The original type of Guava (Google Common Libraries) in the development of Java Class Library

In Java development, GUAVA is a very important and cannot be ignored.It is a commonly used Java tool -class library developed and maintained by Google, which aims to simplify and improve some common tasks in the development of Java. The GUAVA library provides many useful functions, covering many different fields, such as collective operations, concurrency, string processing, IO, cache, etc. In GUAVA, a very important function is support for the original data type.The original data types in Java include Byte, SHORT, INT, Long, Float, Double, Boolean, and Char.These original types are often used in Java development, so Guava provides a series of tool classes to handle and operate these types. The following is a sample code for some Guava original type operations: 1. Use the Guava ints class to convert the original type and byte: // Convert int to byte array int number = 12345; byte[] bytes = Ints.toByteArray(number); // Convert byte array to int int result = Ints.fromByteArray(bytes); 2. Use the Guava Doubles class to convert the original type and string: // Convert doubled to string double number = 3.14; String str = Doubles.toString(number); // Convert the string to Double double result = Doubles.parseDouble(str); 3. Use the Guava Booleans class to convert the original type and Boolean value: // Convert the Boolean value to int boolean flag = true; int value = Booleans.compare(flag, true); // 返回1 // Convert int to Boolean int number = 0; boolean result = Booleans.fromInt(number); // 返回false In addition to the above exceptions, Guava also provides many other original types of operations, such as calculating hash values, relatively small, and equal judgment.These methods can simplify the processing of primitive types and provide more reliable and efficient operations. All in all, Guava plays an important role in the development of the Java library, and its support for the original data type is particularly important.By using the tool class provided by Guava, we can handle and operate the original data types more conveniently, thereby simplifying the development process and improving the readability and performance of code.Regardless of the integration operation, concurrent treatment, or string processing, Guava is a weapon that Java developers cannot ignore.