Assuming that random is a SecureRandom object, explain in detail the stream pipeline:

Question

```
random.ints(1000000, 1, 3)
.boxed()
.collect(Collectors.groupingBy(Function.identity(),
Collectors.counting()))
.forEach((side, frequency) ->
System.out.printf("%-6d%d%n", side, frequency));
```

Answer 1

The call to method ints creates an IntStream of 1,000,000 int values of either 1 or 2. The call to method boxed converts the IntStream to a Stream. The call to method collect produces a Map in which the random values are grouped by value (as the key) and the count of the number of time each value occurred (as the corre- sponding value). The forEach operation displays each value (side) and the number of times it occurred (frequency).