java.util.List

@Contract(pure = true) 
public abstract boolean contains(Object o)

Inferred annotations available:

@org.jetbrains.annotations.Contract(pure = true)

Returns true if this list contains the specified element. More formally, returns true if and only if this list contains at least one element e such that (o==null ? e==null : o.equals(e)).

Overrides:: contains in interface Collection

Parameters:: o - element whose presence in this list is to be tested

Returns:: true if this list contains the specified element

Throws:: ClassCastException - if the type of the specified element is incompatible with this list (optional); NullPointerException - if the specified element is null and this list does not permit null elements (optional)