intellj快捷键

Ctrl+Shift+空格:补全

Ctrl+Alt+B：定位到方法

Ctrl+W or 双击：选中代码块

Ctrl+斜杠：comments or uncomments the current line or selected block with single line comments (//...).

Ctrl+Shift+斜杠：encloses the selected block in a block comment (/*...*/)

                            To uncomment a commented block press Ctrl+Shift+斜杠 anywhere inside it.