Collectors Static Method GroupingBy with One Argument Receives a Function

question 55

Multiple Choice

Collectors static method groupingBy with one argument receives a Function that classifies objects in the stream-the values returned by this function are used as the keys in a Map. The corresponding values, by default, are ________ containing the stream elements in a given category.

• A) Lists
• B) Arrays
• C) Strings
• D) Collectors

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Definitions:

Volcanic Eruption

The explosive release of magma, ash, and gases from a volcano, affecting its surrounding areas.

Rotational Slide

A type of landslide characterized by the downhill rotation of rock or soil mass along a concave-upward surface.

Earth Flow

A flowing mass of weak, mostly fine-grained material, especially mud and soil.

Debris Flow

A fast-moving mass of loose mud, sand, soil, rock, and water that travels down slopes and valleys, often caused by heavy rain or rapid snowmelt.