Apr 4, 2011 · For single line comment you can use Ctrl + / and for multiple line comment you can use Ctrl + Shift + / after selecting the lines you want to comment in java editor. On Mac/OS X you can use ⌘ + / to comment out single lines or selected blocks.

It is generally better to just comment every line with //. Most IDEs allow you to do this quite simply. ..which is to be done with Ctrl + / in Eclipse. To uncomment, hit it once again. You dan do it for multiple selected lines. Good to know. I don't use it, so I didn't mention about it :) As @kgrad says, /* */ does not nest and can cause errors.

In Eclipse, Code opened in the Java editor. It supports two types of comments. Single-line comments such as //. Multi-Line Comments such as /* */. Following are ways to comment and uncomment. In Editor, Select the code that you want to comment on. Here are shortcuts. use Ctrl + Shift + L to list out all shortcuts.

Aug 26, 2017 · 1. Shortcut commands in Eclipse IDE : CTRL + / –> to comment single line of code; CTRL + / –> the same works to uncomment the same line of code, which is already commented; CTRL + SHIFT + / –> to comment block of code consisting of 3 or more lines of code; CTRL + SHIFT + \ –> to uncomment block of code, which is already commented

To comment out multiple lines at once, select the lines and press Ctrl + / (on Windows) or Command + / (on macOS). To uncomment multiple lines at once, select the lines and press Ctrl + / (on Windows) or Command + / (on macOS) again.

Aug 17, 2021 · For line comment multiple lines, select multiple lines and press Ctrl + /, it will put // in front of every line. For block commenting in Eclipse, first, select all the lines or code block you want to comment and then enter ctrl+shift+/ it will put /* on the first line and */ on the last line.

Jan 14, 2025 · Usage: Toggles a // comment for the selected line or lines. Shortcut: Simply use the same shortcut (Ctrl + / or Command + /) again on the selected lines to toggle them back to code. Shortcut: Ctrl + Shift + / to start and Ctrl + Shift + \ to end (Windows/Linux).

Multi-line comments start with /* and ends with */. Any text between /* and */ will be ignored by Java. This example uses a multi-line comment (a comment block) to explain the code: Single or multi-line comments? It's up to you which one you use. Normally, we use // for short comments, and /* */ for longer.

May 5, 2010 · Add/remove line comments (//…) from the current line. The position of the cursor can be anywhere on the line. Works with multiple selected lines as well.Alternatively, you can also use Ctrl+Shift+C, which probably works better on a QWERTZ keyboard (eg.

Jul 23, 2020 · There are many different ways how to comment (or un-comment) multiple lines. As as starter, there is the ‘Source’ menu and context menu for this: select the text and choose. The other (faster) way is using the keyboard shortcuts for the above (<CTRL>+<7>, <CTRL>+<SHIFT>+</> and <CTRL>+<SHIFT>+<\>).