You had some simple mistakes and also some statements in the for loop
that don't make sense I comment those, and commented what I changed.
public class OwnBuiltInClass{
public static void main( String[] args ){
// Check if minimum requirements exist
if ((args.length<3)||(args.length>6)){
System.out.println("I need between three and six names of
members of your family please...");
System.exit(0);
}
for(int counter = 0; counter < args.length; counter++){
String strInstance = new String(counter); //these two
statements need work go through the excersises it will help alot
char counter=strInstance(counter).charAt(1);
System.out.println("The new name using the second
characters is: "); //capitalize "System"
System.out.print(char[counter]);
}
}
}// '}" was missing
On Apr 11, 3:42 am, Mihai DINCA <[email protected]> wrote:
> Hi
>
> I don't know what the error message means, but I noticed some round
> parenthesis where square brackets are needed. I think it should be:
> ...
> *char[ ] newName = new char[args.length]; // **
> for(int counter = 0; counter < args.length; counter++){
> // String strInstance(counter)=new String(counter); <- no
> need, you already has the "args"
> // char (counter)=strInstance(counter).charAt(1);
> *newName[counter] = args[counter].charAt(1); // ***
> // system.out.println("The new name using the second
> characters is: ");
> // system.out.print(char[counter]);
> *System.out.println("Entered name: " + args[counter]); // ****
> }
> *String newlyGenerated = new String(newName); // ****
> System.out.prinln("Newly generated name: " + newlyGenerated); //
> ******
> ...
>
> *) There must be some variable that records the first character for each
> of the entered names (that are stored in the "args" array). A good idea
> is to put them in a char[]. With this declaration (*), newName is an
> array of chars and each of its elements is a char. It is instatiated to
> have the same length as the args array, because it gets as many
> characters as Strings in args.
> **) Store in the counter-th element of newName the second character
> (At(1)) of the counter-th String in args. Please notice the square
> brackets around [counter]. This is the standard syntax to access an
> element of an array. Contrary to the round parenthesis around (1). Here
> "At" is a method (function) associated to a String and 1 is the argument
> passed to the function. String is a special class, it is not just an
> array of characters.
> ***) We can println the currently used entered name. Please notice the
> capital "S" in "System". Java is case sensitive and it is sometimes
> difficult to make the difference between capital "S" and lower case "s"
> when printed with some Windows fonts. Just remember that class names
> begin with a capital letter. System (java.lang.System) is a class as
> well as String (java.lang.String), so they both begin with capital letters.
> ****) Because a String is not an array of character, we must create
> somehow a String from the array of characters we already got.
> Fortunately there is a constructor for the String class based on an
> array of characters.
> *****) It is the grate moment to print the final result.
>
> It is not the only way to do it, of course, but it seemed to me that it
> is the way you wanted to do it.
>
> Hope it helps
> mihai
>
> [email protected] a �crit :
>
>
>
>
>
> > I cannot compile my program:
>
> > public class OwnBuiltinClasses{
>
> > public static void main( String[] args ){
>
> > // Check if minimum requirements exist
> > if ((args.length<3)||(args.length>6)){
> > System.out.println("I need between three and six names of
> > members of your family please...");
> > System.exit(0);
> > }
>
> > for(int counter = 0; counter < args.length; counter++){
> > String strInstance(counter)=new String(counter);
> > char (counter)=strInstance(counter).charAt(1);
> > system.out.println("The new name using the second
> > characters is: ");
> > system.out.print(char[counter]);
> > }
> > }
>
> > due to the following error:
> > error: Class names, 'MyOwnBuiltinClassesProject', are only accepted if
> > annotation processing is explicitly requested.
>
> > Any ideas?
>
> > Thanks.
> > Rob
>
> > --
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