输入int和string的转换，java [英] Type conversion of int and string, java

问题描述

上次考试我们进行了练习以确定以下代码的输出：

last exam we had the exercise to determine the output of the following code:

System.out.println(2 + 3 + ">=" + 1 + 1);

我的答案是 5> = 2 但现在我意识到这是错误的答案。它应该是 5> = 11 。
但是为什么？

My answer was 5 >= 2 but now I realize that this is the wrong answer. It should be 5 >= 11. But why?

推荐答案

假设你的语法是：

System.out.println(2 + 3 + ">=" + 1 + 1);

表达式从左到右进行评估，在这种情况下，2 + 3总和为5，当添加到字符串结果5> =，当添加到1时会给出5> = 1，再添加1，结果为：5> = 11

expressions are evaluated from left to right, in this case 2 + 3 get summed to 5 and when "added" to a string result in "5 >=", which when added to 1 gives "5 >= 1", add another 1 and your result is: "5 >= 11"

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