java——无法使用内部类的属性

/**
 * Created by xabcd on 2019/2/16.
 */
public class java_outer
{
    int score = 95;
    void inst()
    {
        Inner in = new Inner();
        in.display();
    }
    class Inner
    {
        //添加内部类属性
        String name = "张三";
        void display()
        {
            System.out.println("成绩：score="+score);
        }
    }
    public void print()
    {
        //在此调用内部类的name属性
        System.out.println("姓名"+name);
    }
}

/**
 * Created by xabcd on 2019/2/16.
 */
public class test_outer
{
    public static void main(String[] args)
    {
        java_outer ou = new java_outer();
        ou.inst();
    }
}



结果 java报错，提示无法找到name