What is @ peek annotation, @qualifier annotation

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The @Peek annotation is used in Java to mark a method as a peek operation in a stream. The @Qualifier annotation is used in Spring to specify which bean should be autowired when multiple beans of the same type are present.

The @Peek annotation is used in Java streams to perform a side-effect operation on each element without changing the elements themselves.
The @Qualifier annotation in Spring is used to disambiguate beans of the same type by specifying the bean name to be injected.
Example: @Peek(System.out::println) will print each element of a stream without changing the stream itself.
Example: @Qualifier("beanName") specifies that the bean with the name "beanName" should be injected when multiple beans of the same type are present.

What is @ peek annotation, @qualifier annotation

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