All Methods in an Abstract Class Must Also Be Declared

question 1

True/False

All methods in an abstract class must also be declared abstract.

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Definitions:

Formal Operations

The final stage of cognitive development in Piaget's theory, typically beginning around age 12, characterized by the ability to think abstractly, logically, and systematically.

Jean Piaget

A Swiss psychologist known for his pioneering work in child development, specifically his theory of cognitive development that explains how children construct a mental model of the world.

Psychosocial Development

A theory proposed by Erik Erickson that suggests an individual's development is influenced by social experiences across eight stages of life from infancy to late adulthood.

Promoting Health

Activities or practices focused on encouraging and maintaining health and well-being, rather than just treating disease.