java - 鱿鱼 :S2583 : Change this condition so that it does not always evaluate to "true"

Question

S2583:如何更改条件 ps != null 使其不总是计算为“false”？

PreparedStatement ps = null;
if (ps != null) {
  try {
    ps.close();
  } catch (SQLException uncatched) {
     uncatched.printStackTrace();
  }
}

Answer 1

如果 ps 不为 null，因为您总是为其设置一个值(在您省略的行处)，则条件语句完全多余，您可以消除该条件。

来自鱿鱼:S2583描述:

Conditional statements using a condition which cannot be anything but FALSE have the effect of making blocks of code non-functional. If the condition cannot evaluate to anything but TRUE, the conditional statement is completely redundant, and makes the code less readable.