How do I write this symbol in Android Studio? - android-studio

I just registered to ask how do I write this symbol, because it's what holds me away from continuing the programming. The tutorial I was looking at is being narrated in some language I do not know, so maybe you do know!
Here is the picture;
http://prntscr.com/9iitiy - Thanks!

This symbol & is an ampersand. The thing you highlighted is just two of them.
It is on the 7 key on the keyboard. shift + 7

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Additional Symbols using key combinations

I am german but switched to US layout for coding. I got myself new keycaps and will stay with them forever.
Still, sometimes i wish to enter german symbols. Ä,Ö,Ü being examples thereof.
I know there is the option to Switch layouts (Super Space) for entering one character or compose key.
But I'd prefer to be able to use just a combination i can specify by myself.
I have an "Alt Gr" Key right of my spacebar. I could imagine using it + some key to get another symbol. Alt Gr + U = Ü for example.
Like this, i could also add other symbols i need from time to time, especially mathematical symbols or greek letters.
Is there any tool that can do this? Best would be one that is available for Windows and Linux.
Many thanks in advance.

Applesoft Basic, how to hide the flashing cursor?

I’ve finally decided to build a monthly budget program for an Apple //e, coming along nicely. Right now I’m using the AppleWin emulator.
Anyone know how to hide the cursor in Applesoft Basic? I was thinking of either hiding it using a Poke or change the cursor character to a blank space?
I know that VisiCalc does this, when you load the program, there is no flashing cursor until you begin editing. I want to do this same feature in my program.
Note: I don’t want to do it through the emulator as I will eventually move this to Apple hardware.
I found a solution for this here. Terminal control/Hiding the cursor.
I was able to hide the cursor using the WAIT command, then grab the next character with GET.
WAIT 49152, 128
GET I$
More examples here: Applesoft Basic Examples
VisiCalc is written in assembly language, and so is Applesoft BASIC - and so is the firmware routine that Applesoft calls to get a key while flashing the cursor. You can read the keyboard without flashing the cursor from Applesoft or assembly language, but you need to learn the underlying soft-switches used to do this.
Name Hex Decimal Negative
KBD $C000 49152 -16384
KBDSTRB $C010 49168 -16368
In summary, you read KBD to get the value of the last key pressed. Bit 8 of that value (the 'strobe') will be set if it's a new key - in which case you need to subtract 128 to get the key value. You then access KBDSTRB to clear the strobe bit of KBD. For more details I refer you to page 5 of the Apple II Reference Manual or page 12 of the Apple IIe Technical Reference Manual.
Another good book which talks about this and many other things is The New Apple II User's Guide.
Here's a simple example of how to use these soft-switches:
10 KEY = PEEK (-16384) : REM READ KEY
20 IF KEY >= 128 THEN PRINT PEEK (-16368) : REM CLEAR STROBE
30 GOTO 10
Finally, consider visiting Retrocomputing for these kinds of questions.
Original answer:
There is a undocumented way to do this on Apple IIe
POKE 2043, ASC(" ") + 128
More info: https://www.atarimagazines.com/compute/issue90/Feedback_Custom_Cursor.php
Update
As #Nick Westgate said. This works for Apple IIc and not for Apple IIe.
More info: https://github.com/AppleWin/AppleWin/issues/135

How to insert an "—" direclty from my Keyboard without numberpad?

I have searched all corners of the internet, yet to find an answer to my simple question:
How to place, directly from keyboard input, the Em-Dash "—" character onto a code editor such as Notepad++ or Dreamweaver using modern notebooks (such as a dell xps 13" 2015, win10 64bit) without:
any extended keyboard numbpad, obviously;
any third party automation scripting softwares;
any charactermap insertion tools such as windows charactermap
How? Thanks!
I imagine you're asking about how to do it in Windows here.
I assume you know how you'd do it if you had a numeric keypad (Alt + 0151 if as it seems you are on the 1252 code page).
See also Insert Unicode characters via the keyboard? , in order to use the unicode value (Alt + +2014) .
This is an at least related question: How to emulate numpad on a PC laptop?
Possible solutions:
Most notebooks do have an hidden "numpad", accessible through the Fn key (see for example https://www.dummies.com/computers/pcs/the-hidden-numeric-keypad-on-your-laptop/ ).
I couldn't find out for sure if the Dell XPS 13 specifically does, but it is very likely.
This Me and My Dell manual (Using numeric keypad on a laptop) seems to explain its usage for all Dell laptops.
Use copy and paste (copy the character from some place and paste in the editor). A clipboard manager might help you if you choose to go this way.
You might also use some third-party software to have that character emitted when you press a key or shortcut, but I guess that is included in your "third party automation scripting softwares" prescription.
Use the unicode combination! I now found out that with that one you can use indifferently both numbers from the keypad and normal ones !
Unfortunately it still requires the numpad's "plus" (add) key, so you need to be able to type at least that.
See Insert Unicode characters via the keyboard? or https://en.wikipedia.org/wiki/Unicode_input to learn how to enable the combination, if it is not already enabled.
If there indeed exist laptops with no numeric keypad support unfortunately the Windows developers didn't fully anticipate for that; it probably wouldn't take much and wouldn't have negative repercussions for Windows to support the insertion via the normal numeric keys (or the normal + for the Unicode combination), but for now it's not supported (as far as I know).
It would be a bad mistake on the part of the laptops' developers to not include any way to type the numpad keys, though, as they are required by many programs.

How to write superscript / upper index in Visual Studio?

It is possible, but I don't know how is it done.
Use the Windows Charmap.exe applet. In the Font combobox select a font that has a lot of glyphs, Arial Unicode MS is a very good choice. Tick the Advanced view checkbox and type "super" in the Search box. The grid will show all superscript glyphs, select and copy from that and paste into your source code.
Or copy/paste one of these: ¹²³⁴⁵⁶⁷⁸⁹⁰
Subscript characters: ₀₁₂₃₄₅₆₇₈₉
Adding more details to complement #HansPassant's answer. Other frequently used sets which can be used as is by copy/paste:
Superscript small case letters: ᵃᵇᶜᵈᵉᶠᵍʰⁱʲᵏˡᵐⁿᵒᵖʳˢᵗᵘᵛʷˣʸᶻ
Subscript small case letters: ₐ ₑ ₕ ᵢ ⱼ ₖ ₗ ₘ ₙ ₒ ₚ ᵣ ₛ ₜ ᵤ ᵥ ₓ
If you're wondering why few letters are missing in above series then please read below posts:
Where are the other letters in this Unicode block?
Why does the unicode Superscripts and Subscripts block not contain simple sequences of all letters?
Why is there no character for "superscript q" in Unicode?
Since there is a tag visual-studio-2012, I assume you are running Windows. There is a great opensource program called WinCompose, which allows to use easy-to-remember and intuitive shortcuts for a huge amount of Unicode symbols, including numerical super- and subscripts. Every shortcut is invoked via a Meta key (e.g. Right Alt), for example:
Meta + ^ + 1 gives ¹;
Meta + _ + 9 gives ₉.
WinCompose also supports search, can be run in background, and eliminates tedious procedure of calling Character Map with subsequent copy-pasting or remembering the Unicode charsets (but the latter are also listed):
P. S. I'm not affiliated with this software by any means. Just a happy user.
One more way for WPF users,
<TextBlock >
<Run>x</Run>
<Run FontSize="8" BaselineAlignment="TextTop" >2</Run>
</TextBlock>
Change BaselineAlignment to TextBottom if you want to use as subscript.
In VsCode download the extension "Fast Unicode Math Characters".
The hotkeys for ₂ is \_2.
The hotkeys for ² is \^2.
Looks like there are some simple tags that you can use to make any text superscript/subscript. The superscript tag is <sup> and the subscript tag is <sub>.
https://www.w3schools.com/tags/tag_sup.asp
use (Ctrl + Shift + P) command to apply superscript and subscript in Visual Studio.
This is how usually I tend to do it on Mac.
In the VS code, hit (Control + Command + Space) to bring up the Character selector and search for 'superscript' in the search box.
Click on required superscript and add it. And here is the result. Screenshot are from the VS code only.
This approach should work across most of the apps in the Mac. Tested in MacOS 12.5. (Monterey)
There are several solutions. Personally, I simply formaat the label text in Word, use a screen capture and save it as an image that I use with a label.

how to type single quote in J gtk terminal under Windows 7

I just started programming J. Now I want to type
text=: 'hello world'
text
in the gtk terminal, which when run should display:
hello world
But when I type the single quote character it renders as ´, not as ' in the gtk terminal. And then when I run the program the interpreter says "spelling error".
Now the only way I can put a ' in the terminal is by typing it in notepad and pasting it in the gtk terminal. I find that cumbersome.
Now my question is:
Is there an easier way to type a ' in the gtk terminal?
I have Windows 7 64 bits version, also 64 bits version of J, version j64-701.
I just encountered this problem as well, and it appears that this is caused by a keyboard setting (controlling whether quotes appear directly or can be used to make é, ë and the like).
This setting can be changed in almost all Windows applications by pressing Left Alt + Shift. After using this combination, the single quotes appeared correctly for me.
HTH.
I've faced exactly the same problem and I found out that it happens in every software that uses GTK+ (Pidgin, GIMP, Geany, etc), if you have set your keyboard to English-International, when you press the single quote(')/double quote(") key, what you get is acute accent(´)/diacritic(¨).
The best solution to me was, adding the English-US keyboard to the list of available keyboards in Windows (yes, this solution is for windows but you can easily do something similar in any SO you are facing the same problem).
And when I want to input an [ ' ], I just press the default combination LEFT CONTROL + SHIFT to toggle between keyboards.
Long shot, but I'm guessing it's a keyboard thing. My French keyboard has a funky layout, and yours (I'm guessing Dutch?) might have one too. I guess I'm lucky, under Vista 64, I get single quotes, with the right key.
I think it's a bug of the specific version of J. I will ask this question to the support of the producers of J.

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