How colon works in java

Question

import java.io.*;
import java.net.*;
import java.util.*;
public class tst {
public static void main(String args[])
throws SocketException {
Enumeration<NetworkInterface> nets =
NetworkInterface.getNetworkInterfaces();
for (NetworkInterface netint : Collections.list(nets)) {
displayInterfaceInformation(netint);
private static void displayInterfaceInformation(
NetworkInterface netint) throws SocketException {
System.out.printf(
"Display name: %s%n", netint.getDisplayName());
System.out.printf("Name: %s%n", netint.getName());
Enumeration<InetAddress> inetAddresses =
netint.getInetAddresses();
for (InetAddress inetAddress : Collections.list(
inetAddresses)) {
System.out.printf("InetAddress: %s%n", inetAddress);
System.out.printf("%n");
WHen I am trying to run this program its giving me following error.. can some one help me to solve this problem ??
C:\j2sdk1.4.2_13\bin>javac tst.java
tst.java:11: ';' expected
for (NetworkInterface netint : Collections.list(nets)) {
^
tst.java:14: illegal start of expression
^
tst.java:23: ';' expected
for (InetAddress inetAddress : Collections.list(
^
tst.java:28: illegal start of expression
^
4 errors
C:\j2sdk1.4.2_13\bin>

Answer 1

Thanks.......
However, is it right to say something odd to someone just becuase of she/he doesn not know somethink.....Pointing out that putting anything under /bin is foolish isn't being "odd", it's the truth.
And yes, I dont know everything that is why I am in this forum!! Believe me, that's clear.
but thanks again bcos u r so polite !!!!
Now, can you explain what is path and classpath..You're screwed if you don't know that. Maybe Google can help you, but here's my best effort:
PATH is an environment variable on Windows and *nix operating systems that tells the OS where to look for executable code.  If you have your PATH set to JAVA_HOME/bin, where JAVA_HOME is the directory where you installed Java, the operating system will look there for .exe files when you open a command shell and type "javac" or "java" or "jar".
CLASSPATH is special to Java and the JVM. It tells the JVM where to look for .class files. If you're compiling and running in a command shell, you set it using the -classpath option. Read the tool docs for details.
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