The method you're looking for is charAt. Here's an example:

String text = "foo";
char charAtZero = text.charAt(0);
System.out.println(charAtZero); // Prints f

For more information, see the Java documentation on String.charAt. If you want another simple tutorial, this one or this one.

If you don't want the result as a char data type, but rather as a string, you would use the Character.toString method:

String text = "foo";
String letter = Character.toString(text.charAt(0));
System.out.println(letter); // Prints f

If you want more information on the Character class and the toString method, I pulled my info from the documentation on Character.toString.

Perhaps what you are looking to do is have the question be printed, and then the answer typed on the line below it? If so, what you need to do is change the first call in getString from System.out.print to System.out.println, which should add on a newline after the question, moving the input to the next line.

EDIT: This is what it might look like now:

Please enter your first name:John

And here's what it would change to:

Please enter your first name:
John

You should use array of strings for this purpose.

String[] Qty = {"1","2"};
for(int j = 0 ; j < 2 ;j++)
{
   System.out.println("qtyString = " + Qty[j]);
}