public class PassReference
{
    public static void main(String[] ar)
    {
        Test c = new Test();
        System.out.println("在调用方法inceptReference()之前，c.a的值为：" + c.a);
        inceptReference(c);
        System.out.println("在调用方法inceptReference()之后，c.a的值为：" + c.a);
    }

    static void inceptReference(Test t)
    {
        System.out.println("The first value of t.a is：" + t.a);
        t.a++;
        System.out.println("The second value of t.a is：" + t.a);
    }
}

class Test
{
    public int a = 0;
}