Using Comparator interface we can order the objects of user-defined class easily. Comparator interface is present in the java.util package Comparator class has two methods: We can sort the elements of an ArrayList by using the sort function but when it’s about sorting the elements based...
Some data structures (e.g. TreeMap, TreeSet) require a comparator function to automatically keep their elements sorted upon insertion. This comparator is necessary during the initalization. Comparator is defined as: Return values (int): negative , if a < b zero , if a == b positive , if...
"fmt" "github.com/emirpasic/gods/sets/treeset" ) type User struct { id int name string } // Comparator function (sort by IDs) func byID(a, b interface{}) int { // Type assertion, program will panic if this is not respected c1 := a.(User) c2 := b.(User) switch { case c...
Invokes the given function once for each element and returns a container containing the values returned by the given function. Map(func(index int, value interface{}) interface{}) Container Select Returns a new container containing all elements for which the given function returns a true value. ...
Invokes the given function once for each element and returns a container containing the values returned by the given function. Map(func(index int, value interface{}) interface{}) Container Select Returns a new container containing all elements for which the given function returns a true value. ...
Sort is a general purpose sort function. Lists have an in-place Sort() function and all containers can return their sorted elements via containers.GetSortedValues() function. Internally these all use the utils.Sort() method: package main import "github.com/emirpasic/gods/utils" func main() ...
"fmt" "github.com/emirpasic/gods/sets/treeset" ) type User struct { id int name string } // Comparator function (sort by IDs) func byID(a, b interface{}) int { // Type assertion, program will panic if this is not respected c1 := a.(User) c2 := b.(User) switch { case c...
"fmt" "github.com/emirpasic/gods/sets/treeset" ) type User struct { id int name string } // Comparator function (sort by IDs) func byID(a, b interface{}) int { // Type assertion, program will panic if this is not respected c1 := a.(User) c2 := b.(User) switch { case c...
Sort is a general purpose sort function. Lists have an in-place Sort() function and all containers can return their sorted elements via containers.GetSortedValues() function. Internally these all use the utils.Sort() method: package main import "github.com/emirpasic/gods/utils" func main() ...
Some data structures (e.g. TreeMap, TreeSet) require a comparator function to automatically keep their elements sorted upon insertion. This comparator is necessary during the initalization. Comparator is defined as: Return values (int): negative , if a < b zero , if a == b positive , if...