squid:S2583 ：更改此条件，使其不总是计算为 "true"

Question

S2583：如何更改条件 ps != null，使其不总是求值为 "false"？

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

Answer 1

如果 ps 不为空，因为你总是给它设置一个值（在你省略的行），条件语句是完全多余的，你可以消除条件。

来自 squid: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.

squid:S2583 ：更改此条件，使其不总是计算为 "true"

squid:S2583 : Change this condition so that it does not always evaluate to "true"

java

sonarlint