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1
8
9 public class OptimizerTest {
10 String  blah, blub;
11 Object o;
12
13 private static String manipulateString(String input) {
14 char[] chars = input.toCharArray();
15 char[] dests = new char[chars.length];
16 dests[0] = chars[0];
17 for (int i=1; i< chars.length; i++) {
18 if (chars[i] > chars[i-1]) {
19 dests[i] = (char) (chars[i] - chars[i-1]);
20 } else if (chars[i] == chars[i-1]) {
21 dests[i] = 0;
22 } else if (chars[i] < chars[i-1]) {
23 dests[i] = (char) (Character.MAX_VALUE
24 - (chars[i-1] - chars[i] - 1));
25 } else
26 dests[i] = 'X';
27 }
28 return new String (dests);
29 }
30
31 public static String doubleCompare(double d1, double d2) {
32 return d1 + ((d1 > d2) ? " > "
33 : (d1 < d2) ? " < "
34 : (d1 == d2) ? " == " : " ?? ") + d2;
35 }
36
37 public void test() {
38 System.err.println(manipulateString("ABCDEFGGFEDCBA"));
39 blah = manipulateString("hello world");
40 o = new Object ();
41 blub = "Hallo"+manipulateString("ABCDEFGGFDECBA");
42 System.err.println(blub);
43
44 System.err.println(doubleCompare(0.0, 0.0));
45 System.err.println(doubleCompare(0.0, 1.0));
46 System.err.println(doubleCompare(0.0, -1.0));
47 System.err.println(doubleCompare(0.0, Double.NaN));
48 System.err.println(doubleCompare(Double.NaN, 0.0));
49 System.err.println(doubleCompare(Double.NaN, Double.NaN));
50 System.err.println(doubleCompare(Double.NEGATIVE_INFINITY,
51 Double.POSITIVE_INFINITY));
52
53 System.err.println(doubleCompare(Math.exp(1), 2.718281828459045));
54
55 System.err.println((int)Math.round(Math.exp(Math.log(5)*5))/ 625);
56 }
57 }
58
59 |
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