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package algs34;
import stdlib.*;
public class XPhoneNumberPerformanceTest {
private static int NUM_SIZES = 8;
private static int START_SIZE = 25000;
public static void main(String[] args) {
Object val = new Object ();
int size = START_SIZE;
for (int count=1; count<NUM_SIZES; count++) {
size += size;
//java.util.IdentityHashMap<XPhoneNumber,Object> set = new java.util.IdentityHashMap <>();
java.util.HashMap<XPhoneNumber,Object> set = new java.util.HashMap <>();
//SeparateChainingHashST<XPhoneNumber,Object> set = new SeparateChainingHashST <>();
//LinearProbingHashST<XPhoneNumber,Object> set = new LinearProbingHashST <>();
Stopwatch sw1 = new Stopwatch ();
for (int i=size-1; i>=0; i--) {
XPhoneNumber x = new XPhoneNumber
(StdRandom.uniform (1000), StdRandom.uniform (1000), StdRandom.uniform (10000));
set.put(x,val);
}
double time1 = sw1.elapsedTime ();
Stopwatch sw2 = new Stopwatch ();
// for (int i=size-1; i>=0; i--) {
// XPhoneNumber x = new XPhoneNumber
// (StdRandom.uniform (1000), StdRandom.uniform (1000), StdRandom.uniform (10000));
// //set.containsKey (x);
// set.contains (x);
// }
double time2 = sw1.elapsedTime ();
System.out.format ("%9d: add=%f contains=%f\n", size, time1, time2);
}
}
}
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