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| 1. 14. 13. 保留 |
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- @Retention indicates how long annotations whose annotated types are annotated @Retention are to be retained.
- The value of @Retention can be one of the members of the java.lang.annotation.RetentionPolicy enum:
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- SOURCE. Annotations are to be discarded by the Java compiler.
- CLASS. Annotations are to be recorded in the class file but not be retained by the JVM. This is the default value.
- RUNTIME. Annotations are to be retained by the JVM so you can query them using reflection.
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@Retention(value=SOURCE)
public @interface SuppressWarnings
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