java泛型的局限探究

//静态域或者方法里不能引用类型变量

private static T instance;

//静态方法 本身是泛型方法就行

private static <T> T getInstance(){

}

//    public Restrict() {

//        this.data = new T();

//    }

//      NormalGeneric<double> normalGeneric = new NormalGeneric<>();

        NormalGeneric<Double> normalGeneric = new NormalGeneric<>();

Restrict<Double>[] restrictArray;

  Restrict<Double>[] restricts = new Restrict<Double>[10];