1. @SuppressWarnings("unchecked") [^ 抑制单类型的警告]
2. @SuppressWarnings("unchecked","rawtypes") [^ 抑制多类型的警告] 3. @SuppressWarnings("unchecked") [^ 抑制所有类型的警告] *** > 通过源码分析可知@SuppressWarnings其注解目标为类、字段、函数、函数入参、构造函数和函数的局部变量。建议把注解放在最近进警告发生的位置。 下面列举警告关键字：
| all |
to suppress all warnings (suppress all warnings) |
| boxing |
to suppress warnings relative to boxing / unboxing operations (inhibition packing, unboxing warning time) |
| cast |
to suppress warnings relative to cast operations (inhibition of mapping-related warning) |
| dep-ann |
to suppress warnings relative to deprecated annotation (to suppress warning enabled comment) |
| deprecation |
to suppress warnings relative to deprecation (suppression expired Warning) |
| fallthrough |
to suppress warnings relative to missing breaks in switch statements (inhibition correct deletion warning breaks in a switch) |
| finally |
to suppress warnings relative to finally block that do not return (to suppress warning finally module does not return) |
| hiding |
to suppress warnings relative to locals that hide variable (local variable warning with respect to inhibition of hidden variables) |
| incomplete-switch |
to suppress warnings relative to missing entries in a switch statement (enum case) (ignore is not a complete switch statement) |
| nls |
to suppress warnings relative to non-nls string literals (ignoring non-nls character format) |
| null |
to suppress warnings relative to null analysis (skip the operation for the null) |
| rawtypes |
to suppress warnings relative to un-specific types when using generics on class params (ignored when used without a corresponding type specified generics) |
| restriction |
to suppress warnings relative to usage of discouraged or forbidden references (inhibition discourage or prohibit prohibited warning reference) |
| serial |
to suppress warnings relative to missing serialVersionUID field for a serializable class (Ignore serialVersionUID variable is not declared in serializable class) |
| static-access |
to suppress warnings relative to incorrect static access (access that does not inhibit the correct static way warning) |
| synthetic-access |
to suppress warnings relative to unoptimized access from inner classes (subclass does not inhibit the warning according to the optimal method to access internal class) |
| unchecked |
to suppress warnings relative to unchecked operations (no inhibition alert type checking operation) |
| unqualified-field-access |
to suppress warnings relative to field access unqualified (suppression of warnings does not have access domain) |
| unused |
to suppress warnings relative to unused code (the code has not been used to suppress the warning) |