Question

How to use IntStream in Java

Answer 1

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

public class MyClass {
    public static void main(String args[]) {
        IntStream istream = IntStream.of(3, 6, 9, 12, 17); 

        PrimitiveIterator.OfInt pi = istream.iterator(); 
   
        while (pi.hasNext()) { 
            System.out.println(pi.nextInt()); 
        } 
    }
}




/*
run:

3
6
9
12
17

*/

 

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Answer 2

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

public class MyClass {
    public static void main(String args[]) {
        IntStream istream = IntStream.of(3, 6, 9, 12, 17); 

        istream.forEach(System.out::println);
    }
}




/*
run:

3
6
9
12
17

*/

 

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Answer 3

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

public class MyClass {
    public static void main(String args[]) {
        IntStream istream = IntStream.range(2, 9);

        Stream<Integer> stream = istream.boxed();
  
        stream.forEach(System.out::println);
    }
}




/*
run:

2
3
4
5
6
7
8

*/

 

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