Guava PrimitiveTypes module technology in the Java Class library (Technical Principles of Guava PrimitivePes Module in Java Class Libraries))

Guava is a popular Java library that provides many practical functions and tools. One of the modules is PrimitiveTypes.This article will introduce the technical principles of the Guava PrimitiveTypes module and provide some Java code examples to help readers better understand. The main goal of the Guava PrimitiveTypes module is to provide operating support for the original types of Java (such as int, Long, Boolean, etc.), and solve some common problems that may be encountered when dealing with these types.Below we will discuss its technical principles in detail. 1. Type conversion (Type Convert) The Guava PrimitiveTypes module provides some convenient methods for conversion between original types.For example, you can use the `InTS` class to convert the string to int, or convert the int type to byte array.Here are some examples of type conversion using the `ins' for type conversion: // String to int to int String numberStr = "123"; int convertedInt = Ints.tryParse(numberStr); // INT Type Type to byte array int number = 256; byte[] byteArr = Ints.toByteArray(number); 2. Numeric Checking and Manipulation The GUAVA PrimitiveTypes module also provides some methods for numerical judgments and operations.For example, you can use the `iSpowerOFTWO` method of the` INTS` class to determine whether an integer is the power of 2.The following is an example code that uses this method: int num = 8; boolean isPowerOfTwo = Ints.isPowerOfTwo(num); System.out.println (ispoweroftwo); // output true 3. Basic Type Array Handling The Guava PrimitiveTypes module also provides some processing methods for the original type array.For example, you can use the `Concat` method of the` ints` class to connect the two int type arrays together.The following is an example code that uses this method: int[] arr1 = {1, 2, 3}; int[] arr2 = {4, 5, 6}; int[] concatenatedArr = Ints.concat(arr1, arr2); System.out.println(Arrays.toString(concatenatedArr)); // 输出 [1, 2, 3, 4, 5, 6] In addition to the above -mentioned functions, the Guava PrimitiveTypes module also provides other convenient methods to handle the operation of the original type comparison, search, hash calculation and other operations. In summary, the Guava PrimitiveTypes module simplifies the operation of the original type in Java by providing some convenient methods and functions.Not only the type conversion, but also the numerical judgment and operation, the basic type array processing, etc.By using the Guava PrimitiveTypes module, developers can easily handle the original type and improve the readability and maintenance of code. I hope this article will help you understand the technical principles of the Guava PrimitiveTypes module.If you have any questions, please ask at any time.