@SuppressWarnings

       在Java编译过程中会出现警告(Eclipse标黄)，有很多是安全的，但是每次编译有很多警告影响我们对error的过滤和修改(完美主义者讲求代码无警告)。

       @SuppressWarnings(“XXXX”) 来解决[(Eclipse 使用ctrl + 1)来自动塞上]

      例如：@SuppressWarnings("deprecation")表示不显示使用了不赞成使用的类或方法时的警告。

all to suppress all warningsboxing to suppress warnings relative to boxing/unboxing operationscast to suppress warnings relative to cast operationsdep-ann to suppress warnings relative to deprecated annotationdeprecation to suppress warnings relative to deprecationfallthrough to suppress warnings relative to missing breaks in switch statementsfinally to suppress warnings relative to finally block that don’t returnhiding to suppress warnings relative to locals that hide variableincomplete-switch to suppress warnings relative to missing entries in a switch statement (enum case)nls to suppress warnings relative to non-nls string literalsnull to suppress warnings relative to null analysisrawtypes to suppress warnings relative to un-specific types when using generics on class paramsrestriction to suppress warnings relative to usage of discouraged or forbidden referencesserial to suppress warnings relative to missing serialVersionUID field for a serializable classstatic-access to suppress warnings relative to incorrect static accesssynthetic-access to suppress warnings relative to unoptimized access from inner classesunchecked to suppress warnings relative to unchecked operationsunqualified-field-access to suppress warnings relative to field access unqualifiedunused to suppress warnings relative to unused code