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工厂模式

package factory1;public abstract  class fac1{    public abstract void run(); }public class huu extends fac1{    public void run(){        int a=7;        System.out.print(a);    }}public class wu extends fac1{    public void run(){        int a=8;        System.out.println(a);    }}public class wu11 {    public static void main(String[] args) {        // TODO Auto-generated method stubfac1 li =new wu();li.run();    }}