Hands-On Artificial Intelligence with Java for Beginners

Executing Prolog queries using Java

Now, we'll look at how to ask Prolog queries in Java. Let's get to the Java code and see how this can be done.

Create a Java project in NetBeans, and type the following code:

import java.util.Map;import jpl.Query;import jpl.JPL;public class ProrlogJava {    /**     * @param args the command line arguments     */    public static void main(String[] args) {        // TODO code application logic here        String t1 = "consult('/Users/admin/Documents/NetBeansProjects/JPLwJava/family.pl')";        System.out.println(t1 + " " + (Query.hasSolution(t1) ? "succeeded" : "failed"));        String t2 = "child(sonny, vito)";        System.out.println(t2 + " " + (Query.hasSolution(t2) ? "provable" : "not provable"));        String t3 = "grandfather(vito, anthony)"; System.out.println(t3 ...