The characteristics and advantages of the UNDERSCORE framework in the Java class library
The UNDERSCORE framework is a practical tool in the Java class library. It provides a set of simple and convenient functions and tools to process data structures such as sets, arrays, string strings.The design of the framework makes it more concise, easy to read and efficient when processing these data structures.
The characteristics and advantages of the UNDERSCORE framework are mainly reflected in the following aspects:
1. Functional programming style: The UNDERSCORE framework uses the idea of functional programming, which provides a series of functions that can be called chain.This style can make the code more concise and easy to read, and improve the replication and maintenance of the code.
2. Powerful collection operations: The UNDERSCORE framework provides a wealth of collection operation functions, such as filtering, mapping, return, sorting, etc.These functions can greatly simplify the processing process of set data and greatly improve development efficiency.
Below is an example code that uses the UNDERSCORE framework for a collection operation:
import com.github.underscore.Underscore;
public class CollectionExample {
public static void main(String[] args) {
int[] numbers = {1, 2, 3, 4, 5};
// Use the UNDERSCORE framework to filter and map the array
int[] filteredNumbers = Underscore
.filter(numbers, n -> n % 2 == 0)
.map(n -> n * 2)
.value();
for (int num : filteredNumbers) {
System.out.println(num);
}
}
}
In the above code, the array was filtered and mapping the array using the UNDERSCORE framework.First use the `Filter` function to scree the even number, and then double the number of these even couples with the` Map` function.Finally use the `value` function to obtain the results array and print output.
3. Chain operation: The function of the UNDERSCORE framework returns a packaging class that can be called chain.The style of this chain operation can make the code more concise and easy to read without writing a lengthy intermediate variable.
4. Compatible with Java 8: The Underscore framework makes full use of the lambda expression and function interface introduced by Java 8. By using these new features, the code is more concise and easy to use.
To sum up, the characteristics and advantages of the Underscore framework are that it provides a set of simple and convenient functions and tools that can be efficiently processed with data structures such as collection, array, and string in functional programming style.Using the Underscore framework can greatly improve development efficiency, reduce the writing of redundant code, and make the code more easy to read and maintain.