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LongStream generate() method in Java

  • Last Updated : 06 Dec, 2018

LongStream generate(LongSupplier s) returns an infinite sequential unordered stream where each element is generated by the provided LongSupplier(a supplier of long-valued results). This is suitable for generating constant streams, streams of random elements, etc.

Syntax :

static LongStream generate(LongSupplier s)

Parameters :

  1. LongStream : a sequence of primitive long-valued elements.
  2. LongSupplier : a supplier of long-valued elements.
  3. s : LongSupplier for generated elements.

Return Value : a new infinite sequential unordered LongStream.

Example 1 :

// Java code for LongStream.generate()
// to generate an infinite sequential
// unordered LongStream
import java.util.*;
class GFG {
    // Driver code
    public static void main(String[] args)
        // using LongStream.generate() method
        // to generate 7 random Integer values
        LongStream stream = LongStream.generate(()
               -> { return (long)(Math.random() * 10000); });
        // Displaying the randomly generated values

Output :


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