collection save

I. Basic knowledgeJava Collection FrameworkWhat is a 1.Java set frame? What are some of the advantages of a collection framework?There are collections in each programming language, and the original Java version contains several collection classes:

Original works, can be reproduced, but please mark the source address: http://www.cnblogs.com/V1haoge/p/7229478.html1. OverviewJava's collection Class library is very rich, encompassing most of the common data structure forms, allowing us to have a

Data Type In Java virtual machines, data types can be grouped into two categories: the base type and the reference type . A variable of the base type holds the original value, that is, the value that he represents is the number itself, and the

Read Catalogue Concept and function Architecture of the collection framework Introduction to Collection interface and list interface About Map and HashMap Collection Tool Class: Collections Summary Back to top

Integer collectionAn integer collection (insert) is one of the underlying implementations of a collection key, and when a collection contains only an integer value element and the number of elements in the collection is not long, Redis uses an

A collection, or container, for storing data, that is, loading things.Object-oriented contains a lot of containers, variables, and stored in an array. There are many arrays, which are stored in two-dimensional arrays. The data is much, save it with

This article mainly introduces the framework of the Java collection, so that we have an understanding of the overall framework of the Java collection. The collection interface, the map interface, and the three sub-interface Set,list,queue of the

1. What is a collection? 1.1 Overview of the Java collection: On the one hand, object-oriented language to the embodiment of the object is in the form of objects, in order to facilitate the operation of multiple objects, it is necessary to store

Detailed description of JVM memory partition and garbage collection mechanism, jvm garbage collection When writing Java code, you do not need to worry about whether your New object is released or when. Because the JVM has an automatic garbage

Java Collection framework 1, java Collection framework1. Summary All collection classes are located under the java. util package. Only objects can be saved in the collection (the referenced variables of objects are saved ). (Arrays can save basic