Jimmutable Collections: The method of implementing an unable variable data structure in the Java class library

Unable variable data structure plays an important role in programming. They have the characteristics of thread security in the multi -threaded environment and can improve the performance of the program.Jimmutable is a method in the Java class library to realize the unable variable data structure.This article will explore the basic concepts, usage methods, and Java code examples of Jimmutable. Jimmutable is a durable data structure. Its design idea is to never modify the existing data, but to create new data to achieve non -variability.In Jimmutable, each time the data is modified, a new data structure object is returned, not directly modified on the original object.This ensures that the data will not be affected by external changes, thereby maintaining the immorality of the data. The Jimmutable library provides a set of data structure classes, including lists (JLIST), set (JSET), mapping (JMAP), etc.These classes realize efficient data operation and sharing memory by using unsatisfactory objects and structural sharing.Because the copy of the data is required, Jimmutable can ensure the security of threads in a multi -threaded environment and avoid complication caused by modifying data. Here are some examples of examples that use Jimmutable to achieve unsusable data structures: 1. JList example: JList<String> list1 = JList.of("apple", "banana", "cherry"); JList<String> list2 = list1.insert("date"); System.out.println (list1); // Output: [Apple, Banana, Cherry] System.out.println (list2); // Output: [Date, Apple, Banana, Cherry] 2. JSET example: JSet<Integer> set1 = JSet.of(1, 2, 3); JSet<Integer> set2 = set1.insert(4); System.out.println (set1); // Output: [1, 2, 3] System.out.println (set2); // Output: [1, 2, 3, 4] 3. JMAP example: JMap<String, Integer> map1 = JMap.of("apple", 1, "banana", 2); JMap<String, Integer> map2 = map1.insert("cherry", 3); System.out.println (MAP1); // Output: {Apple = 1, Banana = 2} System.out.println (MAP2); // Output: {Apple = 1, Banana = 2, Cherry = 3} By using the Jimmutable library, we can easily create and operate the unable variable data structure.These data structures can provide performance advantages, thread security, and code simplicity, and are powerful tools for building reliable and efficient Java programs. Use Jimmutable in the project to add corresponding dependencies to the construction tool, and use the class and methods provided by Jimmutable in the document instructions.It can effectively help us realize the unable changeable data structure and improve the performance and security of the program. To sum up, Jimmutable is a method of unable variable data structure in the Java class library.By using Jimmutable, we can easily create and operate data structures such as unchanged lists, sets, and mapping to improve the performance and thread security of the program.In actual projects, we only need to add the dependencies of the Jimmutable library and use the corresponding class and methods based on the document.