`&` (intersection) operator

The left-associative, binary infix & operator is used to compute the intersection of its operands.

Usage

Intersection on values:

void m(Set<Integer> primes, Set<Integer> evens) {
    Set<Integer> two = primes & evens;
}

Note: The & operator is also commonly used to intersect types. This page is about using the & operator on values.

The & operator is defined as follows:

lhs.intersection(rhs)

See the language specification for more details.

The & operator is polymorphic. The meaning of & depends on the Set interface

The result type of the | operator is a Set whose element type is the intersection of the element types of its operands.