DoubleStream.Builder (Java SE 12 & JDK 12 )

All Superinterfaces:

DoubleConsumer

Enclosing interface:

DoubleStream
```
public static interface DoubleStream.Builder
extends DoubleConsumer
```
A mutable builder for a DoubleStream.
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:

DoubleStream.builder()

Method Summary

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

Methods declared in interface java.util.function.DoubleConsumer
andThen

- Method Detail
  - accept
```
void accept(double t)
```
    Adds an element to the stream being built.
    
    Specified by:
    
    accept in interface DoubleConsumer
    
    Parameters:
    
    t - the input argument
    
    Throws:
    
    IllegalStateException - if the builder has already transitioned to the built state
  - add
```
default DoubleStream.Builder add(double 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 - if the builder has already transitioned to the built state
  - build
```
DoubleStream 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 - if the builder has already transitioned to the built state