For 2D array <code>m</code>, number of rows is given by
- A
m.size()
- B
m.length()
- C
m[0].length
- Dcheck_circle
m.length
Explanation
<code>m.length</code> is row count; <code>m[i].length</code> is column count of row i.
2D Arrays: Creation and Access
AP Computer Science A· difficulty 3/5
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