help with my homework plsss

[hunterdoom]

import java.io.*;
import java.util.Date;

public class FileOperations {
public static void main(String[] args) {
//make sure there is one parameter

if (args.length != 1) {
System.err.println("ERROR: must have 1 parameter");
System.exit(1);
}
try {
File f = new File(args[0]);
long d;

System.out.println("getName() =" + f.getName());
System.out.println("getAbsoluteFile().getName() = "
+ f.getAbsoluteFile().getName());
boolean exists = f.exists();
System.out.println("exists() = " + exists);
if (!exists) {
System.exit(1);
}
System.out.println("canRead() =" + f.canRead());
System.out.println("canWrite() =" + f.canWrite());
System.out.println("getPath() =" + f.getPath());
System.out.println("getAbsolutePath() = " + f.getAbsolutePath());
System.out.println("getCanonicalPath() = " + f.getCanonicalPath());
System.out.println("getAbsoluteFile() = " + f.getAbsolutePath());
System.out.println("toURL() = " + f.toURL());
System.out.println("toURI() = " + f.toURI());
System.out.println("getParent() = " + f.getParent());
System.out.println("isAbsolute() = " + f.isAbsolute());
boolean isDirectory = f.isDirectory();
System.out.println("isDirectory() = " + isDirectory);
System.out.println("isFile() = " + f.isFile());
System.out.println("isHidden() = " + f.isHidden());
System.out.println("lastModified() = " + (d =
f.lastModified())
+ " = " + new Date(d));
System.out.println("length() = " + f.length());
if (isDirectory) {
String[] subfiles = f.list();
for (int i=0; i<subfiles.length; i++) {
System.out.println("file in this dir = " +
subfiles[i]);

}
}

}
catch (IOException iox) {
System.err.println(iox);

}
}

}

hi guys can you help why i run i would get a error like this ERROR: must have 1 parameter
Java Result: 1
when i should be getting
getName() = 1.txt
getAbsoluteFile().getName() = 1.txt
exists() = true
canRead() = true
canWrite() = true
getPath() = c:\temp\1.txt
getAbsoluteFile() = c:\temp\1.txt
an so on and so forth

[JosAH]

hi guys can you help why i run i would get a error like this ERROR: must have 1 parameter
Java Result: 1

You have to supply exactly one command line argument (as the program is trying to tell you). Run it like this:

java FileOperations <one argument here>

kind regards,

Jos

[hunterdoom]

what is the argument about i don't really understand

[r035198x]

Your code says

File f = new File(args[0]);

so you need to provide the name of the File (probably with the full path)

[hunterdoom]

i am suppose to find the C:\temp file useing the netbeans i think but i don't know how to put in the C:\temp