Help option in a JAR FILE

[ramina sen]

i have created a jar to copy two files using Variable argument whichis working correctly e.g java jar filecopy.jar file1 file2 i want to provide a -help option in this which will be like below and user must aware what he has to pass in arguments e.g java jar filecopy.jar -help how do i do this not getting any idea :new to java,urgent help required !!!!

[Lost User]

You just add the code to check for "-help" as a filename, and branch to the code which displays the help.

[ramina sen]

did you men alike this ...

public static void main(String[] args) {
String filename1 = args[0];
String filename2 = args[1];

    if ((!(filename1.length() > 0)) || (!(filename2.length() > 0))) {
        System.out
                .println("please provide the foldername and string to be replaced ");
        return;
    }
    if(args\[0\] == "help" )
    {
        System.out
                .println("please run  the utility as filecopy file1 file2");
    }

can you edit it if wrong

[Lost User]

Something like that, but you can easily test it.