How to compare two Streams in Java 8

Question

What would be a good way to compare two Stream instances in Java 8 and find out whether they have the same elements, specifically for purposes of unit testing?<

Answer 1

How to Compare Two Streams in java 8 and above: with the example of Comparing IntStream

package com.techsqually.java.language.generics.basics;

import java.util.Iterator;
import java.util.stream.IntStream;
import java.util.stream.Stream;

public class TwoStreamComparision {

    public static void main(String[] args) {

        String a = "Arpan";
        String b = "Arpen";

        IntStream s1 =  a.chars();
        IntStream s2  = b.chars();

        Iterator s1It = s1.iterator();
        Iterator s2It = s2.iterator();

        //Code to check how many characters are not equal in both the string at their Respective Position
        int count = 0;
        while (s2It.hasNext()){
            if (!s1It.next().equals(s2It.next())){
                count++;
            }
        }
        System.out.println(count);
    }
}