IntStream count() in Java with examples

IntStream count() returns the count of elements in the stream. IntStream count() is present in java.util.stream.IntStream
Syntax :

long count()

Example 1 : Count the elements in IntStream.

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// Java code for IntStream count()
// to count the number of elements in
// given stream
import java.util.*;
import java.util.stream.IntStream;
  
class GFG {
  
    // Driver code
    public static void main(String[] args)
    {
  
        // creating a stream
        IntStream stream = IntStream.of(2, 3, 4, 5, 6, 7, 8);
  
        // storing the count of elements
        // in a variable named total
        long total = stream.count();
  
        // displaying the total number of elements
        System.out.println(total);
    }
}

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Output :


        
          
          
          
        

            

7



Example 2 : Count the elements in a given range.











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// Java code for IntStream count() 


// to count the number of elements in 


// given range excluding the last element 


import java.util.*; 


import java.util.stream.IntStream; 


  


class GFG { 


  


    // Driver code 


    public static void main(String[] args) 


    { 


  


        // creating a stream 


        IntStream stream = IntStream.range(2, 50); 


  


        // storing the count of elements 


        // in a variable named total 


        long total = stream.count(); 


  


        // displaying the total number of elements 


        System.out.println(total); 


    } 


} 



















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Output :


48



Example 3 : Count distinct elements in IntStream.











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// Java code for IntStream count() 


// to count the number of distinct 


// elements in given stream 


import java.util.*; 


import java.util.stream.IntStream; 


  


class GFG { 


  


    // Driver code 


    public static void main(String[] args) 


    { 


  


        // creating a stream 


        IntStream stream = IntStream.of(2, 3, 4, 4, 7, 7, 8); 


  


        // storing the count of distinct elements 


        // in a variable named total 


        long total = stream.distinct().count(); 


  


        // displaying the total number of elements 


        System.out.println(total); 


    } 


} 



















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Output :


5




          
          
          

          

    

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