import java.text.NumberFormat;
import uwcse.io.*;

/**
 * Practicing using conditionals
 */

public class Conditionals {
	/**
	 * A method to illustrate the use of de Morgan's laws
	 */
	public void testDeMorganLaws() {
		// ask for the family income
		// ask for the number of children
		// if the family income is not greater than 20000
		// or if the number of children is greater than 3
		// display a message stating that the family might
		// be eligible for a stipend
		// do this in 2 ways

		// Input
		double income;
		int children;

		// Test for the stipend eligibility in 2 ways
		// Both ways should give the same result
		// 1) write the condition with an || (or)

		// 2) write the condition with an && (and)

	}

	public void printGrade() {
		// given a grade between 0 and 100
		// print the corresponding letter grade
		// 90-100 is A, 80-89 is B, 70-79 is C, 60-69 is D, below 60 is F
		//
		// use an if-else if structure
		//
		// do the same with a switch statement

		// Input
		int grade;
		// the uw library class Input creates an object to input values
		// from the keyboard
		Input in = new Input();
		grade = in.readInt("Enter a numerical grade (between 0 and 100): ");

		// The grade must be between 0 and 100
		if (grade > 100 || grade < 0) {
			System.out.println("Input error");
			return;
		}
		// Print the letter grade using nested ifs
		if (grade >= 90) {
			System.out.println("A");
		} else if (grade >= 80) {
			System.out.println("B");
		} else if (grade >= 70) {
			System.out.println("C");
		} else if (grade >= 60) {
			System.out.println("D");
		} else {
			System.out.println("F");
		}
		// Print the letter grade using a switch

		switch (grade / 10) {
		case 10:
		case 9:
			System.out.println("A");
			break;
		case 8:
			System.out.println("B");
			break;
		case 7:
			System.out.println("C");
			break;
		case 6:
			System.out.println("D");
			break;
		default:
			System.out.println("F");
			break;
		}
	}

	/**
	 * more ifs
	 */
	public void reportToIRS() {
		// IRS informants are paid cash awards based on the
		// value of the money recovered. If the information
		// was specific enough to lead to a recovery, the
		// informant receives 10 percent of the first $75,000,
		// 5 percent of the next $25,000 and 1 percent of the
		// remainder, up to a maximum award of $50,000.
		// Write a function that takes as input the amount of
		// the recovery and returns the award.
		// Test your program by having main call the function
		// for different amounts.

		// input the amount recovered
		double moneyBack;

		// compute and print the reward
		// for the display try NumberFormat.getCurrencyInstance()
	}

	private double computeReward(double m) {
		return 0;
	}

	public static void main(String[] args) {
		Conditionals c = new Conditionals();
		c.printGrade();
	}
}