Exercise 8: Greeting

Here is a program which expects a single argument, a person's name, which it extracts into a variable. Your task is to adapt the program so that it greets that person. For example, typing java Program Pat should result in the text Hello Pat. being printed.

// Say hello to someone. class Greet { public static void main(String[] args) { Greet program = new Greet(); program.speakTo(args[0]); } void speakTo(String person) { System.out.println("Hello."); } }

This program is not robust because it doesn't check that a name is actually provided, but we can't make these programs robust until we get to grips with decision making in the next section.

Hint 1

Hint 2

Hint 3

Hint 4

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