stream.limit() method in Java

Prerequisite : Streams in Java8
The limit(long N) is a method of java.util.stream.Stream object. This method takes one (long N) as an argument and returns a stream of size no more than N. limit() can be quite expensive on ordered parallel pipelines, if the value of N is large, because limit(N) is constrained to return the first N elements in the encounter order and not just any n elements.

Syntax :

Stream<T> limit(long N)

Where N is the number of elements the stream should be 
limited to and this function returns new stream as output.

Exception : If the value of N is negative, then IllegalArgumentException is thrown by the function.



Below are some examples to understand the implementation of the function in a better way.
Example 1 :

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// Java code to show implementation
// of limit() function
import java.util.*;
  
class GFG {
  
    // Driver code
    public static void main(String[] args)
    {
  
        // Creating a list of integers
        List<Integer> list = new ArrayList<Integer>();
  
        // adding elements in the list
        list.add(-2);
        list.add(0);
        list.add(2);
        list.add(4);
        list.add(6);
        list.add(8);
        list.add(10);
        list.add(12);
        list.add(14);
        list.add(16);
  
        // setting the value of N as 4
        int limit = 4;
        int count = 0;
        Iterator<Integer> it = list.iterator();
  
        // Iterating through the list of integers
        while (it.hasNext()) {
            it.next();
            count++;
  
            // Check if first four i.e, (equal to N)
            // integers are iterated.
            if (count > limit) {
  
                // If yes then remove all the remaining integers.
                it.remove();
            }
        }
  
        System.out.print("New stream of length N"
                         + " after truncation is : ");
  
        // Displaying new stream of length
        // N after truncation
        for (Integer number : list) {
            System.out.print(number + " ");
        }
    }
}

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Output :

New stream of length N after truncation is : -2 0 2 4 

Application :

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// Java code to show the use of limit() function
import java.util.stream.Stream;
import java.util.ArrayList;
import java.util.List;
 class gfg{
       
     // Function to limit the stream upto given range, i.e, 3
     public static Stream<String> limiting_func(Stream<String> ss, int range){
         return ss.limit(range);
     }
       
     // Driver code
     public static void main(String[] args){
           
         // list to save stream of strings
         List<String> arr = new ArrayList<>();
           
         arr.add("geeks");
         arr.add("for");
         arr.add("geeks");
         arr.add("computer");
         arr.add("science");
          
         Stream<String> str = arr.stream();
           
         // calling function to limit the stream to range 3
         Stream<String> lm = limiting_func(str,3);
         lm.forEach(System.out::println);
     }
 }

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Output :

geeks
for
geeks


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In love with a semicolon because sometimes i miss it so badly)

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