public class Main { public static void main(String[] args) { int age = 6; // primary student的定义: 6~12岁 boolean isPrimaryStudent = age >6&& age <12; System.out.println(isPrimaryStudent ? "Yes" : "No"); }}
6~12岁,包含了6岁和12岁,所以是 大于等于6,小于等于12。
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