Java:布尔+整数 [英] Java: bool + int

问题描述

是否有一种方法可以使Java与布尔/整数加法和求值一起工作?更具体地说，C ++具有适当的功能，可以缩短许多if语句.

Is there a way to make Java work with boolean/integer addition and evaluation? More specificly, C++ has an appropriate feature which shortens many if statements.

for (int i = 0; i < n; ++i)
    cout << i;

等同于

while (n--)
    cout << n;

或者，代替:

for (int i = 0; i < n; ++i)
    if (x == y)
        count++;

一个可以拥有

for (int i = 0; i < n; ++i)
    count += (x==y);

有没有办法做类似于Java的事情?

Is there a way to do something similar to that in Java?

推荐答案

您可以在Java中使用三元运算符来达到相同的效果.

You can use ternary operator in Java for the same effect.

public class Main {
    public static void main(String[] args) {
        int x = 5, y = 10, count = 0;
        count += x == y ? 1 : 0;
        System.out.println(count);

        x = 10;
        count += x == y ? 1 : 0;
        System.out.println(count);
    }
}

输出:

0
1

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