泛型通配符

/*泛型通配符*/
class Info<T>{
private T var;


public T getVar() {
return var;
}
public void setVar(T var) {
this.var = var;
}
public String toString(){
return this.var.toString();
}
}


public class GenericsDemo3 {


public static void main(String[] args) {
// TODO Auto-generated method stub
Info<String> i = new Info<String>();
i.setVar("张三");
fun(i);
}
public static void fun(Info<?> temp){      //此处表示可以接收任意泛型类型的对象
System.out.println("内容："+temp);
}


}