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// streams/RandomGenerators.java
// (c)2021 MindView LLC: see Copyright.txt
// We make no guarantees that this code is fit for any purpose.
// Visit http://OnJava8.com for more book information.
import java.util.*;
import java.util.stream.*;
public class RandomGenerators {
  public static <T> void show(Stream<T> stream) {
      stream
        .limit(4)
        .forEach(System.out::println);
      System.out.println("++++++++");
  public static void main(String[] args) {
    Random rand = new Random(47);
    show(rand.ints().boxed());
    show(rand.longs().boxed());
    show(rand.doubles().boxed());
    // Control the lower and upper bounds:
    show(rand.ints(10, 20).boxed());
    show(rand.longs(50, 100).boxed());
    show(rand.doubles(20, 30).boxed());
    // Control the stream size:
    show(rand.ints(2).boxed());
    show(rand.longs(2).boxed());
    show(rand.doubles(2).boxed());
    // Control the stream size and bounds:
    show(rand.ints(3, 3, 9).boxed());
    show(rand.longs(3, 12, 22).boxed());
    show(rand.doubles(3, 11.5, 12.3).boxed());

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