java泛型的使用

package com.msh;

interface  jiekou{

    abstract void printinfo (T t);
}

class cl2{

    public   void aa (T t1){
        System.out.println("泛型的方法");
        System.out.println(t1);

    }
}



            //限定 String 类型
class  cl1 implements  jiekou{
    T a;

    public cl1(T a){
        this.a=a;
    }
    public T getdata(){

        return a;
    }

    @Override
    public void printinfo(T2 t2) {
        System.out.println("输出");
        System.out.println(t2);
    }
}




public class test {
    public static void main(String[] args) {

             cl1 a=new cl1("海龙");
            a.printinfo("测试");
            cl2 ab=new cl2();
            ab.aa("陈");
            ab.aa(1);

    }


}