jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGap(0, 451, Short.MAX_VALUE)
);
jPanel1Layout.setVerticalGroup(
jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGap(0, 354, Short.MAX_VALUE)
);

jBtnColor.setText("Color");
jBtnColor.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jBtnColorActionPerformed(evt);
}
});

javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
.addContainerGap(99, Short.MAX_VALUE)
.addComponent(jPanel1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(57, 57, 57))
.addGroup(layout.createSequentialGroup()
.addGap(20, 20, 20)
.addComponent(jBtnColor)
.addContainerGap(530, Short.MAX_VALUE))
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
.addContainerGap(26, Short.MAX_VALUE)
.addComponent(jBtnColor)
.addGap(18, 18, 18)
.addComponent(jPanel1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(51, 51, 51))
);

pack();
}// </editor-fold>//GEN-END:initComponents
Shape s;
Graphics gPanel;
Image img;
Graphics gImg;

@Override
public void paint(Graphics gFrame) {
super.paint(gFrame);
gPanel.drawImage(img, 0, 0, jPanel1);
}

private void jPanel1MouseMoved(java.awt.event.MouseEvent evt) {//GEN-FIRST:event_jPanel1MouseMoved
// TODO add your handling code here:

if (gPanel == null) {
gPanel = jPanel1.getGraphics();
img = jPanel1.createImage(jPanel1.getWidth(), jPanel1.getHeight());
gImg = img.getGraphics();
gImg.setColor(jPanel1.getBackground());
gImg.fillRect(0, 0, jPanel1.getWidth(), jPanel1.getHeight());

}

int x = evt.getPoint().x;
int y = evt.getPoint().y;

gImg.setColor(color1);
gImg.fillOval(x - 3, y - 3, 6, 6);
gPanel.drawImage(img, 0, 0, jPanel1);
//g.setColor(jColorChooser1.getColor());

}//GEN-LAST:event_jPanel1MouseMoved
JColorChooser jColorChooser1 = new JColorChooser();
Color color1 = Color.black;
private void jBtnColorActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jBtnColorActionPerformed
color1 = jColorChooser1.showDialog(rootPane, "Color Chooser", color1);
}//GEN-LAST:event_jBtnColorActionPerformed

/**
* @param args the command line arguments
*/
public static void main(String args[]) {
java.awt.EventQueue.invokeLater(new Runnable() {

public void run() {
new GraphicsShowJFrame().setVisible(true);
}
});
}
// Variables declaration - do not modify//GEN-BEGIN:variables
private javax.swing.JButton jBtnColor;
private javax.swing.JPanel jPanel1;
// End of variables declaration//GEN-END:variables
}

Original post blogged on nvware.