摘要：
1，Project Structure里确认两个地方:Project sdk以及project language level 2，Project Structure->Modules里Sources里的Language level 3，Preferences->java Compiler->Per- 阅读全文
摘要：
Usage of API documented as @since 1.6+ This inspection finds all usages of methods that have @since tag in their documentation. This may be useful whe 阅读全文