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import javax.microedition.io.*;
import java.util.*;
import java.io.*;
 
import javax.microedition.lcdui.*;
import javax.microedition.midlet.*;
 
import org.ksoap2.*;
import org.ksoap2.serialization.*;
import org.ksoap2.transport.*;
import org.kxml2.kdom.*;
 
import samples.Calculator;
 
public class CalculatorMIDlet extends MIDlet implements CommandListener, Runnable
{
    Form mainForm = new Form("Calculator");
    TextField tFieldA = new TextField("A=", "1", 5, TextField.NUMERIC);
    TextField tFieldB = new TextField("B=", "2", 5, TextField.NUMERIC);
    StringItem resultItem = new StringItem("Result", "");
    Command getCommand = new Command("Add", Command.SCREEN, 1);
 
    Calculator tCalcService = new Calculator();
 
    public CalculatorMIDlet()
    {
        mainForm.append(tFieldA);
        mainForm.append(tFieldB);
        mainForm.append(resultItem);
        mainForm.addCommand(getCommand);
        mainForm.setCommandListener(this);
    }
 
    public void startApp()
    {
        Display.getDisplay(this).setCurrent(mainForm);
    }
 
    public void pauseApp()
    {
    }
 
    public void destroyApp(boolean unconditional)
    {
    }
 
    public void run()
    {
      try
      {
        int nA = Integer.parseInt(tFieldA.getString());
        int nB = Integer.parseInt(tFieldB.getString());
 
        int nResult = tCalcService.Add(nA, nB);
 
        resultItem.setText(Integer.toString(nResult));
      }
      catch (Exception e)
      {
        e.printStackTrace();
        resultItem.setLabel("Error:");
        resultItem.setText(e.toString());
      }
    }
 
    public void commandAction(Command c, Displayable d)
    {
      new Thread(this).start();
    }
}

Main.java:15: error: class CalculatorMIDlet is public, should be declared in a file named CalculatorMIDlet.java
public class CalculatorMIDlet extends MIDlet implements CommandListener, Runnable
       ^
Main.java:1: error: package javax.microedition.io does not exist
import javax.microedition.io.*;
^
Main.java:5: error: package javax.microedition.lcdui does not exist
import javax.microedition.lcdui.*;
^
Main.java:6: error: package javax.microedition.midlet does not exist
import javax.microedition.midlet.*;
^
Main.java:8: error: package org.ksoap2 does not exist
import org.ksoap2.*;
^
Main.java:9: error: package org.ksoap2.serialization does not exist
import org.ksoap2.serialization.*;
^
Main.java:10: error: package org.ksoap2.transport does not exist
import org.ksoap2.transport.*;
^
Main.java:11: error: package org.kxml2.kdom does not exist
import org.kxml2.kdom.*;
^
Main.java:13: error: package samples does not exist
import samples.Calculator;
              ^
Main.java:15: error: cannot find symbol
public class CalculatorMIDlet extends MIDlet implements CommandListener, Runnable
                                      ^
  symbol: class MIDlet
Main.java:15: error: cannot find symbol
public class CalculatorMIDlet extends MIDlet implements CommandListener, Runnable
                                                        ^
  symbol: class CommandListener
Main.java:17: error: cannot find symbol
    Form mainForm = new Form("Calculator");
    ^
  symbol:   class Form
  location: class CalculatorMIDlet
Main.java:18: error: cannot find symbol
    TextField tFieldA = new TextField("A=", "1", 5, TextField.NUMERIC);
    ^
  symbol:   class TextField
  location: class CalculatorMIDlet
Main.java:19: error: cannot find symbol
    TextField tFieldB = new TextField("B=", "2", 5, TextField.NUMERIC);
    ^
  symbol:   class TextField
  location: class CalculatorMIDlet
Main.java:20: error: cannot find symbol
    StringItem resultItem = new StringItem("Result", "");
    ^
  symbol:   class StringItem
  location: class CalculatorMIDlet
Main.java:21: error: cannot find symbol
    Command getCommand = new Command("Add", Command.SCREEN, 1);
    ^
  symbol:   class Command
  location: class CalculatorMIDlet
Main.java:23: error: cannot find symbol
    Calculator tCalcService = new Calculator();
    ^
  symbol:   class Calculator
  location: class CalculatorMIDlet
Main.java:66: error: cannot find symbol
    public void commandAction(Command c, Displayable d)
                              ^
  symbol:   class Command
  location: class CalculatorMIDlet
Main.java:66: error: cannot find symbol
    public void commandAction(Command c, Displayable d)
                                         ^
  symbol:   class Displayable
  location: class CalculatorMIDlet
Main.java:17: error: cannot find symbol
    Form mainForm = new Form("Calculator");
                        ^
  symbol:   class Form
  location: class CalculatorMIDlet
Main.java:18: error: cannot find symbol
    TextField tFieldA = new TextField("A=", "1", 5, TextField.NUMERIC);
                            ^
  symbol:   class TextField
  location: class CalculatorMIDlet
Main.java:18: error: cannot find symbol
    TextField tFieldA = new TextField("A=", "1", 5, TextField.NUMERIC);
                                                    ^
  symbol:   variable TextField
  location: class CalculatorMIDlet
Main.java:19: error: cannot find symbol
    TextField tFieldB = new TextField("B=", "2", 5, TextField.NUMERIC);
                            ^
  symbol:   class TextField
  location: class CalculatorMIDlet
Main.java:19: error: cannot find symbol
    TextField tFieldB = new TextField("B=", "2", 5, TextField.NUMERIC);
                                                    ^
  symbol:   variable TextField
  location: class CalculatorMIDlet
Main.java:20: error: cannot find symbol
    StringItem resultItem = new StringItem("Result", "");
                                ^
  symbol:   class StringItem
  location: class CalculatorMIDlet
Main.java:21: error: cannot find symbol
    Command getCommand = new Command("Add", Command.SCREEN, 1);
                             ^
  symbol:   class Command
  location: class CalculatorMIDlet
Main.java:21: error: cannot find symbol
    Command getCommand = new Command("Add", Command.SCREEN, 1);
                                            ^
  symbol:   variable Command
  location: class CalculatorMIDlet
Main.java:23: error: cannot find symbol
    Calculator tCalcService = new Calculator();
                                  ^
  symbol:   class Calculator
  location: class CalculatorMIDlet
Main.java:36: error: cannot find symbol
        Display.getDisplay(this).setCurrent(mainForm);
        ^
  symbol:   variable Display
  location: class CalculatorMIDlet
29 errors

Standard output is empty