异常处理try...catch...finally中的finally关键字相关问题

public void Test(){
    int a = hello();
    System.out.println("a = " + a);
}

public int hello(){
    int a = 10;
    try{
        System.out.println("a = "+ a);
        return a++;
    } catch(Exception e){
        e.printStackTrace();
    } finally{
        System.out.println("a = " + a);
        a++;
        System.out.println("a = " + a);
    }
    return 5;
}