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package generics;

/**

* 들어오는 값과 나가는 값을 T 형으로 바꿔 줘야**/

class GenList<T>{

private Object[] nums;

private int current;

public GenList(){

nums = new Object[3];

current = 0;

}

public void add(T num){

nums[current] = num;

current++;

}

public T get(int index){

return (T)nums[index];

}

}

public class DemoGen {

public static void main(String[] args) {

GenList<String> list = new GenList();

list.add("박소정");

// list.add(26); // String 이 아닌게 들어오니 error 발생 타입의 안정성 보

// int a = (Integer)list.get(0); //

}

}