Noob question JAVA

[Scia]

Hi,

I just started taking Java 101 a week ago and I'm kinda stuck with my "homework" as we are supposed to write program which does the following:

java Welcome SciaWelcome Scia!

Now, I really can't get it to do that.

 

I got a slightly different program working which does:

class Welcome { public static void main (String[] arg) { System.out.println("Please enter your name! \n") ; String name = In.readLine() ; System.out.print("Welcome") ;System.out.print(name) ;System.out.print("!") ;}}

Which outputs:

java WelcomePlease enter your name!SciaWelcome Scia!

How do I get it to work for it to read the name right away once I type

java Welcome Scia

? ^^

 

Any help would be greatly appreciated ^^

[MrSuperb]

class Welcome {     public static void main (String[] arg) {         System.out.println("Welcome " + arg[0] + "!") ;    }}

arg (short for arguments) is a String array which contains the arguments you parse in the console.

 

e.g. if you write

java Welcome Scia

Scia is stored in arg[0] ... the first place in the arg array

[random314]

@MrSuperb is correct, but the first argument is stored in arg[0]

[MrSuperb]

@MrSuperb is correct, but the first argument is stored in arg[0]

 

yeah ... shortly after posting I realized that java's indices start with 0

[MrSuperb]

a more secure variant:

class Welcome {     public static void main (String[] arg) {       if (arg.length > 0) {           System.out.println("Welcome " + arg[0] + "!") ;       }    }}

edit: omfg ... my java skills got bad -.-

[Scia]

Tyvm

[MrSuperb]

Tyvm

 

Glad to help