T - the type of the input to the operation@FunctionalInterface public interface Consumer<T>
Consumer is expected
 to operate via side-effects.
 This is a functional interface
 whose functional method is accept(Object).
| Modifier and Type | Method and Description | 
|---|---|
| void | accept(T t)Performs this operation on the given argument. | 
| default Consumer<T> | andThen(Consumer<? super T> after)Returns a composed  Consumerthat performs, in sequence, this
 operation followed by theafteroperation. | 
void accept(T t)
t - the input argumentdefault Consumer<T> andThen(Consumer<? super T> after)
Consumer that performs, in sequence, this
 operation followed by the after operation. If performing either
 operation throws an exception, it is relayed to the caller of the
 composed operation.  If performing this operation throws an exception,
 the after operation will not be performed.after - the operation to perform after this operationConsumer that performs in sequence this
 operation followed by the after operationNullPointerException - if after is null Submit a bug or feature 
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