@SuppressWarning 取消指定類型的編譯器警告

使用示例：

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

public class SuppressWarningsTest {

	// 抑制沒有進行類型檢查操作的警告
	@SuppressWarnings(value="unchecked")
	public static void main(String[] args) {
		// 使用 generics(泛型) 時忽略沒有指定相應的類型
		@SuppressWarnings("rawtypes")
		List myList = new ArrayList();
		myList.add("");
	}
	
}

對比：

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
	抑制裝箱、拆箱操作時候的警告
cast	to suppress warnings relative to cast operations
	抑制映射相關的警告
dep-ann	to suppress warnings relative to deprecated annotation
	抑制啓用註釋的警告
deprecation	to suppress warnings relative to deprecation
	抑制過期方法警告
fallthrough	to suppress warnings relative to missing breaks in switch statements
	抑制確在switch中缺失breaks的警告
finally	to suppress warnings relative to finally block that don’t return
	抑制finally模塊沒有返回的警告
hiding	to suppress warnings relative to locals that hide variable
	抑制相對於隱藏變量的局部變量的警告
incomplete-switch	to suppress warnings relative to missing entries in a switch statement (enum case)
	忽略沒有完整的switch語句
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
	忽略對null的操作
rawtypes	to suppress warnings relative to un-specific types when using generics on class params
	使用generics時忽略沒有指定相應的類型
restriction	to suppress warnings relative to usage of discouraged or forbidden references
	禁止使用與不鼓勵或禁止引用相關的警告
serial	to suppress warnings relative to missing serialVersionUID field for a serializable class
	忽略在serializable類中沒有聲明serialVersionUID變量
static-access	to suppress warnings relative to incorrect static access
	抑制不正確的靜態訪問方式警告
synthetic-access	to suppress warnings relative to unoptimized access from inner classes
	抑制子類沒有按最優方法訪問內部類的警告
unchecked	to suppress warnings relative to unchecked operations
	抑制沒有進行類型檢查操作的警告
unqualified-field-access	to suppress warnings relative to field access unqualified
	抑制沒有權限訪問的域的警告
unused	to suppress warnings relative to unused code
	抑制沒被使用過的代碼的警告