Validate Phone numbers

import java.util.Scanner;
/**
 * Tyler Thompson
 * Validate phone numbers
 */
public class phone {
    private String pattern = "\\d{10}|(?:\\d{3}-){2}\\d{4}|\\(\\d{3}\\)\\d{3}-?\\d{4}";
    public phone(){}

    public String validate(String number){
        return (number.matches(this.pattern)) ? "Valid" : "Invalid";
    }
    public String getPattern(){return this.pattern;}

    public static void main(String[] args) {
        String[] testStrings = {
                /* Following are valid phone number examples */
                "(123)4567890", "1234567890", "123-456-7890", "(123)456-7890",
                /* Following are invalid phone numbers */
                "(1234567890)","123)4567890", "12345678901", "(1)234567890",
                "(123)-4567890", "1", "12-3456-7890", "123-4567", "Hello world"};

        // current pattern recognizes any string of digits
        // Apply regular expression to each test string
        System.out.println("Running test suite");
        for(String inputString : testStrings) {
            phone p = new phone();
            System.out.println(inputString + ": " +  p.validate(inputString));
        }

        Scanner scanner = new Scanner(System.in);
        System.out.println("Please enter phone number");
        String number = scanner.nextLine();
        phone p = new phone();
        System.out.println(number + ": "  + p.validate(number));
    }
}