Data type and data flow control in the Pure4j Core framework
The Pure4J Core framework is a Java -based open source framework for processing data type and data flow control.This article will explore the core concepts in the Pure4J Core framework and deepen the understanding through the Java code example.
1. Data type
The Pure4j Core framework supports rich data types, including basic data types (such as integer, floating -point number, Boolean value, etc.) and custom data types (such as enumeration, collection, custom class, etc.).Using the Pure4j Core framework can ensure the accuracy and security of the data type.
Java code example:
@Pure
public class Person {
private final String name;
private final int age;
public Person(String name, int age) {
this.name = name;
this.age = age;
}
public String getName() {
return name;
}
public int getAge() {
return age;
}
}
In the above example, we define a custom class called Person, and use the @Pure annotation mark on this class.This means that the objects of this class are immutable, all fields are final, and the state of the class will not be modified.
2. Data stream control
The Pure4j Core framework provides a mechanism for data flow control to ensure that the data flow is controllable during the program execution period and follows certain rules.By using the Pure4J Core framework, errors and abnormal risks caused by data circulation in the program can be reduced.
Java code example:
@Pure
public class Calculator {
public static int add(int a, int b) {
return a + b;
}
public static int subtract(int a, int b) {
return a - b;
}
public static int divide(int a, int b) {
if (b == 0) {
Throw New iLlegalargumentexception ("Division cannot be zero");
}
return a / b;
}
}
In the above examples, we define a class called Calculator, which contains static methods for basic mathematics operations such as addition, subtraction, and division.Using the Pure4j Core framework can ensure that the flow of data in these methods is controllable, and by verifying the input parameters, zero errors in the removal method are avoided.
By using the Pure4J Core framework, we can better handle data type and data flow control to improve the reliability and stability of the program.It is hoped that through the introduction of this article, readers can have a deeper understanding of the Pure4J Core framework and apply it in actual projects.
