问题 Reading the JAVA 13 SE specification, I found in chapter 5, section 5.1.7. Boxing Conversion the following guarantee: If the value p being boxed is the result of evaluating a constant expression (§15.28) of type boolean, char, short, int, or long, and the result is true, false, a character in the range '\u0000' to '\u007f' inclusive, or an integer in the range -128 to 127 inclusive, then let a and b be the results of any two boxing conversions of p. It is always the case that a == b I find it