是超载还是压倒一切?

问题描述

我有一个代码，但我不明白为什么输出将是长轮胎".有人可以帮助我理解此代码吗?

I have a code and I am not able to get why the output will be "Radial Tire with long".Can somebody help me to understand this code?

class Tyre {
    public void front() throws RuntimeException {
        System.out.println("Tire");
    }

    public void front(long a) {
        System.out.println("Radial Tire with long");
    }
}

class TestSolution extends Tyre {
    public void front() {
        System.out.println("Radial Tire");
    }
    public void front(int a) throws RuntimeException {
        System.out.println("Radial Tire with int");
    }


public static void main(String... args) {
        Tyre t = new TestSolution();
        int a = 10;
        t.front(a);

}

}

推荐答案

front在TestSolution中没有被覆盖，它已被重载.

front is not overridden in TestSolution, it is overloaded.

您可以将重载函数视为完全不同的函数，例如名称不同的函数.

You can regard an overloaded function as a completely different function, like one with a different name.

所以t.front(a)会调用Tyre中的那个，而a会隐式转换为long.

So t.front(a) will call the one in Tyre, with an a implicitly converted to long.

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