Prolog Suppose we have a collection of rules about what people are wearing. We w

Question

Prolog

Suppose we have a collection of rules about what people are wearing. We will represent an item of clothing by a structure with function name "clothing" and three parameters: the type of clothing (hat, shirt, etc.), the color (blue, green, etc.), and the size (a whole number). For example:

wearing( julia, clothing( hat, red, 3 ) ).
wearing( julia, clothing( shirt, blue, 4 ) ).
wearing( jack, clothing( shirt, purple, 6 ) ).
wearing( bill, clothing( hat, red, 10 ) ).
wearing( marie, clothing( shirt, blue, 2 ) ).
wearing( jack, clothing( hat, green, 10 ) ).

Write a rule (and then test it) to find facts of who will be pinched on Saint Patrick’s Day for not wearing green.

Explanation / Answer

package Other;

import java.util.Comparator;
import java.util.Set;
import java.util.TreeMap;

public class Chegg_1 {
   public static void main(String[] args) {
       TreeMap<Clothing,String> map=new TreeMap<Clothing,String>(new pinchWinner());
       map.put(new Clothing("hat","red",3),"julia");
       map.put(new Clothing("shirt","blue",4),"julia");
       map.put(new Clothing("shirt","purple",6),"jack");
       map.put(new Clothing("hat","red",10),"bill");
       map.put(new Clothing("shirt","blue",2),"marie");
       map.put(new Clothing("hat","green",10),"jack");
       Set<Clothing> keys=map.keySet();
       for(Clothing key:keys){
           System.out.println(key);
       }
      
   }
}
class pinchWinner implements Comparator<Clothing>{
   public int compare(Clothing c1,Clothing c2){
       if(c1.getColour().equalsIgnoreCase("green")){
           return 0;
       }else{
           return 1;
       }
   }
}
class typeComparator implements Comparator<Clothing>{
   public int compare(Clothing c1,Clothing c2){
       return c1.getType().compareTo(c2.getType());
   }
}
class colourComparator implements Comparator<Clothing>{
   public int compare(Clothing c1,Clothing c2){
       return c1.getColour().compareTo(c2.getColour());
   }
}
class sizeComparator implements Comparator<Clothing>{
   public int compare(Clothing c1,Clothing c2){
       if(c1.getSize()>c2.getSize()){
           return 1;
       }else{
           return -1;
       }
   }
}
class Clothing{
   private String type;
   private String colour;
   private int size;
   public Clothing(String type, String colour,int size){
this.type = type;
this.colour = colour;
this.size=size;
}

public String getType() {
return type;
}
public void setType(String type) {
this.type = type;
}
public String getColour() {
return colour;
}
public void setColour(String colour) {
this.colour = colour;
}
public int getSize(){
   return size;
}
public void setSize(int size){
   this.size=size;
}
public String toString(){
return "Type: "+this.type+"-- Colour: "+this.colour+"---Size:"+this.colour;
}
}

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