Java Reference
In-Depth Information
28
int
small erArea =
smallerTriangle.getArea();
29
return
smallerArea + width;
30 }
31
32
private int
width;
33 }
ch13/triangle/TriangleTester.java
1
public class
TriangleTester
2 {
3
public static void
main(String[] args)
4 {
5 Triangle t =
new
Triangle(
10
);
6
int
area = t.getArea();
7 System.out.println(
ÐArea: Ñ
+ area);
8 System.out.println(
ÐExpected: 55Ñ
);
9 }
10 }
Output
Enter width:
10
Area: 55
Expected: 55
S
ELF
C
HECK
1.
Why is the statement
if (width == 1) return 1
; in the
getArea
method unnecessary?
2.
How would you modify the program to recursively compute the area of
a square?
591
592
C
OMMON
E
RROR
13.1: Infinite Recursion
A common programming error is an infinite recursion: a method calling itself over
and over with no end in sight. The computer needs some amount of memory for
bookkeeping for each call. After some number of calls, all memory that is
