01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
|
package algs11;
import java.util.Arrays;
import stdlib.*;
public class Playground {
/* Return number of times 5.0 occurs in the list */
public static int numFives (double[] list) {
return StdRandom.uniform (100); //TODO: fix this
}
/* This is a test function */
public static void testNumFives (int expected, double[] list) {
int actual = numFives (list);
if (expected != actual) {
StdOut.format ("Failed: Expecting [%d] Actual [%d] with argument %s\n", expected, actual, Arrays.toString (list));
}
}
/* A main function for testing */
public static void main (String[] args) {
testNumFives (0, new double[] { });
testNumFives (1, new double[] { 5 });
testNumFives (0, new double[] { 11 });
testNumFives (3, new double[] { 5, 5, 5 });
testNumFives (0, new double[] { 11, 21, 31, 41 });
testNumFives (1, new double[] { 5, 11, 21, 31, 41 });
testNumFives (1, new double[] { 11, 21, 31, 41, 5 });
testNumFives (1, new double[] { 11, 21, 5, 31, 41 });
testNumFives (3, new double[] { 11, 21, 5, 31, 5, 41, 5});
StdOut.println ("Finished tests");
}
/* A main function for debugging -- change the name to "main" to run it */
public static void main2 (String[] args) {
//Trace.drawSteps ();
Trace.drawStepsOfMethod ("numFives");
Trace.drawStepsOfMethod ("numFivesHelper");
Trace.run ();
double[] list = new double[] { 5, 11, 5, 5 };
double result = numFives (list);
StdOut.println ("result: " + result);
}
}
|
