@SuppressWarning 取消指定类型的编译器警告

使用示例：

import java.util.ArrayList;
import java.util.List;

public class SuppressWarningsTest {

	// 抑制没有进行类型检查操作的警告
	@SuppressWarnings(value="unchecked")
	public static void main(String[] args) {
		// 使用 generics(泛型) 时忽略没有指定相应的类型
		@SuppressWarnings("rawtypes")
		List myList = new ArrayList();
		myList.add("");
	}
	
}

对比：

value 的其他取值及作用

value值	作用
all	to suppress all warnings
	抑制所有警告
boxing	to suppress warnings relative to boxing/unboxing operations
	抑制装箱、拆箱操作时候的警告
cast	to suppress warnings relative to cast operations
	抑制映射相关的警告
dep-ann	to suppress warnings relative to deprecated annotation
	抑制启用注释的警告
deprecation	to suppress warnings relative to deprecation
	抑制过期方法警告
fallthrough	to suppress warnings relative to missing breaks in switch statements
	抑制确在switch中缺失breaks的警告
finally	to suppress warnings relative to finally block that don’t return
	抑制finally模块没有返回的警告
hiding	to suppress warnings relative to locals that hide variable
	抑制相对于隐藏变量的局部变量的警告
incomplete-switch	to suppress warnings relative to missing entries in a switch statement (enum case)
	忽略没有完整的switch语句
nls	to suppress warnings relative to non-nls string literals
	忽略非nls格式的字符
null	to suppress warnings relative to null analysis
	忽略对null的操作
rawtypes	to suppress warnings relative to un-specific types when using generics on class params
	使用generics时忽略没有指定相应的类型
restriction	to suppress warnings relative to usage of discouraged or forbidden references
	禁止使用与不鼓励或禁止引用相关的警告
serial	to suppress warnings relative to missing serialVersionUID field for a serializable class
	忽略在serializable类中没有声明serialVersionUID变量
static-access	to suppress warnings relative to incorrect static access
	抑制不正确的静态访问方式警告
synthetic-access	to suppress warnings relative to unoptimized access from inner classes
	抑制子类没有按最优方法访问内部类的警告
unchecked	to suppress warnings relative to unchecked operations
	抑制没有进行类型检查操作的警告
unqualified-field-access	to suppress warnings relative to field access unqualified
	抑制没有权限访问的域的警告
unused	to suppress warnings relative to unused code
	抑制没被使用过的代码的警告