It is reflexive: for any non-null reference value x, x.equals (x) should return true.

具有反射性：对于任何非空的参考值x,x.e quals (x)应该返回真值。

youdao

It is reflexive: for any non-null reference value x, x.equals (x) should return true.

具有反射性：对于任何非空的参考值x,x.e quals (x)应该返回真值。

youdao