FJ

FJ is a brainfuck equivalent by User:None1. Its aim is to have programs very easy to type in using a QWERTY keyboard.

Commands

Just like its name, FJ has only 2 valid symbols: f and j, it is case sensitive.

When typing a program in you computer, you just have to directly tap on the keys under your index finger, so it is easy to type.

Here is the brainfuck to FJ conversion table.

Brainfuck	FJ	Description
+	fff	Increment the memory cell under the pointer
-	ffj	Decrement the memory cell under the pointer
,	fjf	Input a character and store it in the cell at the pointer
.	fjj	Output the character signified by the cell at the pointer
<	jff	Move the pointer to the left
>	jfj	Move the pointer to the right
[	jjf	Jump past the matching jjj if the cell under the pointer is 0
]	jjj	Jump back to the matching jjf

Example Programs

Cat Program

fffjjffjffjjjjj

Hello World

ffffffffffffffffffffffffjjfjfjffffffffffffjjfjfjffffffjfjfffffffffjfjfffffffffjfjfffjffjffjffjffffjjjjjfjfffjfjfffjfjffjjfjjfjfffjjfjffjjjjffffjjjjjfjjfjfjjjfjffjffjffjfjjffffffffffffffffffffffjjfjjffffffffffjjjfjjfjfjjjffffjfjjjfffjjffffffffffjjffjffjffjffjffjffjfjjffjffjffjffjffjffjffjffjfjjjfjjfjffffjjjfjfffffffjj

Turing completeness

Since brainfuck is Turing complete, FJ is.

See also

• Binaryfuck, a similar idea, but uses zeros and ones.
• Lazyfuck, also made for ease to type, it also inspired me to create this language.
• FlipJump, A one-instruction language, that its file extension (and sometimes a shorten name for it) is "fj".