三、Comparator比较器 有参构造方法中接收new comparator<E>,即comparator的对象 重写compare方法,注意主要条件和次要条件(三元运算符) 五、案例一 总成绩可以在Student类中添加方法getSum(),也可以在主函数加。 六、案例二 Random类的用法:创建对象,对象调用方法nextInt(bound)...
importjava.util.TreeSet;importjava.util.Comparator;classCatimplementsComparable<Cat>{privateStringname;privateintage;publicCat(Stringname,intage){this.name=name;this.age=age;}publicStringgetName(){returnname;}publicintgetAge(){returnage;}@OverridepublicintcompareTo(Catother){returnInteger.compare(this.a...
Java LinkedHashSetclassextends HashSetandimplements Setinterface. It is very very similar toHashSetclass, except if offers thepredictable iteration order. Table of Contents 1.LinkedHashSet Hierarchy2.LinkedHashSet Features3.LinkedHashSet Constructors4.LinkedHashSet Methods5.LinkedHashSet Example6.Linked...
Keys are ordered with respect to the comparator. Implements Map, IteratorWithKey, EnumerableWithKey, JSONSerializer and JSONDeserializer interfaces. package main import "github.com/emirpasic/gods/maps/treemap" func main() { m := treemap.NewWithIntComparator() // empty (keys are of type int)...
Keys are ordered ordered with respect to the comparator. Implements Map, IteratorWithKey, EnumerableWithKey, JSONSerializer and JSONDeserializer interfaces. package main import "github.com/emirpasic/gods/maps/treemap" func main() { m := treemap.NewWithIntComparator() // empty (keys are of ...
class CompareByLen extends Object implements Comparator<String>{ public int compare(String o1,String o2){ int num = o1.length-o2.length; return num ==0?s1.compareTo(s2):num ; } } TreeSet<String> ts = new TressSet<>(new CompareByLen()); ...
IntComparator(priorityA, priorityB) // "-" descending order } // PriorityQueueExample to demonstrate basic usage of BinaryHeap func main() { a := Element{name: "a", priority: 1} b := Element{name: "b", priority: 2} c := Element{name: "c", priority: 3} queue := pq.NewWith...
Keys are ordered with respect to the comparator. Implements Map, IteratorWithKey, EnumerableWithKey, JSONSerializer and JSONDeserializer interfaces. package main import "github.com/emirpasic/gods/maps/treemap" func main() { m := treemap.NewWithIntComparator() // empty (keys are of type int)...
A set backed by a red-black tree to keep the elements ordered with respect to the comparator. Implements Set, IteratorWithIndex, EnumerableWithIndex, JSONSerializer and JSONDeserializer interfaces. package main import "github.com/emirpasic/gods/sets/treeset" func main() { set := treeset.NewWi...
Keys are ordered ordered with respect to the comparator. Implements Map, IteratorWithKey, EnumerableWithKey, JSONSerializer and JSONDeserializer interfaces. package main import "github.com/emirpasic/gods/maps/treemap" func main() { m := treemap.NewWithIntComparator() // empty (keys are of ...