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package Generic;

public class Demo8 {

public static void main(String[] args) {

MyInter<String> my = new MyInter<String>();

my.print("泛型");

MyInter2 my2 = new MyInter2();

my.print("只能传字符串");

}

}

interface Inter<T> {

void print(T t);

}

// 实现不知为何类型时可以这样定义

class MyInter<T> implements Inter<T> {

public void print(T t) {

System.out.println("myprint:" + t);

}

}

//使用接口时明确具体类型。

class MyInter2 implements Inter<String> {

public void print(String t) {

System.out.println("myprint:" + t);

}

}