Dash is missing on page 115 (Java OCA 8 Programmer I Study Guide)

[Mushfiq Mammadov]

On page 115, the example of insert method

   3: StringBuilder sb = new StringBuilder("animals");
   4: sb.insert(7, "-");          // sb = animals-
   5: sb.insert(0, "-");          // sb = -animals-
   6: sb.insert(4, "-");          // sb = -ani-mals
   7: System.out.println(sb);

The line 6 // sb = -ani-mals should be // sb = -ani-mals-

[Roel De Nijs]

Mushfiq Mammadov wrote:The line 6 // sb = -ani-mals should be // sb = -ani-mals-

That's true!

And would the output be the same if you swapped lines 4 and 6?

[Mushfiq Mammadov]

Roel De Nijs wrote: And would the output be the same if you swapped lines 4 and 6?

If we add and remove characters, their indexes change. So the output would not be the same. If we swapped lines 4 and 6 the output will be:

line 4 --> anim-als

line 5 --> -anim-als

line 6 --> -anim-a-ls

[Roel De Nijs]

Mushfiq Mammadov wrote:If we add and remove characters, their indexes change. So the output would not be the same.

True indeed!

Mushfiq Mammadov wrote:If we swapped lines 4 and 6 the output will be:

line 4 --> anim-als

line 5 --> -anim-als

line 6 --> -anim-a-ls

Spot-on!

[Jeanne Boyarsky]

Agreed. Thank you.