IntStream.Builder build() in Java with Examples

// Java code to show the implementation
// of IntStream.Builder build()

import java.util.stream.IntStream;

class GFG {

    // Driver code
    public static void main(String[] args)
    {

        // Creating a Stream in building phase
        IntStream.Builder b = IntStream.builder();

        // Adding elements into the stream
        b.add(1);
        b.add(2);
        b.add(3);
        b.add(4);

        // Constructing the built stream using build()
        // This will enter the stream in built phase
        b.build().forEach(System.out::println);
    }
}

// Java code to show the implementation
// of IntStream.Builder build()

import java.util.stream.IntStream;

class GFG {

    // Driver code
    public static void main(String[] args)
    {
        // Creating a Stream in building phase
        IntStream.Builder b = IntStream.builder();

        // Adding elements into the stream
        b.add(1);
        b.add(2);
        b.add(3);
        b.add(4);

        // Constructing the built stream using build()
        // This will enter the stream in built phase
        // Now no more elements can be added to this stream
        b.build().forEach(System.out::println);

        // Trying to add more elements in built phase
        // This will cause exception
        try {
            b.add(50);
        }
        catch (Exception e) {
            System.out.println("\nException: " + e);
        }
    }
}