Effect of using the Python programming language in Java

The Python programming language must be integrated with many programming languages. Java is a programming language that has the most contact with the Python programming language. Next, let's take a look at how to call the Python programming language in Java.

 
 

  
  
python.java   
  
  
import java.util.List;   
  
  
import org.python.core.PyException;   
  
  
import org.python.core.PyInteger;   
  
  
import org.python.core.PyObject;   
  
  
import org.python.util.PythonInterpreter;   
  
  
public class python {   
  
  
public static void main(String []args)throws PyException   
  
  
{   
  
  
PythonInterpreter interp =new PythonInterpreter();   
  
  
System.out.println("Hello, brave new world";   
  
  
interp.exec("import sys";   
  
  
interp.exec("print sys";   
  
  
interp.set("a", new PyInteger(42));   
  
  
interp.exec("print 'test='+str(a)";   
  
  
interp.exec("x = 2+2";   
  
  
PyObject x = interp.get("x";   
  
  
System.out.println("x: "+x);   
  
  
System.out.println("Goodbye, cruel world";   
  
  
interp.exec("import re";   
  
  
interp.exec("t =re.compile('^(0{2})IFCSUM)MANIFEST):')";   
  
  
interp.exec(" a = t.search('00:IFCSUM:MANIFEST:').groups()";   
  
  
PyObject k = interp.get("a");   
  
  
List list = ((List)k.__tojava__(List.class));   
  
  
//System.out.println(k);   
  
  
System.out.println(list);   
  
  
}   
  
  
}  
 
 

The above is the specific application of the Python programming language in Java.