In this lab, we learn how to separate out one program into two, and get the same result as one single file does.

import java.util.Scanner;

public class TrainStats {
  public static void main(String[] args) {
	// TODO Auto-generated method stub
	NumberStats mygrade = new NumberStats();
	Scanner input = new Scanner(System.in);

	double number;

	do{
	System.out.println("Please enter your number(0 to end entering): ");
		number = input.nextDouble();
		if (number == 0)
		break;
		mygrade.setNewNumber(number);
		} 
	while (true);
		System.out.println("Max is :" + mygrade.getMax());
		System.out.println("Min is :" + mygrade.getMin());
		System.out.println("First Number is:" + mygrade.getFirstNumber());
		System.out.println("Last Number is :" + mygrade.getLastNumber());
		System.out.println("Sum is:" + mygrade.getSum());
		System.out.println("Average is: " + mygrade.getAverage());
		System.out.println("Nummber OF Count is : "
		+ mygrade.getNumberCount());

==================================================================================
public class NumberStats {

	private	 double firstNum;
	private	 double lastNum;
	private  double min;
	private	 double max;
	private	 double sum;
	private	 double average;
	private  int numberCount=0;
	 
		public void setNewNumber(double number)
		{		
		numberCount++;
		if (numberCount==1){
                firstNum=number;	
		lastNum=number;
		min=number;
		max=number;
		}
		else{
		if(min > number){ 
		min = number;
                }
		if(max < number){ 
		 max = number;
		}
	       }
	        lastNum=number;
	        sum+=number;
		average=sum/numberCount;
		}
				
		public void setNewnumber(int number){
			setNewNumber((double)number);
		}
		
		public double getFirstNumber(){
			return firstNum;
		}
		
		public double getLastNumber(){
			return lastNum;
		}

		public double getNumberCount(){
			return numberCount;
		}
		
		public double getMin(){
			return min;
		}
		
		public double getMax(){
			return max;
		}
		
		public double getSum(){
			return sum;
		}
		
		public double getAverage(){
			return average;
		}
}