OuterClass.java

public class OuterClass {
    int[] nums;

    OuterClass(int[] n) {
        nums = n;
    }
    void analyze() {
        Inner inOb = new Inner();
        System.out.println("Minimum: " + inOb.min());
        System.out.println("Maximum: " + inOb.max());
        System.out.println("Average: " + inOb.avg());
    }
    // This is an inner class.
    class Inner {
        int min() {
            int m = nums[0];
            for (int i = 1; i < nums.length; i++)
                if (nums[i] < m) m = nums[i];
            return m;
        }
        int max() {
            int m = nums[0];
            for (int i = 1; i < nums.length; i++)
                if (nums[i] > m) m = nums[i];
            return m;
        }
        int avg() {
            int a = 0;
            for (int i = 0; i < nums.length; i++)
                a += nums[i];
            return (a / nums.length);
        }
    }
}
class NestedClassDemo {
    public static void main(String[] args) {
        int[] x = { 3, 2, 1, 5, 6, 9, 7, 8 };
        var outOb = new OuterClass(x);
        outOb.analyze();
    }
}