Production.java

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package hit.core;

import java.util.*;
/**
 *
 * @author songmingye
 */
public class Production {
    public int num;
    public String left;
    public ArrayList<String> right;
    public ArrayList<String> select;
    public Production(int no){
        this.num = no;
        this.left = null;
        this.right = new ArrayList<>();
        this.select = new ArrayList<>();
    }
}