Arrays w/classes help

[Rapt0r1]

'm trying to write a program using an array to use user entered integers to perform mathematical equations (sum, avg. high-low, mean, etc.). I've written out a class and a main method, but I can't get it to work.
This is all I get when i run the program:

Intro
Enter number of entries:
2

Then nothing. No prompt to enter the integers, no nothing. What have I done wrong?
Here's my class file, Stats

import java.util.*;

public class Stats 
{
	private int[] array;
	private int highest;
	private int lowest;
	private int sum;
	private int avg;
	Scanner keyboard = new Scanner(System.in);	
	
	public Stats()
	{	
		array = new int[5];
	}
	
	public Stats(int numberOfEntries)
	{
		this.set(numberOfEntries);
	}
	
	private void set(int numberOfEntries)
	{
		array = new int[numberOfEntries];
	}

	public int getSum()
	{
		int count;
		int next;
		for(count = 0; count < array.length; count++)
		{
			next = array[count];
			sum = sum + next;
		}
		return sum;
	}

	public int getAvg()
	{
		int count;
		int next;
		for(count = 0; count < array.length; count++)
		{
			next = array[count];
			sum = sum + next;
			avg = sum/array.length;
		}
		return avg;
	}
	
	public int getMin()
	{
		int count;
		int newLow;
		newLow = array[0];
		for(count = 1; count < array.length; count++)
		{
			if (newLow < lowest)
				lowest = newLow;
		}
		return lowest;
	}
	
	public int getMax()
	{
		
		int count;
		int newHigh;
		newHigh = array[0];
			for(count = 1; count < array.length; count++)
			{
				if (newHigh > highest)
					highest = newHigh;
			}
		return highest;
	}
	
	public void readInput()
	{
		String ans;
		int count;
		for(count = 0; count < array.length; count++)
		{
			array[count] = keyboard.nextInt();
			if (array[count] <= 0)
			{
				System.out.println("Invalid entry, please re-enter.");
				array[count] = keyboard.nextInt();
			}
			System.out.println("You entered " + array[count] + "Is this correct? (y/n)");
			ans = keyboard.next();
			if (ans.trim().equalsIgnoreCase("n"))
			{
				System.out.println("Please enter a positive integer");
				array[count] = keyboard.nextInt();
			}
		}
	}
	
	public void userInterface()
	{
		String ans;
		int choice;
		System.out.println("Please select an option: (1, 2, 3, 4, 5, 6, 7)");
		System.out.println("1.Get sum");
		System.out.println("2.Get average");
		System.out.println("3.Get minimum");
		System.out.println("4.Get maximum");
		System.out.println("5.Get standard deviation");
		System.out.println("6.Get variance");
		System.out.println("7.Quit");
		choice = keyboard.nextInt();
			if (choice <=0)
				{
					System.out.println("Invalid entry, please re-enter");
					choice = keyboard.nextInt();
				}
		System.out.println("You entered " + choice + ". Is this correct? (y/n)");
		ans = keyboard.next();
			if (ans.trim().equalsIgnoreCase("n"))
			{
				System.out.println("Please select an option: (1, 2, 3, 4, 5, 6, 7)");
				choice = keyboard.nextInt();
			}
		switch (choice)
		{	
			case 1:
				getSum();
				System.out.println("The sum is " + sum);
				break;
			case 2:
				getAvg();
				System.out.println("The average is " + avg);
				break;
			case 3:
				getMin();
				System.out.println("The minimum is " + lowest);
				break;
			case 4:
				getMax();
				System.out.println("The highest is " + highest);
				break;
			case 7:
				System.exit(0);
				break;
		}
		
	}
}

And the main method:

import java.util.*;

public class Main 
{
	public static void main(String[] args)
	{
		String ans;
		int numberOfEntries;
		Scanner keyboard = new Scanner(System.in);
		
		System.out.println("Intro");
		System.out.println("Enter number of entries: ");
		numberOfEntries = keyboard.nextInt();
		if (numberOfEntries <= 0)
		{
		System.out.println("Number of entries must be greater than zero. Please re-enter.");
		numberOfEntries = keyboard.nextInt();
		}		
		Stats array = new Stats(numberOfEntries);
				
		array.readInput();
		do
			{
			array.userInterface();
			System.out.println("Would you like to do something else?");
			ans = keyboard.next();
			}while (ans.trim().equalsIgnoreCase("n"));
					
		}

}

[mjlorbet]

hmm, you didn't put in a prompt to enter the numbers... should just be a flashing cursor waiting for the number of input elements you requested. try this

 
for(int a = 0; a < numberOfEntries; a++){
System.out.println("Please enter value #" + (a + 1) + ": ");
array[a] = keyboard.nextInt();
}

instead of array.readInput();