1def calculate_dog_food_portion(weight_lbs, age_years, activity_level, health_status):
2    # 体重をkgに換算
3    weight_kg = weight_lbs * 0.453592
4    
5    # 基本量を計算
6    base_amount = weight_kg * 0.075
7    
8    # 年齢係数を適用
9    if age_years < 1:
10        age_factor = 1.2
11    elif age_years > 7:
12        age_factor = 0.8
13    else:
14        age_factor = 1.0
15    
16    # 活動係数を適用
17    if activity_level == 'low':
18        activity_factor = 0.8
19    elif activity_level == 'high':
20        activity_factor = 1.2
21    else:
22        activity_factor = 1.0
23    
24    # 健康係数を適用
25    if health_status == 'underweight':
26        health_factor = 1.2
27    elif health_status == 'overweight':
28        health_factor = 0.8
29    else:
30        health_factor = 1.0
31    
32    # 最終的な量(カップ)を計算
33    daily_portion_cups = base_amount * age_factor * activity_factor * health_factor
34    
35    # グラムに換算
36    daily_portion_grams = daily_portion_cups * 120
37    
38    return {
39        'cups': round(daily_portion_cups, 2),
40        'grams': round(daily_portion_grams)
41    }
42
43# 使用例
44result = calculate_dog_food_portion(30, 4, 'moderate', 'ideal')
45print(f"1日の餌の量: {result['cups']}カップ ({result['grams']}グラム)")
46

1public class DogFoodCalculator {
2    public static class FoodPortion {
3        private final double cups;
4        private final int grams;
5        
6        public FoodPortion(double cups, int grams) {
7            this.cups = cups;
8            this.grams = grams;
9        }
10        
11        public double getCups() { return cups; }
12        public int getGrams() { return grams; }
13    }
14    
15    public static FoodPortion calculatePortion(double weightLbs, double ageYears, 
16                                            String activityLevel, String healthStatus) {
17        // 体重をkgに換算
18        double weightKg = weightLbs * 0.453592;
19        
20        // 基本量を計算
21        double baseAmount = weightKg * 0.075;
22        
23        // 年齢係数を適用
24        double ageFactor = 1.0;
25        if (ageYears < 1) ageFactor = 1.2;
26        else if (ageYears > 7) ageFactor = 0.8;
27        
28        // 活動係数を適用
29        double activityFactor = 1.0;
30        if (activityLevel.equals("low")) activityFactor = 0.8;
31        else if (activityLevel.equals("high")) activityFactor = 1.2;
32        
33        // 健康係数を適用
34        double healthFactor = 1.0;
35        if (healthStatus.equals("underweight")) healthFactor = 1.2;
36        else if (healthStatus.equals("overweight")) healthFactor = 0.8;
37        
38        // 最終的な量を計算
39        double dailyPortionCups = baseAmount * ageFactor * activityFactor * healthFactor;
40        int dailyPortionGrams = (int) Math.round(dailyPortionCups * 120);
41        
42        return new FoodPortion(Math.round(dailyPortionCups * 100) / 100.0, dailyPortionGrams);
43    }
44    
45    public static void main(String[] args) {
46        FoodPortion result = calculatePortion(30, 4, "moderate", "ideal");
47        System.out.printf("1日の餌の量: %.2fカップ (%dグラム)%n", 
48                        result.getCups(), result.getGrams());
49    }
50}
51