Eclipse comment/uncomment shortcut?

Question

I thought this would be easy to achieve, but so far I haven't found solutions for comment/uncomment shortcut on both Java class editor and jsf faceted webapp XHTML file editor :

1. to quickly comment/uncomment a line (like ctrl + d is for removing single line)
2. being able to choose multiple lines and comment/uncomment it

---

For example :

single line java code, from :

private String name;

into

//private String name;

---

multiple line java code, from :

private String name;
private int age;

into

/*private String name;
private int age;*/

---

single line xhtml code, from :

<h:inputText ... />

into

<!-- h:inputText ... / -->

---

multiple line xhtml code, from :

<h:inputTextarea
  rows="xx"
  cols="yy"
  ...
/>

into

<!-- h:inputTextarea
  rows="xx"
  cols="yy"
  ...
/ -->

---

Answer 1

Use

Ctrl + SHIFT + L which will open a list of all major shortcuts for eclipse.

1. For single line java code comment : Ctrl + / (Forwards Slash) and

   Single line uncomment : Ctrl + \ (Backslash)

2. For multiple line java code comment : Ctrl + Shift + / (Forwards Slash) and

   Multiline uncomment : Ctrl + Shift + \ (Backslash)

3. For single line xhtml code comment/uncomment : Ctrl + Shift + c

4. For multiple line xhtml code comment : Ctrl + Shift + / (Forwards Slash)

   For multiple uncomment : Ctrl + Shift + \ (Backward Slash)

For Mac user it will be: ⌘ instead of Ctrl

Answer 2

For a Mac it is the following combination: Cmd + /

Answer 3

You can toggle the comment on one line or selection by using the shortcut Ctrl + / This adds/removes the // infront of the code line

You can block comment /* */ using the Ctrl + Shift + / eclipse shortcut

You can find a complete list of useful eclipse shortcuts here http://javatutorial.net/eclipse-shortcuts

Answer 4

CTRL + 7

does comment/uncomment in the Java Editor.

Answer 5

Ctrl + Shift + C . Works great on .java, .xhtml, .properties and maybe on others but I only tested these ones. Can comment single or multiple lines.

Answer 6

Single comment ctrl + / and also multiple line comment you can select multiple line and then ctrl + /. Then, to remove comment you can use ctrl + c for both single line and multiple line comment.