[comfroels]

Hello Everyone,
I'm still pretty new to java and still learning but created a little console program to test you on how well you can calculate change.
It functions (not perfectly) but I know there are better ways to do what I did. Any suggestions to help me develop better technique? Also,
I thought I could use methods different times and have it return a different value. As you will see I had to make two different random number generators. Then since they were both currentTimeMillis() they were still returning the same values, so i switch one to nanoTime().
Here's the code

import java.util.Scanner;
import java.util.Random;


public class ChangeTest {
	
	public static void main(String[] args) {
		double number1 = 0.0;
		double number2 = 0.0;
		int numCorrect = 0;
		double answer = 0.0;
		double userAnswer = 0.0;
		for(int i = 1; i <= 10;++i){
		Scanner input = new Scanner(System.in);
		number1 = (double)Math.round(genNumber1()*100)/100;
		number2 = (double)Math.round(genNumber2()*100)/100;
		
		
		
		
		
		if (number1 > number2){
			answer = number1 - number2;
			System.out.println("What would be the change if the price was: $" + number2 + " and you were given: $" + number1);
			userAnswer = input.nextDouble();
			if (userAnswer == answer){
				++numCorrect;
				System.out.println("That is correct!");
			}
			else
				System.out.println("I'm sorry that is incorrect.");
			} 
		else
		{
			answer = number2 - number1;
			System.out.printf("What would be the change if the price was: $" + number1 + " and you were given: $" + number2);
			userAnswer = input.nextDouble();
			if (userAnswer == answer){
				numCorrect++;
				System.out.println("That is correct!");
			}
			else
				System.out.println("I'm sorry that is incorrect.");
			}
		}
		if(numCorrect == 10){
			System.out.println("Congratulations! You got a perfect score!!!");
		}
		else if (numCorrect >= 7) {
			System.out.println("Good work! You got " + numCorrect + " correct!!!");
			}
		else
		{
			System.out.println("You can do better! You got " + numCorrect + " correct...");
		}
		
		
	}
	
	
		static double genNumber1(){
		double num1;
		Random generator = new Random(System.currentTimeMillis());
		num1 = generator.nextDouble() * 50.0;
		return num1;
		}
		
		static double genNumber2(){
		double num1;
		Random generator = new Random(System.nanoTime());
		num1 = generator.nextDouble() * 50.0;
		return num1;
		}
		
		
	
}

So yeah, is there an easier way?