选择:Window-》Preferences-》JAVA-》Editor-》Context Assist
在Auto activation triggers for Java处填写: .abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ
点击Apply按钮
选择:Window-》Preferences-》JAVA-》Editor-》Context Assist
在Auto activation triggers for Java处填写: .abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ
点击Apply按钮