comparable interface

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

The class implements the comparable interface to indicate that the class instance itself has an intrinsic sort relationship (natural ordering).Therefore, the class can collaborate with many generic algorithms and collection implementations.And the

Package Cn.caijiajia.campaignnew.job;import java.util.ArrayList;import java.util.Collections;import java.util.List;Public class book implements comparable{/ * Write a class book with the Name,price,press,author property. Then create 5 objects into

Reprinted from: http://blog.csdn.net/zxy_snow/article/details/7232035There are two ways to sort list by using the Collections.sort methodThe first is that the object in the list implements the comparable interface, as follows:/*** Sort the user

[LeetCode] two num uses the comparable interface to sort objects. leetcodecomparable Question two num Given an integer array and a target value, we need to find two numbers in the array so that their sum is equal to the target value, and return the

Interface comparableThis interface forces the overall ordering of the objects for each class that implements it. This sort is called the natural ordering of the class, and the compareTo method of the class is called its natural comparison method

Comparable interfaceClasses that implement the comparable interface, which can be compared to size.There is only one method in the comparable interfacepublic int CompareTo (object obj);This method: Returns 0 indicating this = = objReturns a positive

Write a book class that has at least the name and price two properties. To implement the comparable interface, the CompareTo () method of the interface specifies that the size relationship of two book class instances is the size of the price

Tips"Effective Java, third Edition" an English version has been published, the second edition of this book presumably many people have read, known as one of the four major Java books, but the second edition of 2009 published, to now nearly 8 years,

1.Comparable Interface Description: Can be compared (sortable)Example: sequencing by the Y attribute of MyClassClass MyClass implements comparable{ private int x; private int y; Public MyClass (int x,int y) { this.x=x;

Today LZ in Do Huffman codec, need to do the module has one is, for the characters appear frequency to order from small to large, and then continue to build frequency sort sequence, My last option was to use LinkedList to emulate the Huffmannode

int CompareTo (T o)Compares this object with the specified object for order. Returns a negative integer, zero, or a positive integer as this object was less than, equal to, or greater than the Specifi Ed object. Class Name implements

Import Java.util.Arrays;public class Sortapp {public static void Main (string[] args) {student[] Stus = new Student[3];Stus[0] = new Student (11, 99);STUS[1] = new Student (13, 92);STUS[2] = new Student (13, 89);Arrays.sort (Stus);for (Student

Java implements the Comparable interface to achieve custom sorting, javacomparable 1 class Student implements Comparable{ 2 String name; 3 int gpa; 4 @Override 5 public int compareTo(Object arg0) { 6 // TODO Auto-generated

Title, numTest instructions: Given an array of integers and a target value, it is required to find two numbers in the array so that their sum is equal to the target value, and returns a subscript of two numbersIdea: 1. If violence is used, the time

Background:The unordered data in the database is output as a tree structure,：Each record corresponds to a database of data,Requirements come, then how to achieve, first of all, the simplest is directly from the database in order to detect, and then

Recently, the function of doing an object sort needs to be sorted by different rules. Look at the arrays,collections, the Sort method, Learn about the Comparator,comparable two interfaces, find the sort method that applies to yourself, and below

1, the entity class implements the comparable interface, the rewriting CompareTo method Package io; Import Java.text.DateFormat; Import java.text.ParseException; Import Java.text.SimpleDateFormat; Import Java.util.Date; public class Student

Simplified diagram: The Java platform provides a new collection framework. The set framework consists of a group of interfaces used to operate objects. Different Interfaces describe a set of different data types. Framework of Java 2 sets Set

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