Editing A Program; Editing Cursor Method - AMSTRAD cpc 6128 User Instruction

If your name were Fred and your age 18, on the screen you will see:
1
must say Fred you dont look 18 years old
Editing a Program
If any ofthe lines in the program had been typed incorrectly, resulting in a S y n
t
a
x
err
0
r or other error message, it would be possible to edit that line, rather than type
it out again. To demonstrate this, let's type in the previous program incorrectly:
5 c l
ss
[RETURN]
1 0 i
n put
"w
hat
i
s you n a me" ; a $
[RETURN]
2 0 i
n put
"w
hat
i
s you rag e " ;
b [RETURN]
30
print
"1
must say";a$;" you dont
loo k " ;
b;
"yea r sol d"
[RETURN]
There are 3 mistakes in the above program:
In line 5 we typed in c
L
s s instead of c
L
s .
In line
10
we typed in you insteadofyo u r.
In line 30 we forgot to put a space between say and the quotation marks"
There are 3 main methods of editing a program. The first is to simply type in the new
line again. When a line is retyped and entered, it replaces the same numbered line
currently in the memory.
Secondly, there is the editing cursor method.
- Lasfly~thefeistlie copYcursor metliocI- - --
Editing Cursor Method
To correct the mistake in line 5
Type:
ed
itS [RETURN]
Line 5 will then appear under line 3 0 with the cursor superimposed over the c in
cL s s
To edit out the extra s in c L ss, press the cursor right key ~
until the cursor
appears over the last s, then press the [CLR] key. You will see the s disappear.
Foundation Course Chapter 1 Page 27