java iterator index

Java (article 30) ----- Iterator, java ----- iterator Iteration is no stranger to Java. We often use the iterative interfaces provided by JDK to iterate Java sets. Iterator iterator = list.iterator(); while(iterator.hasNext()){

vector Container Vectors are a collection of objects of the same type, each with a corresponding integer index value. As with string objects, the standard library is responsible for managing the associated memory of the storage element. We refer to

ObjectiveThis time to introduce the iterator pattern, is also a behavior pattern. I now think that blogging a bit to deal with, before the day an article, feel this actually a bit did not understand a thorough written down, and after writing himself

Objective This time to introduce the iterator pattern, is also a behavior pattern. I now think that blogging a bit to deal with, before the day an article, feel this actually a bit did not understand a thorough written down, and after writing

Overview In object-oriented software design, we often encounter a class of collection objects. The internal structure of these collection objects may have various implementations, but in conclusion, there are only two points of attention: one is the

Before we implemented the iterator pattern, many programming languages actually had built-in iterator classes, such as Java, which implemented the iterator iterator for us. We first look at the source code in iterator.Through the JDK source we found

OverviewIn object-oriented software design, we often encounter a class of collection objects, the internal structure of such a collection object may have a variety of implementations, but it comes down to two points that we need to care about: one

Run: For (iterator it = O. getsons (). iterator (); it. hasnext ();){ R = (knowledgenode) it. Next (); It. Remove (); // if it is changed to O. getsons (). Remove (r);, the concurrentmodificationexception will be thrown. } An exception occurred. It

The java. util package contains a series of important collection classes. This article will start with analyzing the source code, thoroughly studying the internal structure of a collection class, and traversing the source code implementation of the

Iterator pattern definitionIterator mode (Iterator), which provides a way to sequentially access various elements in an aggregated object without exposing the object's internal representation .Role composition of the iterator pattern(1) Iterator