"Application Cases of LELA Programming Language in the Java Library"
"Application Cases of LELA Programming Language in the Java Library"
Summary:
Leola is a JVM -based programming language, which is widely used in the Java class library.This article will introduce several application cases in Leola in the Java library and provide the corresponding Java code examples.
1. Leola calls Java class library method:
Leola has the ability to seamlessly integrate with Java language, and can directly call the Java class library.Below is a simple example, showing how to use Leola to call the method in the Java library.
// leola calls the Java class library method example
import java.util.Date;
public class LeolaExample {
public static void main(String[] args) {
// Use Leola to call the gettime method of the Java Date class
long currentTime = (long) Leola.eval("Date getTime()",new Date());
System.out.println ("Current timestamp:" + Currenttime);
}
}
2. The interaction between Leola and Java libraries:
Leola can not only call the Java library method, but also interact with the Java class library.The following is an example that shows how to create objects in the Java class library and pass it to Leola.
// interactive examples of Leola and Java libraries
import java.util.ArrayList;
import java.util.List;
public class LeolaExample {
public static void main(String[] args) {
// Create ArrayList objects in Java
List<String> list = new ArrayList<>();
list.add("Leola");
list.add("Java");
// Pass the ArrayList object to leola for further processing
Leola.eval("def list = @list", list);
Leola.eval("for item in list { print(item) }");
}
}
3. Leola custom Java library interface:
Leola supports the use of Java to write custom library interfaces and call these interfaces in Leola.The following is an example that shows how to create an interface in Java and implement the interface in Leola.
// leola custom Java library interface example
public interface Greeting {
void greet(String name);
}
public class LeolaExample {
public static void main(String[] args) {
// Implement the GREETING interface in Leola
Leola.eval("class LeolaGreeting implements Greeting { void greet(String name) { print('Hello, ' + name + '!') } }");
// Call the Greeting interface method implemented in leola
Leola.eval("LeolaGreeting greeter = LeolaGreeting(); greeter.greet('Leola')");
}
}
in conclusion:
The LELA programming language is widely used in the Java class library. It can seamlessly call the Java class library method, interact with the Java library, and support the custom Java class library interface.Through these cases and examples, we can better understand the application scenarios and flexibility of Leola's application scenarios in the Java library.
