import java.text.DecimalFormat;

public class I4 {
	/**
	 * Returns a uniformly random number in the interval [min,max].
	 * 
	 * @param min the lower bound
	 * @param max the upper bound
	 * @throws IllegalArgumentException if <code>min > max</code>
	 * @return the return number
	 */
	public static int randomInRange(int min, int max) {
		if( min > max ){
			throw new IllegalArgumentException();
		}
		final int result = min + (int)(Math.random() * (max-min+1));
		assert min <= result && result <= max;
		return result;
	}

	/**
	 * Runs randomInRange a given number of times and creates a table with
	 * frequencies of occurrence for each number in the given interval.
	 * This method has no side-effects.
	 * 
	 * @return the table
	 */
	public static String makeTable(int MIN, int MAX, int CALLS) {
		int[] a = new int[MAX-MIN+1];

		// call the function many times
		for(int i = 0 ; i < CALLS ; i++){
			a[randomInRange(MIN,MAX)-MIN]++;
		}

		DecimalFormat df = new DecimalFormat("#.####");

		// create the table
		StringBuilder table = new StringBuilder();
		for(int i = MIN ; i <= MAX ; i++){
			double freq = 100.0 * a[i-MIN]/(double)CALLS;
			table.append(i + ": " + df.format(freq) + "%" + "\n");
		}
		return new String(table);
	}

	public static void main(String[] args) {
		final int MIN = 0;
		final int MAX = 8;
		final int CALLS = 100000;
		final int TABLES = 3;

		for(int i = 0 ; i < TABLES ; i++) {
			System.out.println(makeTable(MIN, MAX, CALLS));
		}
	}
}