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Comparablecomparable is the sort interface.If a class implements the comparable interface, it means "this class supports sorting." The class that implements the comparable interface supports sorting, assuming that there is now a list (or array) of
In this article, we introduce the comparable and comparator two interfaces, and their differences, and then, by example, explain how they are used.
Comparable introduction
Comparable is the sort interface.
If a class implements the comparable
I. The difference between comparable and comparator1, comparable and comparator are used to implement the collection of elements in the comparison, sorting.2. Comparable is the sort of method implementation defined within the class, located under
1. comparator and Comparable the same place they are all Java interface, and is used to compare the size of the custom class, what is the custom class: such as PUBLICCLASSPERSON{STRINGNAME;INTAGE&NBSP,}. When we have such a personlist , which
Java-collection framework Collections. sort (), Comparable interface, and Comparator interface, javasortcomparator
Collentions tool class -- java. util. Collections
Collentions is a tool class used to operate collection objects in the Java
1. What is the comparable interface?
This interface forcibly sorts the objects of each class. This sort is calledNatural sortingThe compareto method of the class is called itsNatural Comparison Method. Objects (and arrays) that implement this
Comparable introductionComparable is the sort interface.If a class implements the comparable interface, it means " this class supports sorting ." The class that implements the comparable interface supports sorting, assuming that there is now "a list
The details and differences of Java comparable and Comparator
Java provides us with two comparison mechanisms: comparable and Comparator, what is the difference between them? Come to understand today.
Comparable natural sort
Comparable under the
1 > and > What's the difference
>
The
type T must implement the
Comparable interface, and the type of the interface is T. Only in this way can the instances of T compare size to each other. For example, if
TreeSet are generally used when comparing collection elements. For simple data types, TreeSet can be compared directly. But for complex data types, such as data types or classes that you define, you need to set the comparison and comparison rules
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