IntStream.Builder (Java Platform SE 8 ) (original) (raw)

• All Superinterfaces:
  IntConsumer
  Enclosing interface:
  IntStream

public static interface IntStream.Builder
extends IntConsumer
A mutable builder for an IntStream.
A stream builder has a lifecycle, which starts in a building phase, during which elements can be added, and then transitions to a built phase, after which elements may not be added. The built phase begins when the build() method is called, which creates an ordered stream whose elements are the elements that were added to the stream builder, in the order they were added.
Since:
1.8
See Also:
IntStream.builder()

• • Method Summary

  All Methods Instance Methods Abstract Methods Default Methods

  Modifier and Type	Method	Description
  void	accept(int t)	Adds an element to the stream being built.
  default IntStream.Builder	add(int t)	Adds an element to the stream being built.
  IntStream	build()	Builds the stream, transitioning this builder to the built state.

     * ### Methods inherited from interface java.util.function.[IntConsumer](../../../java/util/function/IntConsumer.html "interface in java.util.function")  
     `[andThen](../../../java/util/function/IntConsumer.html#andThen-java.util.function.IntConsumer-)`

• • Method Detail

     * #### accept  
     void accept(int t)  
     Adds an element to the stream being built.  
     Specified by:  
     `[accept](../../../java/util/function/IntConsumer.html#accept-int-)` in interface `[IntConsumer](../../../java/util/function/IntConsumer.html "interface in java.util.function")`  
     Parameters:  
     `t` \- the input argument  
     Throws:  
     `[IllegalStateException](../../../java/lang/IllegalStateException.html "class in java.lang")` \- if the builder has already transitioned to the built state  
     * #### add  
     default [IntStream.Builder](../../../java/util/stream/IntStream.Builder.html "interface in java.util.stream") add(int t)  
     Adds an element to the stream being built.  
     Implementation Requirements:  
     The default implementation behaves as if:  
     ```  
          accept(t)  
          return this;  
            
     ```  
     Parameters:  
     `t` \- the element to add  
     Returns:  
     `this` builder  
     Throws:  
     `[IllegalStateException](../../../java/lang/IllegalStateException.html "class in java.lang")` \- if the builder has already transitioned to the built state  
     * #### build  
     [IntStream](../../../java/util/stream/IntStream.html "interface in java.util.stream") build()  
     Builds the stream, transitioning this builder to the built state. An `IllegalStateException` is thrown if there are further attempts to operate on the builder after it has entered the built state.  
     Returns:  
     the built stream  
     Throws:  
     `[IllegalStateException](../../../java/lang/IllegalStateException.html "class in java.lang")` \- if the builder has already transitioned to the built state

Submit a bug or feature
For further API reference and developer documentation, see Java SE Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.
Copyright © 1993, 2025, Oracle and/or its affiliates. All rights reserved. Use is subject to license terms. Also see the documentation redistribution policy.