Syntax error How to use IntStream in lambdas and method references in Java?

How to use IntStream in lambdas and method references in Java?

An IntStream interface extends the BaseStream interface in Java 8. It is a sequence of primitive int-value elements and a specialized stream for manipulating int values. We can also use the IntStream interface to iterate the elements of a collection in lambda expressions and method references.

Syntax

public interface IntStream extends BaseStream<Integer, IntStream>

Example

import java.util.stream.IntStream;

public class StringToIntegerStreamTest {
   public static void main(String[] args) {
      String str = "Tutorials Point";
      IntStream stream = str.chars();
      stream.forEach(element -> System.out.println(((char)element))); // using
lambda expression
   }
}

Output

T
u
t
o
r
i
a
l
s

P
o
i
n
t


Example

import java.util.*;
import java.util.stream.IntStream;

public class IntStreamTest {
   public static void main(String[] args) {
      final List<Integer> list = Arrays.asList(1, 2, 3);
      list.stream().forEach(System.out::println);  // Using method reference

      final IntStream intStream = IntStream.iterate(1, i -> i + 1);
      final int sum = intStream.limit(100).sum();
      System.out.println("sum: " + sum);
   }
}

Output

1
2
3
sum: 5050
Updated on: 2020-07-13T08:42:07+05:30

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