Sunday, October 16, 2011

Java Arithmatic Operation without Operator



ArithmeticOperation.java
import java.awt.EventQueue;
import java.math.BigDecimal;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.border.EmptyBorder;
import javax.swing.JLabel;
import javax.swing.JTextField;
import javax.swing.JOptionPane;
import javax.swing.SwingConstants;
import javax.swing.JButton;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;

public class ArithmeticOperation extends JFrame {

    private JPanel contentPane;
    private JTextField text_fno;
    private JTextField text_sno;
    private JTextField text_ans;

    /**
     * Launch the application.
     */
    public static void main(String[] args) {
        EventQueue.invokeLater(new Runnable() {
            public void run() {
                try {
                    ArithmeticOperation frame = new ArithmeticOperation();
                    frame.setVisible(true);
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }
        });
    }

    /**
     * Create the frame.
     */
    public ArithmeticOperation() {
        setTitle("Arithmetic Opertion");
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        setBounds(100, 100, 520, 300);
        contentPane = new JPanel();
        contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
        setContentPane(contentPane);
        contentPane.setLayout(null);
       
        JPanel panel_arithmetic = new JPanel();
        panel_arithmetic.setBounds(40, 24, 417, 227);
        contentPane.add(panel_arithmetic);
       
        JLabel lblEnterNo = new JLabel("Enter No :-");
        lblEnterNo.setBounds(10, 29, 61, 14);
        lblEnterNo.setHorizontalAlignment(SwingConstants.RIGHT);
       
        JLabel label = new JLabel("Enter No :-");
        label.setBounds(10, 81, 61, 14);
        label.setHorizontalAlignment(SwingConstants.RIGHT);
       
        text_fno = new JTextField();
        text_fno.setBounds(75, 26, 86, 20);
        text_fno.setColumns(10);
       
        text_sno = new JTextField();
        text_sno.setBounds(75, 78, 86, 20);
        text_sno.setColumns(10);
       
        text_ans = new JTextField();
        text_ans.setBounds(75, 125, 86, 20);
        text_ans.setColumns(10);
       
        JLabel lblAnswer = new JLabel("Answer :-");
        lblAnswer.setBounds(10, 128, 61, 14);
        lblAnswer.setHorizontalAlignment(SwingConstants.RIGHT);
       
        JButton btnAdditon = new JButton("Additon");
        btnAdditon.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e)
            {
                BigDecimal fno=new BigDecimal(text_fno.getText());
                BigDecimal sno=new BigDecimal(text_sno.getText());
               
                try
                {
                    BigDecimal ans=addition(fno, sno);
                    text_ans.setText(ans.toString());
                } catch (Exception e2) {
                    // TODO: handle exception
                    JOptionPane.showMessageDialog(contentPane, "Error In Arithmetic Operation","Error",JOptionPane.ERROR_MESSAGE);
                }
               
               
            }
        });
        btnAdditon.setBounds(216, 25, 115, 23);
       
        JButton btnSubstraction = new JButton("Substraction");
        btnSubstraction.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e)
            {
                BigDecimal fno=new BigDecimal(text_fno.getText());
                BigDecimal sno=new BigDecimal(text_sno.getText());
               
                try
                {
                    BigDecimal ans=substraction(fno, sno);
                    text_ans.setText(ans.toString());
                } catch (Exception e2) {
                    // TODO: handle exception
                    JOptionPane.showMessageDialog(contentPane, "Error In Arithmetic Operation","Error",JOptionPane.ERROR_MESSAGE);
                }
            }
        });
        btnSubstraction.setBounds(216, 59, 115, 23);
       
        JButton btnMutltiplication = new JButton("Mutltiplication");
        btnMutltiplication.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e)
            {

                BigDecimal fno=new BigDecimal(text_fno.getText());
                BigDecimal sno=new BigDecimal(text_sno.getText());
               
                try
                {
                    BigDecimal ans=multiplication(fno, sno);
                    text_ans.setText(ans.toString());
                } catch (Exception e2) {
                    // TODO: handle exception
                    JOptionPane.showMessageDialog(contentPane, "Error In Arithmetic Operation","Error",JOptionPane.ERROR_MESSAGE);
                }
           
            }
        });
        btnMutltiplication.setBounds(216, 93, 115, 23);
       
        JButton btnDivison = new JButton("Divison");
        btnDivison.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e)
            {


                BigDecimal fno=new BigDecimal(text_fno.getText());
                BigDecimal sno=new BigDecimal(text_sno.getText());
               
                try
                {
                    BigDecimal ans=division(fno, sno);
                    text_ans.setText(ans.toString());
                }
                catch (ArithmeticException e2)
                {
                    // TODO: handle exception
                    JOptionPane.showMessageDialog(contentPane, "Error In Arithmetic Operation","Error",JOptionPane.ERROR_MESSAGE);
                }
                catch (Exception e2) {
                    // TODO: handle exception
                    JOptionPane.showMessageDialog(contentPane, "Error In Arithmetic Operation","Error",JOptionPane.ERROR_MESSAGE);
                }
           
           
            }
        });
        btnDivison.setBounds(216, 128, 115, 23);
        panel_arithmetic.setLayout(null);
        panel_arithmetic.add(lblEnterNo);
        panel_arithmetic.add(text_fno);
        panel_arithmetic.add(btnAdditon);
        panel_arithmetic.add(label);
        panel_arithmetic.add(text_sno);
        panel_arithmetic.add(btnSubstraction);
        panel_arithmetic.add(btnDivison);
        panel_arithmetic.add(lblAnswer);
        panel_arithmetic.add(text_ans);
        panel_arithmetic.add(btnMutltiplication);
    }
   
    public BigDecimal addition(BigDecimal fno,BigDecimal sno)
    {
        return fno.add(sno);
    }
   
    public BigDecimal substraction(BigDecimal fno,BigDecimal sno)
    {
        return fno.subtract(sno);
    }
   
    public BigDecimal multiplication(BigDecimal fno,BigDecimal sno)
    {
        return fno.multiply(sno);
    }
    public BigDecimal division(BigDecimal fno,BigDecimal sno)
    {
        return fno.divide(sno);
    }
}

Friday, October 14, 2011

Java Google Translator Using Swing


MyTranslator.java
import java.awt.EventQueue;
import java.lang.reflect.Field;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.border.EmptyBorder;
import javax.swing.GroupLayout;
import javax.swing.GroupLayout.Alignment;
import javax.swing.JComboBox;
import javax.swing.JOptionPane;

import com.google.api.translate.Language;
import com.google.api.translate.Translate;
import javax.swing.JLabel;
import javax.swing.JTextArea;
import javax.swing.JButton;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;


public class MyTranslator extends JFrame {

private JPanel contentPane;
JComboBox combo_from;
JComboBox combo_to;
Class myClass;
private JLabel lblTo;
JTextArea text_to;


JTextArea text_from;
private JLabel lblLanguage;

/**
* Launch the application.
*/
public static void main(String[] args) {
EventQueue.invokeLater(new Runnable() {
public void run() {
try
{
MyTranslator frame = new MyTranslator();
frame.setVisible(true);
} catch (Exception e) {
e.printStackTrace();
}
}
});
}

/**
* Create the frame.
* @throws ClassNotFoundException
*/
public MyTranslator() throws ClassNotFoundException
{
Translate.setHttpReferrer("translate.google.com");

setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setBounds(100, 100, 487, 261);
contentPane = new JPanel();

contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
setContentPane(contentPane);
this.setTitle("Google Translator..");
combo_to= new JComboBox();
combo_from= new JComboBox();

//load language class for language list
myClass=Class.forName("com.google.api.translate.Language");
Field[] f=myClass.getFields();combo_to.addItem("--Select--");
combo_from.addItem("--Select--");
for (int i = 0; i < f.length; i++) { combo_to.addItem(f[i].getName()); combo_from.addItem(f[i].getName()); } lblTo = new JLabel("TO"); text_to= new JTextArea(); JButton btn_translate = new JButton("TRANSLATE"); btn_translate.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { try { String translation=Translate.execute(text_to.getText(),Language.valueOf(combo_to.getSelectedItem().toString()),Language.valueOf(combo_from.getSelectedItem().toString())); text_from.setText(translation); } catch (Exception e1) { // TODO Auto-generated catch block //e1.printStackTrace(); JOptionPane.showMessageDialog(contentPane,"Error In Language Translation...","Error",JOptionPane.ERROR_MESSAGE); //JOptionPane.showMessageDialog(, message, title, messageType) } } }); text_from= new JTextArea(); lblLanguage = new JLabel("Language :-"); GroupLayout gl_contentPane = new GroupLayout(contentPane); gl_contentPane.setHorizontalGroup( gl_contentPane.createParallelGroup(Alignment.LEADING) .addGroup(gl_contentPane.createSequentialGroup() .addGroup(gl_contentPane.createParallelGroup(Alignment.LEADING) .addGroup(gl_contentPane.createSequentialGroup() .addContainerGap() .addComponent(lblLanguage) .addGap(24) .addComponent(combo_to, GroupLayout.PREFERRED_SIZE, 91, GroupLayout.PREFERRED_SIZE) .addGap(18) .addComponent(lblTo)) .addGroup(gl_contentPane.createSequentialGroup() .addGap(20) .addComponent(text_to, GroupLayout.PREFERRED_SIZE, 187, GroupLayout.PREFERRED_SIZE))) .addGroup(gl_contentPane.createParallelGroup(Alignment.LEADING) .addGroup(gl_contentPane.createSequentialGroup() .addGap(14) .addComponent(combo_from, GroupLayout.PREFERRED_SIZE, 91, GroupLayout.PREFERRED_SIZE) .addGap(18) .addComponent(btn_translate)) .addGroup(gl_contentPane.createSequentialGroup() .addGap(30) .addComponent(text_from, GroupLayout.PREFERRED_SIZE, 179, GroupLayout.PREFERRED_SIZE))) .addGap(32)) ); gl_contentPane.setVerticalGroup( gl_contentPane.createParallelGroup(Alignment.LEADING) .addGroup(gl_contentPane.createSequentialGroup() .addGap(12) .addGroup(gl_contentPane.createParallelGroup(Alignment.BASELINE) .addComponent(combo_to, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE) .addComponent(lblTo) .addComponent(combo_from, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE) .addComponent(btn_translate) .addComponent(lblLanguage)) .addGap(37) .addGroup(gl_contentPane.createParallelGroup(Alignment.LEADING) .addGroup(gl_contentPane.createSequentialGroup() .addGap(5) .addComponent(text_from, GroupLayout.DEFAULT_SIZE, 125, Short.MAX_VALUE)) .addComponent(text_to, GroupLayout.DEFAULT_SIZE, 130, Short.MAX_VALUE)) .addContainerGap()) ); contentPane.setLayout(gl_contentPane); } }



Note :- This Program Required google-api-translate-java-0.95.jar but some language translation are not possible...

Monday, October 10, 2011

OOP Concept in Java

Definition of Class: - Classes are the fundamental building blocks of a Java program. which contain the data member and member function

Definition of Object:- Objects are key to understanding object-oriented technology. object are connect to the real world. every object have to characteristic. they have state and behavior. An object stores its state in fields and exposes its behavior through methods (Object are the instance of the class)

Definition of Inheritance:- inheritance is the process by which object of  one class  acquire the property of object of another class.

Definition of Polymorphism:- polymorphism means ability to take more than in one form.

Definition of Encapsulation:- The Wrapping up of data and method into the single unit is known as encapsulation.

Definition of Abstraction:- Abstraction in Java allows the user to hide non-essential details relevant to user. It allows only to show the essential features of the object to the end user.