field.java~21~

拓扑排序实现排课功能 8学期任意多门课程排序

package course;
import java.util.Stack;

/**
 * <p>Title: 学期域</p>
 *
 * <p>Description:保存学期数 </p>
 *
 * <p>Copyright: Copyright (c) 2007</p>
 *
 * <p>Company: </p>
 *
 * @author not attributable
 * @version 1.0
 */
public class Field {
    int i = 0;
    int term = 0;
    Stack s = new Stack();
    public Field set(Field a){
        Field b=new Field();
        b.i=a.i;
        b.term=a.term;
        return b;
    }
    public void test() {
        Field f = new Field();
        Field d = new Field();
        f.i = 1;
        f.term = 1;
        s.push(f);
        d = (Field)s.pop();
        System.out.print(d.i);

        f.i = 2;
        f.term = 2;
        s.push(f);
        d = (Field)s.pop();
        System.out.print(d.i);


    }

    public static void main(String args[]) {
        Field f = new Field();
        f.test();
    }
}