learning java network from Sun's Java tutorial
Dear all,
I am learning networking, and I copy and paste the code from java tutorial website to netbean and try to run it. However, there is error coming out. Could anyone please tell me what is the error? thanks
init:
deps-jar:
compile-single:
run-single:
java.lang.NoClassDefFoundError: javanetwork/EchoClient (wrong name: JavaNetwork/EchoClient)
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:620)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:260)
at java.net.URLClassLoader.access$000(URLClassLoader.java:56)
at java.net.URLClassLoader$1.run(URLClassLoader.java:195)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:276)
at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
Exception in thread "main"
Java Result: 1
BUILD SUCCESSFUL (total time: 0 seconds)
copy from
http://java.sun.com/docs/books/tutorial/networking/sockets/readingWriting.html
import java.io.*;
import java.net.*;
publicclass EchoClient{
publicstaticvoid main(String[] args)throws IOException{
Socket echoSocket =null;
PrintWriter out =null;
BufferedReader in =null;
try{
echoSocket =new Socket("taranis", 7);
out =new PrintWriter(echoSocket.getOutputStream(),true);
in =new BufferedReader(new InputStreamReader(
echoSocket.getInputStream()));
}catch (UnknownHostException e){
System.err.println("Don't know about host: taranis.");
System.exit(1);
}catch (IOException e){
System.err.println("Couldn't get I/O for "
+"the connection to: taranis.");
System.exit(1);
}
BufferedReader stdIn =new BufferedReader(
new InputStreamReader(System.in));
String userInput;
while ((userInput = stdIn.readLine()) !=null){
out.println(userInput);
System.out.println("echo: " + in.readLine());
}
out.close();
in.close();
stdIn.close();
echoSocket.close();
}
}
