执行if语句的更好方法

class Animal {
    public void makeSound() {
        // 默认的声音
    }
}

class Dog extends Animal {
    public void makeSound() {
        System.out.println("汪汪汪");
    }
}

class Cat extends Animal {
    public void makeSound() {
        System.out.println("喵喵喵");
    }
}

Animal animal = new Dog();
animal.makeSound(); // 输出：汪汪汪

animal = new Cat();
animal.makeSound(); // 输出：喵喵喵

interface SortingStrategy {
    void sort(int[] array);
}

class BubbleSortStrategy implements SortingStrategy {
    public void sort(int[] array) {
        // 实现冒泡排序算法
    }
}

class QuickSortStrategy implements SortingStrategy {
    public void sort(int[] array) {
        // 实现快速排序算法
    }
}

class Sorter {
    private SortingStrategy sortingStrategy;

    public void setSortingStrategy(SortingStrategy sortingStrategy) {
        this.sortingStrategy = sortingStrategy;
    }

    public void sort(int[] array) {
        sortingStrategy.sort(array);
    }
}

Sorter sorter = new Sorter();
sorter.setSortingStrategy(new BubbleSortStrategy());
sorter.sort(array); // 使用冒泡排序算法进行排序

sorter.setSortingStrategy(new QuickSortStrategy());
sorter.sort(array); // 使用快速排序算法进行排序