// AvgMin.java
//
// CS 101  Class Example
//
// Java Application to compute average and minimum of numbers supplied
// as command-line arguments

public class AvgMin {

    public static void main(String[] args) {

	if (args.length == 0) {
	    System.out.println("usage: java AvgMin num1 num2 num3 ...");
	    System.exit(1);
	}
	
	int[] nums = new int[args.length];
	
	parseInts(args, nums);   // convert Strings to ints
	double avg = average(nums); // compute average
	int min = minimum(nums); // compute minimum

	System.out.println(nums.length + " numbers read");
	System.out.println("Average = " + avg);
	System.out.println("Minimum = " + min);
    }

    public static void parseInts(String[] src, int[] dst) {
	for (int i = 0; i < src.length; i++) {
	    dst[i] = Integer.parseInt(src[i]);
	}
    }

    // return average of 'nums'
    public static double average(int[] nums) {
	int sum = 0;
	for (int i = 0; i < nums.length; i++) {
	    sum += nums[i];
	}
	
	// cast both arguments to doubles (otherwise get integer division)
	return (double)sum / (double)nums.length;
    }

    // return minimum of 'nums'
    public static int minimum(int[] nums) {
	int minval = nums[0]; // or:  minval = Integer.MAX_VALUE;
	for (int i = 0; i < nums.length; i++) {
	    if (nums[i] < minval) {
		minval = nums[i];
	    }
	}
	return minval;
    }
    
}