Stream generate(Supplier<T> s) returns an infinite sequential unordered stream where each element is generated by the provided Supplier. This is suitable for generating constant streams, streams of random elements, etc.
Syntax :
static <T> Stream<T> generate(Supplier<T> s) Where, Stream is an interface and T is the type of stream elements. s is the Supplier of generated elements and the return value is a new infinite sequential unordered Stream.
Example 1 : To generate stream of random integer.
// Java code for Stream.generate()// to generate an infinite sequential// unordered streamimport java.util.*;import java.util.stream.Stream;  class GFG {          // Driver code    public static void main(String[] args) {          // using Stream.generate() method     // to generate 5 random Integer values    Stream.generate(new Random()::nextInt)    .limit(5).forEach(System.out::println);     }} |
Output :
697197501 50139200 321540264 1042847655 -770409472
Example 2 : To generate stream of random Double.
// Java code for Stream.generate()// to generate an infinite sequential// unordered streamimport java.util.*;import java.util.stream.Stream;  class GFG {          // Driver code    public static void main(String[] args) {          // using Stream.generate() method     // to generate 8 random Double values    Stream.generate(new Random()::nextDouble)    .limit(8).forEach(System.out::println);     }} |
Output :
0.5390254520295368 0.8477297185718798 0.23703352435894398 0.09156832989674057 0.9671295321757734 0.9989670394813547 0.8909416330715489 0.08177639888829968
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