Đọc truyện decuongj2me

decuongj2me

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Chiều cao dòng

1.Thập phân sang nhị phân 2

2.Gui len 1 so neu so do la so nguyen thi cho phep dang ky con k thi bao loi 5(9%)

3.Máy tính 8(19%)

4.Giải phương trình 11(29%)

5Nhị phân sang thập phân 14(40%)

6.CHƯƠNG TRÌNH KIỂM TRA SỐ NGUYÊN TỐ18(54%)

7.CHƯƠNG TRÌNH PHẦN BLUTOOTH 22(66%)

8.Sắp xếp từ bé đến lớn 27(82%)

9.Chuyển từ hoa sang thường 31(90%)

1.Thập phân sang nhị phân

sevlet

import java.io.IOException;

import java.io.PrintWriter;

import javax.servlet.ServletException;

import javax.servlet.annotation.WebServlet;

import javax.servlet.http.HttpServlet;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

protected void doGet (HttpServletRequest request, HttpServletResponse response)

throws ServletException, IOException {

PrintWriter out=response.getWriter();

String t3=request.getParameter("so");

int so=0;

so=Integer.parseInt(t3);

String so_doi=Integer.toBinaryString(so);

out.print(so_doi);

}

////////////////////////////////////////////////////////////////////////////////////////////////////////////////

client

package hac;

import javax.microedition.midlet.*;

import java.io.*;

import javax.microedition.lcdui.*;

import javax.microedition.io.Connector;

import javax.microedition.io.HttpConnection;

public class Midlet extends MIDlet implements Runnable, CommandListener{

HttpConnection con;

Thread dk,dn;

Form fr;

Display di;

TextField t1;

StringItem st;

Command c1,c2;

InputStream in;

public void startApp() {

di=Display.getDisplay(this);

fr=new Form("Tuyen");

t1=new TextField("nhapso","",10,TextField.ANY);

c1=new Command("Send",Command.OK,1);

c2=new Command("Exit",Command.EXIT,1);

st=new StringItem("","");

fr.append(st);

fr.append(t1);

fr.addCommand(c1);

fr.addCommand(c2);

fr.setCommandListener(this);

di.setCurrent(fr);

}

public void pauseApp() {

}

public void destroyApp(boolean unconditional) {

}

public void commandAction(Command c, Displayable d) {

if(c==c1){

dk=new Thread(this);

dk.start(); }

if(c==c2)this.notifyDestroyed();

}

public void run(){

try{

String url,t3,t4;

t3=t1.getString();

+t3;

con=(HttpConnection)Connector.open(url);

con.setRequestMethod(HttpConnection.GET);

ByteArrayOutputStream data=new ByteArrayOutputStream();

in=con.openInputStream();

int ch;

while((ch=in.read())!=-1)

{data.write(ch);}

byte b[]=data.toByteArray();

String s=new String(b);

st.setText("ket qua:"+s);

}catch(Exception e){}

}

2.Gui len 1 so neu so do la so nguyen thi cho phep dang ky con k thi bao loi

* Server

import java.io.IOException;

import java.io.PrintWriter;

import javax.servlet.ServletException;

import javax.servlet.annotation.WebServlet;

import javax.servlet.http.HttpServlet;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

public class NewServlet extends HttpServlet {

protected void doGet (HttpServletRequest request, HttpServletResponse response)

throws ServletException, IOException {

PrintWriter out=response.getWriter();

String t3=request.getParameter("so");

int so= Integer.parseInt(t3);

int d=0;

for(int i=2;i<=so/2;i++)

if(so%i==0)d++;

if(d==0)

out.print("ok");

}

/////////////////////////////////////////////////////////////////////////////////////////////////////////

* Client

package hac;

import javax.microedition.midlet.*;

import java.io.*;

import javax.microedition.lcdui.*;

import javax.microedition.io.Connector;

import javax.microedition.io.HttpConnection;

public class Midlet extends MIDlet implements Runnable, CommandListener{

HttpConnection con;

Thread dk;

Form fr,f1;

Display di;

TextField t1,t2,t3;

StringItem st;

Command c1,c2,c3;

InputStream in;

public void startApp() {

di=Display.getDisplay(this);

fr=new Form("Tuyen");

t1=new TextField("nhapso","",10,TextField.NUMERIC);

c1=new Command("Send",Command.OK,1);

c2=new Command("Exit",Command.EXIT,1);

st=new StringItem("","");

fr.append(st);

fr.append(t1);

fr.addCommand(c1);

fr.addCommand(c2);

fr.setCommandListener(this);

di.setCurrent(fr);

f1=new Form("Dangky");

t2=new TextField("User","",10,TextField.ANY);

t3=new TextField("Pass","",10,TextField.PASSWORD);

c3=new Command("Dangky",Command.OK,1);

f1.addCommand(c3);

f1.addCommand(c2);

f1.append(t3);

f1.append(t2);

f1.setCommandListener(this);

}

public void pauseApp() {

}

public void destroyApp(boolean unconditional) {

}

public void commandAction(Command c, Displayable d) {

if(c==c1){

dk=new Thread(this);

dk.start(); }

if(c==c3){st.setText("Hello")}

if(c==c2)this.notifyDestroyed();

}

public void run(){

try{

String url,t3,t4;

t3=t1.getString();

+t3;

con=(HttpConnection)Connector.open(url);

con.setRequestMethod(HttpConnection.GET);

ByteArrayOutputStream data=new ByteArrayOutputStream();

in=con.openInputStream();

int ch;

while((ch=in.read())!=-1)

{data.write(ch);}

byte b[]=data.toByteArray();

String s=new String(b);

if(s.equals("ok")){di.setCurrent(f1);

}

else

st.setText("xin loi ban qua den");

}catch(Exception e){}

}

3.Máy tính

sevlet

import java.io.*;

import java.io.PrintWriter;

import javax.servlet.ServletException;

import javax.servlet.annotation.WebServlet;

import javax.servlet.http.HttpServlet;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

import java.lang.*;

public class NewServlet extends HttpServlet {

protected void doGet (HttpServletRequest request, HttpServletResponse response)

throws ServletException, IOException {

PrintWriter out=response.getWriter();

String t1=request.getParameter("a");

String t2=request.getParameter("b");

String t3=request.getParameter("c");

int a=Integer.parseInt(t1);

int b=Integer.parseInt(t2);

String c=String.valueOf(t3);

float i;

if(c.equals("+")){i=a+b; out.print(i);}

if(c.equals("-")){i=a-b; out.print(i);}

if(c.equals("x")){i=a*b;out.print(i);}

if(c.equals(":")){i=a/b;out.print(i);}

}

Client

import javax.microedition.midlet.*;

import java.io.*;

import javax.microedition.lcdui.*;

import javax.microedition.io.Connector;

import javax.microedition.io.HttpConnection;

public class Midlet extends MIDlet implements Runnable, CommandListener{

HttpConnection con;

Thread dk;

Form fr;

Display di;

TextField t1,t2,t3;

StringItem st;

Command c1,c2,c3;

InputStream in;

OutputStream out;

String url=null;

public void startApp() {

di=Display.getDisplay(this);

fr=new Form("Tuyen");

t1=new TextField("nhap a:","",10,TextField.NUMERIC);

t2=new TextField("nhap b:","",10,TextField.NUMERIC);

t3=new TextField("nhap pt:","",10,TextField.ANY);

c1=new Command("Send",Command.OK,1);

c2=new Command("Exit",Command.EXIT,2);

st=new StringItem("","");

fr.append(st);

fr.append(t1);

fr.append(t2);

fr.append(t3);

fr.addCommand(c1);

fr.addCommand(c2);

fr.setCommandListener(this);

di.setCurrent(fr);

}

public void pauseApp() {

}

public void destroyApp(boolean unconditional) {

}

public void commandAction(Command c, Displayable d) {

if(c==c1){

dk=new Thread(this);

dk.start(); }

if(c==c2)

this.notifyDestroyed();

}

public void run(){

try{

String url,t6,t4,t5;

int k,n;

t4=t1.getString();

t5=t2.getString();

t6=t3.getString();

k=Integer.parseInt(t4);

n=Integer.parseInt(t5);

String j=String.valueOf(t6);

url="http://localhost:8080/tuyen/NewServlet?a="+t4+"&b="+t5+"&c="+t6;

con=(HttpConnection)Connector.open(url);

con.setRequestMethod(HttpConnection.GET);

ByteArrayOutputStream data=new ByteArrayOutputStream();

in=con.openInputStream();

int ch;

while((ch=in.read())!=-1)

{data.write(ch);}

byte b[]=data.toByteArray();

String s=new String(b);

st.setText(s);

}catch(Exception e){}

}

4.Giải phương trình

Server

import java.io.*;

import java.io.PrintWriter;

import javax.servlet.ServletException;

import javax.servlet.annotation.WebServlet;

import javax.servlet.http.HttpServlet;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

import java.lang.*;

public class NewServlet extends HttpServlet {

protected void doGet (HttpServletRequest request, HttpServletResponse response)

throws ServletException, IOException {

PrintWriter out=response.getWriter();

String t1=request.getParameter("a");

String t2=request.getParameter("b");

String t3=request.getParameter("c");

int a=Integer.parseInt(t1);

int b=Integer.parseInt(t2);

int c=Integer.parseInt(t3);

float del;

del=b*b-4*a*c;

if(del

if(del==0){float n=-b/(2*a); out.print(n);}

if(del>0)

{float n1,n2;

n1=-b+ (float)Math.sqrt(del)/(2*a);

n2=-b- (float)Math.sqrt(del)/(2*a);

out.print(n1);

out.print(n2);

}

/////////////////////////////////////////////////////////////////////////////////////////////////////////

Client

import javax.microedition.midlet.*;

import java.io.*;

import javax.microedition.lcdui.*;

import javax.microedition.io.Connector;

import javax.microedition.io.HttpConnection;

public class Midlet extends MIDlet implements Runnable, CommandListener{

HttpConnection con;

Thread dk;

Form fr,f1;

Display di;

TextField t1,t2,t3;

StringItem st;

Command c1,c2,c3;

InputStream in;

public void startApp() {

di=Display.getDisplay(this);

fr=new Form("Tuyen");

t1=new TextField("nhap a:","",10,TextField.NUMERIC);

t2=new TextField("nhap b:","",10,TextField.NUMERIC);

t3=new TextField("nhap c:","",10,TextField.NUMERIC);

c1=new Command("Send",Command.OK,1);

c2=new Command("Exit",Command.EXIT,1);

st=new StringItem("","");

fr.append(st);

fr.append(t1);

fr.append(t2);

fr.append(t3);

fr.addCommand(c1);

fr.addCommand(c2);

fr.setCommandListener(this);

di.setCurrent(fr);

}

public void pauseApp() {

}

public void destroyApp(boolean unconditional) {

}

public void commandAction(Command c, Displayable d) {

if(c==c1){

dk=new Thread(this);

dk.start(); }

if(c==c2)

this.notifyDestroyed();

}

public void run(){

try{

String url,t6,t4,t5;

int k,n,j;

t4=t1.getString();

t5=t2.getString();

t6=t3.getString();

k=Integer.parseInt(t4);

n=Integer.parseInt(t5);

j=Integer.parseInt(t6);+t4+"&b="+t5+"&c="+t6;

con=(HttpConnection)Connector.open(url);

con.setRequestMethod(HttpConnection.GET);

ByteArrayOutputStream data=new ByteArrayOutputStream();

in=con.openInputStream();

int ch;

while((ch=in.read())!=-1)

{data.write(ch);}

byte b[]=data.toByteArray();

String s=new String(b);

st.setText(s);

}catch(Exception e){}

}

5Nhị phân sang thập phân

client

package nhi_thap;

import java.io.*;

import java. microedition .io.*;

import javax.microedition.io.Connector;

import javax.microedition.io.HttpConnection;

import javax.microedition.lcdui.*;

import javax.microedition.midlet.*;

public class Midlet extends MIDlet implements CommandListener,Runnable{

Display di;

Form f1,f2;

TextField t1;

StringItem it;

Command c1,c2,c3,c4;

Thread th;

HttpConnection con;

InputStream in;

String url=null;

public void startApp() {

di=Display.getDisplay(this);

f1=new Form("nhi sang thap");

t1=new TextField("so nhi phan:","",20,TextField.ANY);

it=new StringItem("","");

f1.append(t1);

f1.append(it);

c1=new Command("connect",Command.OK,1);

c2=new Command("exit",Command.EXIT,2);

c3=new Command("back",Command.BACK,3);

c4=new Command("ok",Command.OK,4);

f1.addCommand(c1);

f1.addCommand(c2);

f1.setCommandListener(this);

}

public void pauseApp() {

di.setCurrent(f1);

}

public void destroyApp(boolean unconditional) {

}

public void connect(){

try{

con=(HttpConnection)Connector.open(url);

con.setRequestMethod(HttpConnection.GET);

}

catch(Exception e){

st.setText("K?t n?i l?i: "+e.getMessage());

}

public void in(){

String;

try{

in=con.openInputStream();

int length=(int)con.getLength();

byte server[];

if(length!=-1){

server=new byte[length];

in.read(server);

str=new String(server);

}

else

{

ByteArrayOutputStream br=new

ByteArrayOutputStream();

int ch;

while((ch=in.read())!=-1)

br.write(ch);

str=new String(br.toByteArray());

br.close();

}

st.setText(str);

}

catch(Exception e){

}

public synchronized void run(){

this.connect();

this.in();

}

public void commandAction(Command c, Displayable d)

{

if(c==c1)

{ +t1.getString()+"";

th=new Thread(this);

th.start();

}

///////////////////////////////////////////////////////////////////////////////////////////////////////

Sevlet

import java.io.IOException;

import java.io.PrintWriter;

import javax.servlet.ServletException;

import javax.servlet.annotation.WebServlet;

import javax.servlet.http.HttpServlet;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

@WebServlet(name = "NewServlet", urlPatterns = {"/NewServlet"})

public class NewServlet extends HttpServlet {

private int s;

private char key;

@Override

protected void doGet(HttpServletRequest request, HttpServletResponse response)

throws ServletException, IOException {

PrintWriter out=response.getWriter();

String t3=request.getParameter("so");

if(key=='1')

{

String st;

st = String.valueOf(t3);

char a;

int temp=0,n=1,sodoi=0;

for(int i=st.length()-1;i>=0;i--)

{

a = st.charAt(i);

temp = (int)a;

temp = temp - 48;

sodoi = sodoi + temp*n;

n=n*2;

}

out.print(sodoi);

}

else if(key=='1')

{

s=Integer.parseInt(t3);

}

String so_doi=Integer.toBinaryString(s);

out.print(so_doi);

}

6.CHƯƠNG TRÌNH KIỂM TRA SỐ NGUYÊN TỐ

· client

import javax.microedition.midlet.*;

import javax.microedition.lcdui.*;

import javax.microedition.io.*;

import java.io.*;

public class songuyento_c extends MIDlet implements CommandListener, Runnable {

Display di;

Form f;

TextField tf;

StringItem si;

Command c1,c2;

HttpConnection con;

InputStream in;

Thread th;

public void startApp() {

di= Display.getDisplay(this);

f= new Form ("so nguyen to");

si= new StringItem ("ket qua: ","");

c1= new Command ("Exit", Command.EXIT,1);

c2= new Command ("Test", Command.OK,1);

tf= new TextField ("Nhap so","", 3, TextField.NUMERIC);

f.append(tf);

f.append(si);

f.addCommand(c1);

f.addCommand(c2);

f.setCommandListener(null);

di.setCurrent(f);

}

public void pauseApp() {

}

public void destroyApp(boolean unconditional) {

}

public void commandAction(Command c, Displayable d) {

if (c==c1){

notifyDestroyed();

}

else

if (c==c2){

th= new Thread(this);

th.start();

}

public void run() {

String t= tf.getString();

int n= Integer.parseInt(t);

String url= "http://localhost:8080/songuyento/songuyento?so="+n;

try{

String;

InputStream in=con.openInputStream();

int length=(int)con.getLength();

byte server[];

if(length!=-1){

server=new byte[length];

in.read(server);

str=new String(server);

}

else

{

ByteArrayOutputStream br=new

ByteArrayOutputStream();

int ch;

while((ch=in.read())!=-1)

br.write(ch);

str=new String(br.toByteArray());

br.close();

}

si.setText(str);

}catch(Exception e)

{

e.getMessage();

}

}}

· server

import java.io.IOException;

import java.io.PrintWriter;

import javax.servlet.ServletException;

import javax.servlet.annotation.WebServlet;

import javax.servlet.http.HttpServlet;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

public class songuyento extends HttpServlet {

protected void doGet(HttpServletRequest request, HttpServletResponse response)

throws ServletException, IOException {

String s= request.getParameter("so");

int n= Integer.parseInt(s);

PrintWriter out= response.getWriter();

int i,kt=0;

for (i=2; i<n;i++){

if (n%i==0){

kt=kt+1;

}

if (kt==0){

out.print("ok");}

else

out.print("not ok");

} }

7.CHƯƠNG TRÌNH PHẦN BLUTOOTH

· Server

import javax.microedition.midlet.*;

import javax.bluetooth.*;

import javax.microedition.lcdui.*;

import java.io.*;

import javax.microedition.io.*;

public class MidletS extends MIDlet implements CommandListener, Runnable {

Display di;Form f;Command c1;LocalDevice ld;

Thread th;StreamConnectionNotifier scn;

StreamConnection sc;OutputStream out;

InputStream in;

UUID id;

String url;

public void startApp() {

di=Display.getDisplay(this);

f=new Form("dfg");

c1=new Command("stop",Command.OK,1);

f.addCommand(c1);

f.setCommandListener(this);

di.setCurrent(f);

th=new Thread(this);

th.start();

}

public void pauseApp() {

}

public void destroyApp(boolean unconditional) {

}

public void commandAction(Command c, Displayable d) {

}

public void run() {

try{

f.append("init Server");

ld=LocalDevice.getLocalDevice();

ld.setDiscoverable(DiscoveryAgent.GIAC);

id=new UUID("123",true);

+id;//+";name=BC;authorize=true";

f.append(url);

scn=(StreamConnectionNotifier)Connector.open(url);

f.append("wating...");

sc=scn.acceptAndOpen();

f.append("connected");

out=sc.openOutputStream();

in=sc.openInputStream();

int len=in.read();

int temp=0;

byte b[]=new byte[len];

while(temp!=len)

{

int k=in.read(b, temp, len-temp);

temp=temp+k;

}

String t=new String(b);

f.append(t);

String t1="hello C";

out.write(t1.length());

out.write(t1.getBytes());

}

catch(Exception e){

System.out.print("

loi "+e.toString());

}

· Client

import javax.microedition.midlet.*;

import javax.bluetooth.*;

import javax.microedition.lcdui.*;

import java.io.*;

import javax.microedition.io.*;

public class MidletC extends MIDlet implements Runnable, DiscoveryListener, CommandListener{

Display di;Form f;Command c1;LocalDevice ld;

Thread th;StreamConnectionNotifier scn;

StreamConnection sc;OutputStream out;

DiscoveryAgent agent;

InputStream in;

UUID id;

String url;

public void startApp() {

di=Display.getDisplay(this);

f=new Form("dfg");

c1=new Command("stop",Command.OK,1);

f.addCommand(c1);

f.setCommandListener(this);

di.setCurrent(f);

th=new Thread(this);

th.start();

}

public void pauseApp() {

}

public void destroyApp(boolean unconditional) {

}

public void run() {

try{

f.append("init client");

ld=LocalDevice.getLocalDevice();

agent=ld.getDiscoveryAgent();

agent.startInquiry(DiscoveryAgent.GIAC, this);

f.append("fidding...");

}

catch(Exception e){

}

public void deviceDiscovered(RemoteDevice rd, DeviceClass dc) {

f.append("device:");

f.append(rd.getBluetoothAddress());

try{

UUID ids[]=new UUID[1];

ids[0]=new UUID("123",true);

agent.searchServices(null, ids, rd, this);

}

catch(Exception e){

System.out.print("dv:"+e.toString());

}

public void inquiryCompleted(int i) {

}

public void serviceSearchCompleted(int i, int i1) {

try{

sc=(StreamConnection)Connector.open(url);

out=sc.openOutputStream();

in=sc.openInputStream();

String t1="hello S";

out.write(t1.length());

out.write(t1.getBytes());

int len=in.read();

int temp=0;

byte b[]=new byte[len];

while(temp!=len)

{

int k=in.read(b, temp, len-temp);

temp=temp+k;

}

String t=new String(b);

f.append(t);

}

catch(Exception e){

System.out.print(e.toString());

}

public void servicesDiscovered(int i, ServiceRecord[] srs) {

url=srs[0].getConnectionURL(ServiceRecord.AUTHENTICATE_ENCRYPT, false);

f.append(url);

}

public void commandAction(Command c, Displayable d) {

}

8.Sắp xếp từ bé đến lớn

//client

import javax.microedition.midlet.*;

import java.io.*;

import javax.microedition.lcdui.*;

import javax.microedition.io.Connector;

import javax.microedition.io.HttpConnection;

public class sxep extends MIDlet implements Runnable,CommandListener {

Display di;

Form f;

TextField tf1;

StringItem it;

HttpConnection con;

InputStream in;

OutputStream out;

String url=null;

Command c1,c2;

Thread th;

public void startApp() {

di=Display.getDisplay(this);

f=new Form ("sapxep");

tf1=new TextField("t1","",20,TextField.NUMERIC);

f.append(tf1);

it=new StringItem ("ket qua:","");

f.append(it);

c1=new Command ("sxep",Command.OK,1);

c2=new Command ("exit",Command.EXIT,2);

f.addCommand(c1);

f.addCommand(c2);

f.setCommandListener(this);

di.setCurrent(f);

}

public void pauseApp() {

}

public void destroyApp(boolean unconditional) {

}

public void commandAction (Command c,Displayable d){

if (c==c2) {this.notifyDestroyed ();}

if (c==c1){

th=new Thread (this);

th.start();

}

public void run(){

try{

String t2;

int k;

t2=tf1.getString();

+t2;

con = (HttpConnection)Connector.open(url);

con.setRequestMethod (HttpConnection.GET);

in=con.openInputStream();

ByteArrayOutputStream data = new ByteArrayOutputStream();

int ch;

while((ch=in.read())!=-1)

{data.write(ch);}

byte b[]=data.toByteArray();

String s=new String(b);

int m=Integer.parseInt(s);

it.setText(String.valueOf(m));

}catch(Exception e){}

}}

//sever

import java.io.IOException;

import java.io.PrintWriter;

import javax.servlet.ServletException;

import javax.servlet.http.HttpServlet;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

public class sxep1 extends HttpServlet {

protected void doGet (HttpServletRequest request, HttpServletResponse response)

throws ServletException, IOException {

PrintWriter out=response.getWriter();

String t3=request.getParameter("t1");

String xau= String.valueOf(t3);

char t;

char []a=xau.toCharArray();

for(int i=0;i<xau.length();i++)

{for(int j=0;j<=i;j++)

{if(a[i]<a[j]){t=a[i];

a[i]=a[j];

a[j]=t;}}

}

out.print(a);

}

9.Chuyển từ hoa sang thường

client

import java.io.*;

import javax.microedition.io.*;

import javax.microedition.midlet.*;

import javax.microedition.lcdui.*;

public class chuyendoixau extends MIDlet implements Runnable,CommandListener{

Display di;

Form f;

TextField tf;

StringItem it;

Command c1,c2;

Thread th;

OutputStream out;

InputStream in;

HttpConnection con;

String url;

public void startApp() {

di=Display.getDisplay(this);

f=new Form("chuyen doi chuoi ky tu");

tf=new TextField("chuoi ky tu:","",20,TextField.NUMERIC);

it=new StringItem("chuoi sau chuyen thanh chu hoa:","");

c1=new Command("EXIT",Command.EXIT,1);

c2=new Command("OK",Command.OK,1);

f.append(tf);

f.append(it);

f.addCommand(c1);

f.addCommand(c2);

f.setCommandListener(this);

di.setCurrent(f);

}

public void pauseApp() {

}

public void destroyApp(boolean unconditional) {

}

public void commandAction(Command c, Displayable d){

if(c==c1)

notifyDestroyed();

else

if(c==c2)

th=new Thread();

th.start();

}

public void run(){

try{

String x;

x=tf.getString();

url="http://localhost:8080/chuyendoixaukytu/chuyendoi?chuoi="+x;

con=(HttpConnection)Connector.open(url);

con.setRequestMethod(HttpConnection.GET);

ByteArrayOutputStream data=new ByteArrayOutputStream();

in=con.openInputStream();

int ch;

while((ch=in.read())!=-1)

data.write(ch);

byte b[]=data.toByteArray();

String st=new String(b);

it.setText(st+tf);

}catch(Exception e){}

}

sevlet

import java.io.*;

import javax.servlet.http.*;

public class Servlet_chuyendoi extends HttpServlet {

protected void doGet(HttpServletRequest req, HttpServletResponse res) throws IOException{

String t1;

PrintWriter out = res.getWriter();

t1=req.getParameter("chuoi:");

if(t1.equals(":"))

t1=t1.substring(2,t1.length());

String t2=t1.toLowerCase(); // từ hoa sang thuờng

out.print(t2);

}

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