Equality

Equality determines whether two expressions have equivalent values.

Related concepts:  OperatorValue

Closest Wikipedia entry:  Equality (mathematics) — In mathematics, equality is a relationship between two quantities or expressions, stating that they have the same value, or represent the same mathematical object. Equality between A and B is written A = B, and pronounced "A equals B". In this equality, A and B are distinguished by calling them left-hand side (LHS), and right-hand side (RHS).

Misconceptions about Equality

12 documented Misconceptions

AssignCompares

= compares two values

ComparisonWithBooleanLiteral

To test whether an expression is true or false, one must compare it to true or to false

EqualityOperatorComparesObjectsValues

o==p compares the objects referred to by variables o and p

EqualsComparesReferences

o.equals(p) compares the references stored in the variables o and p