Get Started

From J Wiki
< Help(Redirected from Help/Primer/Get started)
Jump to navigation Jump to search


<=   =>

This description assumes that you are using a current version of J in the JQt IDE (Interactive Development Environment).
Double-click the green J icon to start J. The session opens with a window labeled Term which stands for Terminal.

The Term window is an execution window. You type J sentences into the Term window and J executes them when you press enter and displays the result.

Type the following line into the Term window and press Enter.

   2 + 3

The sentence is executed and the result is displayed. Type the following line and press Enter.

   5 - 3

Your session should look something like this:

   2 + 3
5
   5 - 3
2

Lines you enter are indented three spaces and the J answers start at the margin.

<=   =>

Primer Index               Hover to reveal titles   -   Click to access   -   Current page is highlighted
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43
45 46 47 48
50 51 52 53 54 55 56 57
59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75
77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95
97 98 99 100 101 102 103 104 105 106