OnJava8-Examples/containersindepth/CollectionDataGeneration.java
Bruce Eckel bc0026c3e1 Radically reorganized
Plus many new examples in "streams" chapter.
2015-11-11 20:20:04 -08:00

21 lines
660 B
Java

// containersindepth/CollectionDataGeneration.java
// Using the Suppliers defined in the Arrays chapter.
import java.util.*;
import onjava.*;
public class CollectionDataGeneration {
public static void main(String[] args) {
System.out.println(new ArrayList<>(
CollectionData.list( // Convenience method
new RandomSupplier.String(9), 10)));
System.out.println(new HashSet<>(
new CollectionData<>(
new RandomSupplier.Integer(), 10)));
}
}
/* Output:
[YNzbrnyGc, FOWZnTcQr, GseGZMmJM, RoEsuEcUO, neOEdLsmw,
HLGEahKcx, rEqUCBbkI, naMesbtWH, kjUrUkZPg, wsqPzDyCy]
[2017, 8037, 871, 7882, 6090, 4779, 299, 573, 4367, 3455]
*/