@SuppressWarnings 注解详述

1 SuppressWarnings简介

　　SuppressWarnings 是 J2SE 5.0 中标准的 Annotation 之一，其可以标注在类、字段、方法、参数、构造函数，以及局部变量上，其作用为：告诉编译器忽略制定的警告，不用在编译完成后出现警告信息。

2 SuppressWarnings使用方法

第一种：

@SuppressWarnings("")

第二种：

@SuppressWarnings({})

第三种：

@SuppressWarinings(value = {})

3 SuppressWarnings注解详述

all

：to suppress all warnings

boxing

：to suppress warnings relative to boxing/unboxing operations

cast

：to suppress warnings relative to cast operations

dep-ann

：to suppress warnings relative to deprecated annotation

deprecation

：to suppress warnings relative to deprecation

fallthrough

：to suppress warnings relative to missing breaks in switch statements

finally

：to suppress warnings relative to finally block that don’t return

hiding

：to suppress warnings relative to locals that hide variable

incomplete-switch

：to suppress warnings relative to missing entries in a switch statement (enum case)

nls

：to suppress warnings relative to non-nls string literals

null

：to suppress warnings relative to null analysis

rawtypes

：to suppress warnings relative to un-specific types when using generics on class params

restriction

：to suppress warnings relative to usage of discouraged or forbidden references

serial

：to suppress warnings relative to missing serialVersionUID field for a serializable class

static-access

：to suppress warnings relative to incorrect static access

synthetic-access

：to suppress warnings relative to unoptimized access from inner classes

unchecked

：to suppress warnings relative to unchecked operations

unqualified-field-access

：to suppress warnings relative to field access unqualified

unused

：to suppress warnings relative to unused code