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, more generally, two mathematical expressions, asserting that the quantities have the same value, or that the expressions represent the same mathematical object. The equality between A and B is written A = B, and pronounced "A equals B". The symbol "=" is called an "equals sign".
Misconceptions about Equality12 documented Misconceptions
Check YourselfAssignCompares
= compares two valuesComparisonWithBooleanLiteral
To test whether an expression is true or false, one must compare it to true or to falseEqualityOperatorComparesObjectsValues
o==p compares the objects referred to by variables o and pEqualsComparesReferences
o.equals(p) compares the references stored in the variables o and p