import java.text.DecimalFormat;


public class LectureCode {
	public static void main (String[] args) {
		boolean result = LectureCode.isBigger(2, 3);
		System.out.println(result);
		
		double[] doubleArray = {2.2, 7.8, 9, 0, 10};
		System.out.println("doubleArray: " + doubleArray);
		LectureCode.printArray(doubleArray);
		
		String[] stringArray = {"hi", "me"};
		System.out.println(stringOf(stringArray));
		
		LectureCode.scaleTo1(doubleArray);
		
		LectureCode.printArray(doubleArray);
	}
	
	public static boolean isBigger(double a, double b) {
		return a > b;
	}
	
	// method will have extra comma at end. See if you can fix this!
	public static void printArray(double[] array) {
		DecimalFormat df = new DecimalFormat("0.00");
		System.out.print("[");
		for (int i = 0; i < array.length; i++) {
			System.out.print(df.format(array[i]) + ", ");
		}
		System.out.println("]");
	}
	
	public static String stringOf(String[] array) {
		String ans = "[";
		for (int i = 0; i < array.length; i++) {
			ans += "\"" + array[i] + "\", ";
		}
		ans += "]";
		return ans;
	}
	
	public static double findBiggest(double[] array) {
		double ans = Double.NEGATIVE_INFINITY; // modified from lecture code
		for (int i = 0; i < array.length; i++) {
			if (LectureCode.isBigger(array[i], ans)) {
				ans = array[i];
			}
		}
		return ans;
	}
	
	public static void scaleTo1(double[] array) {
		// STEP 1: find largest value in array
		double largestValue = LectureCode.findBiggest(array);
		
		// STEP 2: scale each element
		for (int i = 0; i < array.length; i++) {
			double scaledValue = array[i] / largestValue;
			array[i] = scaledValue;
		}
	}
	
}