1. @? 后不給提示

解決方法: windows→Proferences→seach “Content Assist” 設置 Auto-Activation 如下 :


??? Auto-Activation
??? 1.) 勾選Enable auto activation選項
??? 2.) Auto activation delay ->? (100)
??? 3.) Auto activation triggers for Java ->? (.@)
??? 4.) Auto activation triggers for Javadoc ->? (#)