Sending any string via cmd. code given

public class argss {
public static void main(String[] args) {
for (int i=0; i < args.length; i++) {
System.out.println("Hello " + args[i]);
}
}
}

I tried running the application but I didn't get any output ??
How to send any string via Command Prompt ??

Also how to send input in a program. Like "system.out.print" outputs on the console , how can we input to the code. Either way like In C++ we use "cin" to input in the program, how/what is for Java ??

For passing command line parameters , after compiling you class when you run it just say

java <classname> argument1 argument2 argument3 ...

in your case

java argss world
I am passing "world" as parameter

OOPs it was same as C/C++.
Anyway Thanks a lot @Jyoti S

Also what is the alternate of cin(C++) in Java ??

If you require to read input from the console then you have to do something like

BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); strStringFromConsole = br.readLine();

Hope that helps.