[JAVA] 전기 요금 계산

전기 요금 계산기

package report;

import java.util.Scanner;

public class Elec {

	// electric charge table
	// 2013.11.21
	final static float v1 = 60.7f;
	final static float v2 = 125.9f;
	final static float v3 = 187.9f;
	final static float v4 = 280.6f;
	final static float v5 = 417.7f;
	final static float v6 = 709.5f;

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);

		int kwh;
		int tmpCharge;
		int vat; // value added tax
		float eCharge = 0; // energy charge
		int bCharge = 0; // basic charge
		int eBaseFund = 0; // Electric Power Industry Base Fund
		int mcr = 0; // monthly customer requisition

		System.out.print("input kwh : ");
		kwh = sc.nextInt();

		int temp;

		// basic charge
		if (0 < kwh && kwh <= 100) {
			bCharge = 410;
		} else if (100 < kwh && kwh <= 200) {
			bCharge = 910;
		} else if (200 < kwh && kwh <= 300) {
			bCharge = 1600;
		} else if (300 < kwh && kwh <= 400) {
			bCharge = 3850;
		} else if (400 < kwh && kwh <= 500) {
			bCharge = 7300;
		} else {
			bCharge = 12940;
		}

		// energy charge
		temp = kwh;
		if (temp >= 100) {
			eCharge += (float) (100 * v1);
			temp = temp - 100;
			if (temp >= 100) {
				eCharge += (float) (100 * v2);
				temp = temp - 100;
				if (temp >= 100) {
					eCharge += (float) (100 * v3);
					temp = temp - 100;
					if (temp >= 100) {
						eCharge += (float) (100 * v4);
						temp = temp - 100;
						if (temp >= 100) {
							eCharge += (float) (100 * v5);
							temp = temp - 100;
							if (temp >= 0) {
								eCharge += (float) (temp * v6);
							} else {
								eCharge += (float) (temp * v6);
							}
						} else {
							eCharge += (float) (temp * v5);
						}
					} else {
						eCharge += (float) (temp * v4);
					}
				} else {
					eCharge += (float) (temp * v3);
				}
			} else {
				eCharge += (float) (temp * v2);
			}
		} else {
			eCharge += (float) (temp * v1);
		}

		tmpCharge = (int) (bCharge + eCharge);
		vat = (int) Math.round(tmpCharge * 0.1);
		eBaseFund = (int) ((tmpCharge * 0.037) / 10 * 10);
		mcr = (int) (eCharge + bCharge + vat + eBaseFund) / 10 * 10;

//		System.out.println("basic " + bCharge);
//		System.out.println("tax " + eCharge);
//		System.out.println("total " + tmpCharge);
//		System.out.println("vat " + vat);
//		System.out.println("eBaseFund " + eBaseFund);

		System.out.println("output : " + mcr);
	}
}