Java数据泛型正确的初始化方法

T[] array;
array = (T[]) new Object[10];
T[] rep() {
return array;
}

Object[] array;
array = new Object[10];
T[] rep() {
return (T[])array;
}

public class GenericArrayWithTypeToken<T> {
private T[] array;

public GenericArrayWithTypeToken(Class<T> type,int sz) {
array = (T[]) Array.newInstance(type,sz);
}

public void put(int index,T item) {
array[index] = item;
}

public T get(int index) {
return array[index];
}

public T[] rep() {
return array;
}

public static void main(String[] args) {
GenericArrayWithTypeToken<Integer> array = new GenericArrayWithTypeToken<Integer>(Integer.class,100);
//this is worked
Integer[] rep = array.rep();
}

}